A summary of the field efficacy test report for 20% TB bacteria SC (Lactococcus) field (paper edition)
The 90% thiaca copper original drug and 20% thiazole copper suspension agent (Lonke) produced by Zhejiang Longwan Chemical Co., Ltd. independently passed the Ministry of Agriculture's 8th National 4th National Pesticide Registration and Accreditation Committee. Technical review and expert review, and was officially registered on December 29, 2008, of which the official registration number for the 90% Thiobacillus original drug was PD20086025 and the official registration number for 20% Thiobacillus SC (Lactococcus). For PD20086024.
20% Thiobacillus Copper Suspension (Lactococcus) Obtained Pesticide Forming in 5 Diseases of 3 Crops, Cucumber Bacterial Leaf Spot, Citrus Canker, Scab, Rice Bacterial Stripe, and Bacterial Blight Registration.
In addition, Zhejiang Longwan Chemical Co., Ltd. Thiobacillus thuringiensis (Loncobacteri) has submitted registration applications for expanding the use of three diseases in three crops including watermelon wilt disease, cabbage soft rot, and tobacco wildfire disease. The data has been accepted. The number of the comprehensive office for administrative approval of the Ministry of Agriculture is 0309016566.
In addition to the official registration of test crop control targets, there are other areas throughout the country that use copper thiobacillus (Lonkerella) for field disease prevention of other crops outside the official registration, and they are all backed by Thiobacillus (Loncobacter) The control effect on other diseases is also very good. Xiong Xingping now compiles and summarizes the test results of the standardized academic papers in the national academic journals as follows. (Xiong Xingping)
1. Field efficacy trial of 20% bronchitis SC against broccoli black rot and bacterial black spot
"Jiangxi Plant Protection", June 2007, 3O, Issue 2 JIANGXI PLANT PROTECTION
Zheng Cunmian (Planting Plant Protection Station of Pingnan County, Fujian Province, Pingnan 352300, China)
Abstract : The test results show that 20% Trichoderma spp. 500 times has a good control effect against broccoli black rot and bacterial black spot, and it is sprayed 3 times continuously in the initial stage or in the beginning. 7-10 days, can effectively control the black rot, bacterial black spot disease damage.
Key words: copper thiate; cauliflower; black rot; bacterial black spot; control effect
CONCLUSIONS AND DISCUSSION: Dragon's fungus (thiacax) has good control effect on cauliflower black rot and bacterial black spot, and it has no harm to the growth of crops. It can be used in production. The use of dragon's fungus in the prevention and control of the two diseases should be used in the absence of disease or early onset. It is recommended to use the best concentration of 500 times the liquid, 50kg per 667m2 spray liquid, continuous spraying 2-3 times, each time interval 7-10 day. At the same time as chemical control, we must strengthen the cultivation and management, sorghum deep groove, and control the amount of watering in the field, can make the disease more effective control.
2, 20% Rung fungus suspension agent for the prevention and treatment of apple rot disease efficacy test
"Yantai Fruit Tree" No.2, 2007 (Total 98)
Yan Yugang, Zeng Aizhen, Zhao Gang, Li Zheng (Plant Protection Station, Yantai City, Shandong Province, 264001, China; Plant Protection Station, Muping District, Yantai City)
Key words: copper thiazolybdate; apple tree; rot disease; rotenone; trial; efficacy
Apple tree rot is a devastating disease. It mainly affects trunks, main branches and larger lateral branches. It has serious orchards. The trees are very sick and the branches are incomplete. They even cause dead trees and destroy the garden. The development of fruit tree production. In order to explore new ways to prevent apple rot, seize the opportunity of application, and use economic, safe, and effective chemical control, in 2006 we introduced the thiazole organic copper bactericide Dragon's Bacteria (thiabendron) to test its prevention and control The effect of apple rot disease on the treatment of stem ringworm disease, determine the appropriate application methods and dosage, and provide scientific basis for the promotion of large areas.
The recurrence rate of the lesions treated by the bronchobacillus (Ticlosporium bronchiseptica) was significantly lower than that of the control agent "multiple-effect decending rot." In addition, through the investigation, the prevention and treatment of ringworm disease by the bronchobacillus bronchiseptica has a certain effect, and can achieve both the purposes of cure.
Summary: The results of the test showed that 20% of the bronchobacillus sp. suspension was safe for fruit trees within the test concentration range. Application method: Before germination, the spring fruit tree is smeared with 30-50 times liquid of dragon's bacterium (thia copper) and then sprayed once with 200 times of dragon's bacterium (thiacax) to have a good control effect against rot. The ideal agent to replace high-residue pesticide Formamate is worth promoting in a large area.
3, 2O% Dragon's fungus suspension agent control watermelon wilt disease
Shanghai Agricultural Science and Technology, 4th Issue, 2004
Yang Huanqing (Zhejiang Yongjia County Plant Protection Station 325100)
Key words: copper thienobacterium; watermelon; wilt disease; experiment
Fusarium wilt in watermelon is a serious hazard in Yongjia County, Zhejiang Province. In order to screen for effective control agents against Fusarium oxysporum f. sp. var. squash, and verify the control effect of 20% of the bacterium Dragon's chlorella suspension on Fusarium wilt in watermelon, this experiment was specifically performed. Fusarium wilt of watermelon is caused by Fusarium oxysporum f. sp., which can be affected from seedlings to adult plants. Mycelia and chlamydospore are the main pathogens for wintering in the soil along with the diseased bodies. Seeds and organic fertilizers can also carry the bacteria. 20% Longkei (Toxicillin Copper) Suspension can effectively control the watermelon wilt disease in re-planting fields. It can be widely used in the prevention and control of watermelon wilt disease. It is recommended that 20% Longkei (Toxicillin copper) suspension 600 times liquid spray. And pouring roots. Therefore, the watermelon wilt disease to control the rooting effect is better, the control time should start from the seedling stage, and continuous control of 2 to 3 times, spaced about 7 days. It is suggested that the prevention and control measures should be balanced by watering roots and sprays to further improve control efficiency.
4ã€The preliminary study on the effect of 20% dragon's fungus in controlling bacterial wilt in tomato
"Modern Agricultural Science and Technology" No. 2 of 2005
Cao Peide, Yan Xuejin, Fei Zengfeng (Agricultural Technology Station, Siqian Town, Taishun County, Zhejiang Province 235500; Agricultural Technology Station, Xiansui Township, Taishun County, Taishun County Agricultural Bureau)
Abstract: The results of the field trials show that 20% of the bronchobacillus (Toxicillin copper) suspension 500 times solution has a good effect on the control of tomato bacterial wilt. After the third treatment of the plot, the control effect was still 68.2% on the 17th day; the control effect on the 17th day after the drug application in the large area was 53.6%, 72% of the same period of the same period, 72% of agricultural streptomycin 40O times, 77% of the Killed (copper hydroxide) 500 times the liquid has a greater increase, it is worth further demonstration and promotion in Datian.
Key words: copper thienobacterium; tomato; bacterial wilt; control; trial
The 20% Longkei (Toxicillin copper) suspension is a new type of highly effective, low-toxicity and safe thiazole organic copper fungicide, which has special effects on the prevention and treatment of bacterial diseases. In order to find out its control effect on tomato bacterial wilt, the author has conducted a field efficacy trial on 20% Longkei suspension in the past two years.
Test conclusion: Through the test, we believe that the use of 20% Longke (bronze copper) suspension 500 times solution in the initial stage of tomato bacterial wilt, with 250 grams of liquid per plant continuous watering root 3 times, each time interval 7 days, there was obvious control effect on tomato bacterial wilt, and the control effect was obviously better than 72% agricultural streptomycin, chloramphenicol (77% copper hydroxide) and other comparative agents, which could be further demonstrated in production and promoted. .
5. Kiwifruit bacterial canker control trial
"Economic Forest Research" No. 3, 2004 - Volume 22 35-36 Nonwood Forest Research
Zhao Junyi, Wu Sijun, Long Yongrong (Jianghua Forestry Bureau, Jianghua 425500, China)
Abstract: Kiwifruit bacterial canker disease is a devastating disease of kiwifruit. Through the experiments of prevention and metallurgy of several different pesticides, the results showed that 72% of agricultural streptomycin SP 2O times coating had the best prevention and treatment effect on the lesions of kiwifruit twigs, followed by 20% of rural chain copper WP20 times, 20% of Ronco. Bacteria (Toxicillin copper) SC 20 times and 72% Streptomycin SP 50 times. The application of the method to brush the best effect. 20% of agricultural chain Wang copper WP800 times, 20% Longkei (TB) copper 800 times SC and 72% of agricultural streptomycin SP 5000 times spraying kiwifruit fruit difference between the three are not Significant.
Key words: kiwi fruit; ulcer disease; copper thiazolybdate; lesion; control experiment
Conclusion: A large number of control trials showed that 72% of streptomycin-producing Streptomycin SP20 times was the best treatment for ulcerative lesions in the stem of kiwifruit stems, followed by 20% of the rural chain copper WP20 times and 20% of Longcobacter Bacterial copper) SC20 liquid and 72% agricultural streptomycin WP50 times liquid; spraying method with the best scraping brushing effect. 20% of the agricultural chain Wang copper WP 800 times, 20% Longkei SC (thiaca copper) 800 times and 72% of agricultural streptomycin SP 5000 times spraying kiwifruit disease have a certain effect, but 3 kinds There was no significant difference in the control effect between the agents.
6. Screening test for the control of bacterial base rot of rice
Pesticides Vol.42 No.2, 2003 Vol.42 No.2 2 (2003)
Liu Anmin Tao Xiuzhen (Fujitai County Plant Protection Station, Yutai 272300, China)
Abstract: Field trials have shown that four fungicide types such as dragon's bacillus (copper thieno), copper (copper hydroxide), clobetasol (mycin), and streptomycin for agricultural use control bacterial root rot of rice. The effect can reach more than 66%, superior to chlorella bromide (chlorobromoisocyanuric acid) and carbendazim, etc., and can greatly reduce the diseased plant rate, the effect of increasing production is obvious, and can be further promoted in production in the future.
Key words: bacterial base rot; bactericide; copper thiate; rice; control effect
Bacterial base rot of rice is an important disease that occurred in rice in our county in recent years. It can develop from the tillering stage to the panicle stage. Because it is soil borne, the infection is fast, and at present there is no high disease in our county. Resistant varieties, therefore, caused great losses to rice production in my county. In addition to strengthening the cultivation of rice in order to improve its own resistance, how to screen out effective agents for the prevention and treatment of this disease is particularly important. I stationed in 2002 in our county a large number of seven kinds of fungicides used to control the disease, conducted a field efficacy comparison test, and achieved good results.
The results of the plot test showed that the 20% Runicillus sp. suspension was the most effective, reaching 78.7%, 77% of the copper from the crown bacterium, 3% of the konjac, 10 million units of the agricultural streptomycin, and 6% The relative control efficacy of carbendazim and 50% of thiobacillus was between 60% and 70%, while the control effect of 50% carbendazim was the worst, only 22.9%. This shows that 20% of Longkei (thiaca copper), 77% of copper, 3% Kechuang, 10 million units of agricultural streptomycin and other agents can be used in rice in our county.
Summary and discussion: Through the field screening test of rice bacterial rot caused by the above-mentioned seven agents, it can be seen that the copper preparations such as Longkei (copper thiazole) and copper (copper hydroxide) have obvious protective effects. The control efficacy of biocides such as Kezikang (biomycetin) and agricultural streptomycin is also higher than some common drugs. At the same time, through the investigation during the trial, it can be found that the application of these fungicides can significantly delay the onset of the disease, reduce the incidence of the disease, greatly reducing the rate of diseased plants, and thus play a very satisfactory increase in production efficiency. It is promoted in actual production. In the test process and other demonstration experiments, it was found that inorganic copper preparations such as copper (copper hydroxide) of the crown bacterium were applied at high temperatures, and they could cause slight phytotoxicity to rice, so they should be avoided in the high-temperature period. Bacterial base rot of rice should be mainly prevention. It must be applied before the onset of rice, otherwise it will affect the effect. If the rice is applied every 7 to 10 days before transplanting, tillering, and early heading, the effect will be even better.
7. Determination of Thiobacillus Residue in Watermelon by High Performance Liquid Chromatography
Journal of Analytical Testing Vol. 26 No. 5 September 2007
FENXI CESHI XUEBAO (Journal of Instrumental Analysis)
Vol.26 No.5 752-753
Mao Jiangsheng, Deng Ligang, Li Zengmei, Zhao Shancang, Zhao Pingjuan (Food Quality Supervision, Inspection and Test Center, Ministry of Agriculture, Jinan), Jinan, Shandong 250100, China
Abstract : The XAD-7 resin was used for extraction and purification by column chromatography. The determination of thiadiazole, which is the main degradation product of copper thiophene, was established by high performance liquid chromatography. A reversed-phase Symmetry ShieldRP C18 (5um) 250 mm x 4.6 mm separation column was used; the mobile phase was acetonitrile-aqueous solution containing 0.1% acetic acid (volume ratio 12:88); the flow rate was 0.6Ml/min; the UV detection wavelength was 313nm External standard method. The average recovery of samples was 89% to 94%, and the relative standard deviation (RSD) was 0.89%-1.98%. The detection limit was 0.01 mg/kg (S/N=3).
Key words: high performance liquid chromatography; copper thienobacterium; watermelon; residue detection
Key words: High performance liquid chromatography (HPLC); Thiodiazole-copper; Watermelon;
Thiodiazole-copper is a new type of thiazole organic copper bactericide independently developed in China. It was first approved by the Ministry of Agriculture in 2000 for the temporary registration of pesticides. Its chemical name is 2-amino-5-mercapto-1,3,4-thiadiazole copper complex, the main metabolite is thiadidine (AMT), the structure is shown in Figure 1, so this experiment is to determine Thiadiazole residue as a quantitative basis. The drug is highly effective, low-toxic and safe, and it is highly effective in controlling bacterial and fungal diseases of crops. It is effective in controlling watermelon wilt disease. At present, there are no corresponding national and ministerial standards for the detection methods of residues, and there are no reports in foreign countries. Therefore, a method for the determination of copper residues in watermelon has been established in this paper. The establishment of the monitoring system has practical significance for monitoring its use in fruits and vegetables, formulating its maximum residue limit (MRL), and protecting human health. The method has the advantages of simplicity, accuracy, high sensitivity and good repeatability.
The watermelon grown in greenhouses was sprayed with pesticides, then collected into long-term and harvest watermelon samples, and stored frozen at minus 18 degrees before measurement. Samples were treated according to the method of “sample pretreatment and enrichment and purification of thiadiazoleâ€. The copper content of Thiobacillus in the long-term watermelon was calculated to be 0.256~1.078 mg/kg; the copper content in the harvested watermelon was always Not detected. It showed that the degradation rate of copper thienobacterium in watermelon was faster and it was safer for humans.
8. Reversed-phase high performance liquid chromatography for the determination of pesticide residues of copper thiazolybdate in winter jujube
Pesticide 46, No. 8, August 2007 AGR0CHEMCALS Vo1.46.No.8 Aug.2007
Zhao Shancang, Deng Ligang, Zhao Lingjun, Mao Jiangsheng, Zhao Pingjuan (Food Quality Supervision, Inspection and Testing Center, Ministry of Agriculture, Jinan 250100, China; Agricultural Information Center of Jinan, Jinan 250002, China)
Abstract : HPLC method was developed for the determination of copper residues in winter jujube by sodium sulfide hydrolysis, adsorption on Amberlite XAD-7 resin and elution with DMF. The mobile phase was acetonitrile-0.1% aqueous acetic acid (volume ratio l2:88). The experimental results showed that the method has good linearity and precision.
Key words: high performance liquid chromatography; copper thiazolybdate; jujube; pesticide residues
Keywords: high performance liquid chromatographic (HPLC); thiodiazole-copper; winter-date;
Thiobacillus copper [2-amino-5-mercapto-1,3,4-thiadiazole copper complex] is a new type of pesticide independently developed by our country. It is a thiazole organic copper fungicide, and it can prevent bacterial diseases in crops. With special effects. At present, there is no limitation on the maximum residue limit of copper in pepper fruit in China, and there is no report on the detection method of copper thiazolyl pesticide residue in winter jujube. To this end, a method for the determination of residual amounts of copper thiazolyl in Dongzao was established. The method is simple, rapid, accurate, highly sensitive, and reproducible.
9, 20% copper thiobacillus suspension agent to prevent ginger rot disease test report
Pesticide Science and Administration, Vol. 25, No. 5, 2006, Pesticide Science and Administration 2005, 26(5)
Lu Hua, Hao Yunjing, Bi Guimei, Duan Chenbo (Plant Protection Station, Laiwu City, Shandong Province, 271100, China; Agricultural Technology Station, Zhaili Town, Laicheng District, Laiwu City, Shandong Province, Laiwu, Shandong 271100, China)
Abstract: Ginger disease is the main disease on ginger, and it is also the biggest obstacle to ginger production. From 2002 to 2004, we used 20% Thiobacillus copper for chemical control tests and different application methods. The results showed that there was a good protection and treatment effect against ginger borer, and the highest control effect was 67.61%. The method of use is to soak the seeds with 500 times copper thiazolyl, and simultaneously irrigate the roots three times with thiazolyl copper 500 times in the growth period, and control them once every 10 days.
Key words: copper thienobacterium; ginger; rot disease; control; trial
Ginger rot, commonly known as ginger borer, is caused by the infection of Pseudomonas solanacearum Smith and is the most common and most harmful disease on ginger. The incidence rate of ginger aphid disease in Shandong Province is 20% to 30%, and the general incidence of land parcels is reduced by 10% to 20%, and more than 50% of them are severe, even out of production. This is a major factor restricting the development of ginger production.
Ginger disease (rot disease) is a bacterial disease. The pathogen is Psetum mongolicum Psetudomonas solanacearum (Smith) Smith. It can infect not only ginger but also solanaceous crops such as tomatoes, eggplants, peppers and potatoes. Pathogens mainly in winter in the roots and soil, generally in the soil can survive for more than 2 years, with the strain of ginger is the main source of primary infection, and can use the ginger to adjust the operation of long-distance transmission. In the onset of ginger fields, the soil in which the remnants of diseased plants were left behind caused soil contamination and the diseased soil was also an important source of infection of ginger borer. In addition to diseased ginger and diseased soil, the use of sick or diseased soil fertilizers in ginger fields will also bring the disease to the field. Irrigation water, rainwater, and underground pests are also the vectors that spread germs. Germs are invaded by wounds from roots and stems. They enter the vascular bundles from the parenchyma and rapidly expand, eventually causing the whole plant to dry up.
With the adjustment of industrial structure, the growing area of ​​ginger has been continuously increased, and the number of planting plots has increased year after year. The occurrence of ginger borer disease has also been aggravated and has become the most important disease in ginger production. In order to screen for suitable drugs for controlling ginger acarid, 20% Thiobacillus copper suspension (Loncobacter) produced by Zhejiang Longwan Chemical Co., Ltd. was subjected to a pharmaceutical control experiment.
Because the control effect of irrigating roots with 300 times liquid and irrigating roots with 500 times liquid is almost the same (average control efficiency is 70.61% and 69.13%, respectively), taking into account the cost of pesticides used by farmers, it is recommended to promote the use of 500 times liquid in production. . The method of use is 500 times liquid soaking of dragon's fungus, another dragon's fungus (thiaca copper) 500 times the growth period irrigate 3 times, interval 10 days. However, during the growth period, the pesticide should be used at the beginning of the disease. After soaking and irrigating the roots during the growing period, it was discovered that the dragon's fungus (thiaca copper) had no adverse effects on germination, emergence, and growth of ginger, and was safe to ginger, and the dragon The ginger treated with Gram-negative copper (Cu-Bacillus spp.) emerged neatly after planting. According to the survey, the uniformity of emergence of ginger in the treated area of ​​Longkei (Thiococcus spp.) increased by 8 percentage points compared with the control, and the plants grew robustly and the leaves were dark green. The main stem of the seedlings was 5.7 cm higher than the control. This may be because the ultrafine particles of the dragon bacteria are easily absorbed by ginger and can effectively supplement copper. Has a significant role in promoting growth, but further research needs further research.
Conclusion: The bronchobacillus bronchiseptica has a good protective effect on ginger aphid, and it is recommended to promote it in production. Rhodendron 500 times liquid soaking, while in the growing period 500 times liquid continuous rooting 3 times (10 days interval), but the growth phase of the application should be mastered in the early onset of administration.
10. Effect of Copper Thiobacillus on the Reproduction of Panonychus citri
"South China Fruit Tree" 2OO2 31st Volume 5
Huang Zhendong Yan Desheng Chen Daomao (Zhejiang Institute of Citrus Research, Zhejiang Huangyan 318020)
Key words: Citrus; Fungicide; Thiobacillus; Claw; Reproduction
For a long time, the bactericides used in citrus production in China are mainly inorganic copper preparations based on Bordeaux mixture and benzimidazoles represented by thiophanate. However, the traditional inorganic copper agent Bordeaux has many disadvantages in the use of oranges, such as the occurrence of orange rust, which affects photosynthesis, and can not be mixed with other pesticides and alternate with other pesticides. Etc.; Benzimidazole agents represented by thiophanate, which has been used in recent years, have been resistant to drugs and their efficacy has dropped significantly. There is no need for new pharmaceutical products to replace or alternate use of the above-mentioned agents in production.
In recent years, there have been many new varieties of copper preparations at home and abroad. The evaluation of the application performance of new pesticides can be summarized as the efficacy of the target; the safety of humans, plants, natural enemies and the environment when used; and the non-target diseases Insect mutual interference. According to available data, the patented new product Thiopenthromycin (Loncobacter) has excellent control effects on citrus canker and scab, and it has a wide application prospect in citrus production. However, the effect of the agent on the reproduction of T. citrifolia is not clear, and the author conducted a research on this from 2OOO to 2001.
Conclusions and Discussion: In this study, the influence of the chemical agent on the reproduction of the whole clawed X. The results showed that the LC50 concentration of copper thiazolybdate to quinquefascia gracilis was 506.17 mg/L, and the LC90 concentration was 34 817.69 mg/L. Pharmacological treatment of female nymphs using 667, 333, 167, 83, 42mg / L and other five concentrations, the results found that the survival rate of female adult pupa, two high-concentration treatment inhibited it, three low-concentration treatment has enhancement. In these five concentrations, the difference between treatments did not reach a significant level. The females treated with the above concentrations had their egg production inhibited to varying degrees, but the difference did not reach a significant level. The effect of 400mg/L egg on its hatching had obvious promoting effect in the early stage, and had obvious inhibitory effect at the peak and the end of incubation. On the basis of the above tests, the total population of T. japonica on potted seedlings was treated with the common concentration of the agent (400 mg/L). After 50 days of observation, the difference between the population of insecticides in the pesticide and the control group did not reach the test concentration range. Significant levels.
In conclusion, the results of the study showed that within the range of experimental concentration (400 mg/L), copper thiophene (Loncobacter) did not induce or promote adverse effects on survival and reproduction of C. citrinopileatus.
11. Study on Key Techniques of High Yield Cultivation of Konjak Disease
"Agricultural Science in Anhui" 2004 No.4 Journal of Agricultural Sciences
Zhou D, Yan Shun, Lu Hongxue, Hu Guixiang, Sun Ming, Yu Ziniu (Yangtze University, Jingzhou, Hubei 434025, China; Plant Protection Station of Xianfeng County, Hubei Province; State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University)
Abstract : The author carried out the experiment of konjac fitness training in Xianfeng County, Hubei Province for 3 consecutive years. The konjac pods disinfection, optimal sowing date, shading coverage, and potassium application amount were studied separately. The results showed that the out-of-planting alfalfa was best sterilized three times with 10 million units of streptomycin 1000 times agricultural solution and 20% of locust bacteria (500-fold dilution of bronchobacillus) 500 times; the best sowing date for konjac in mountainous areas with 800-l200m altitude. It is early May. Not only the emergence rate of 99.06%, but also can shorten the konjac before emergence in the soil. Reducing the chance of pathogen infection, the incidence rate is also the lowest; planting konjac at an altitude of 800 to 1200m, the better the shade, the lighter the incidence, and the soil surface coverage can reduce the incidence rate of about 7%; Konjac is a good potassium crop, in the base fertilizer Apply 50% potassium sulfate 450kg/hm2. The best yield increase can increase production by 51.29%.
Keywords :Konjac konjac; seed worm disinfection; chemical control; high yield; cultivation techniques
12. Preliminary report on Shaanxi Ankang's prevention and treatment of konjac soft rot
"Hubei Plant Protection" 2007 No.3Hubei Plant Protection
Cui Ming Zhao Xingxi Zhang Longzhi (Ankang Plant Protection Station, Shaanxi Province)
Abstract : In order to find new effective and low toxic agents for controlling soft rot of konjac, timely guidance of field prevention and control work. The plant protection station of Ankang City, Shaanxi Province, introduced the konjac continuous cropping plot in the Maoba Village of Hehe Township in Hanbin District for the prevention and control experiments.
The test results showed that the control effects of baptizing and dragon's fungus on konjac's soft rot were better, and that baketin was better than that of dragon's fungus when it was controlled once; while it was twice that of dragon's fungus, bacron was better than baxtin (77% of copper hydroxide) ), The two agents can be used interchangeably in the field to prevent germs from developing resistance and improve the control effect. Agricultural streptomycin is commonly used as a medicament for the control of soft rot. It takes a long time to use. In severe years of konjac soft rot and continuous cropping, the control effect is poor. The enemy has a poor effect on the control of konjac soft rot, and should not be promoted in production.
Keywords :Konjac; soft rot disease; new drug; control experiment; copper thiate
13. Occurrence and Control of Tomato Bacterial Wilt in Tianyang County
Yangtze River Vegetables 2007 10
Li Guiyan, Huang Mengxi, Wei Fang, Luo Jiasong, Huang Yanchun, Guo Ding (Agricultural Technology Station, Tianyang County, 533600, China; Headland Agricultural Service Center)
Abstract: The summer and autumn tomatoes are the most important vegetables in the south dish of Tianyang County. According to incomplete statistics, the planting area of ​​the county in the year of 2006 was more than 5000hm2, and the benefit was good. However, in recent years, the occurrence of tomato bacterial wilt is relatively serious, especially in the fall of 2006 occurred in an area of ​​more than 1500hm2, the loss of more than 30%, part of the tomato land harvest or change. To this end, we carried out targeted trials and studies to basically grasp the causes of tomato bacterial wilt in summer and autumn and the prevention and control countermeasures.
Key words: tomato; bacterial wilt; copper thiazolybdate; test; efficacy
14, O. Prevention of cucumber downy mildew by 5% rhubarb methyl ether AS
"Hubei Plant Protection", No. 1, 2009, Volume 111
Luo Wenhui,Gong Dexiang,Huang Wensheng,Dai Helin,Liu Changmin,Guo Ruiguang (Tianzhi Station, Daye City, Hubei Province, Daye 435100, China; Agricultural Technology Service Center, Chengui Town, Daye City, Hubei Province, Daye 435l00)
Abstract: Control of cucumber downy mildew was carried out with 0.5% emodin methylase 300 times, 500 times and 800 times. The conventional pesticides were 72% of urea manganese zinc WP 800 times and 20% of copper thiophene copper SC 500 times. In contrast, the results show that O. The three concentrations of 5% rhubarb methyl ether AS have good control effect on cucumber downy mildew, and the drug efficacy has a long duration, which can be widely used to control cucumber downy mildew. Among them, on the 16th day after the third medication and on the 21st day after the drug, the effect of 20% Thiobacillus (Lonkia) on the control of cucumber downy mildew can reach about 70%.
Key words: rhubarb; copper thienobacterium; control; downy mildew; test
15, Several agents to control citrus peptic ulcer efficacy test
"Anhui Agricultural Science Bulletin" 2008 22nd Anhui Agn. Sci. Bul1.2008,14(22)
PENG Wei-bin, XU Shan-zhong, ZENG Xiao-hua, GAO Xiu-juan, HU Ming, XIAO Gong-e (Taihe County Meteorological Bureau, Taihe 343700, Jiangxi Province; Taihe county plant protection phytosanitary station; Taihe county agricultural technology promotion center)
Abstract: In this paper, several agents were used to control citrus canker disease. It was concluded that dragon's bacillus (thiaca copper), Garenon (Chunleiwang copper), streptomycin for agriculture, and bactericide (53.8% DP) were available. In a large area of ​​control of citrus canker disease, control should be used alternately.
Key words: citrus; ulcer disease; drug test; Taihe county
In recent years, citrus canker disease in Taihe County has been severe, with an annual bias towards re-emergence, which has caused heavy losses to citrus production in the county. At present, there are many kinds of agents for the control of citrus canker in the market, and the quality is uneven. In order to explore the prevention and treatment of citrus canker disease, and provide a basis for large-scale promotion, we conducted a pharmacy test on red tangerine in 2008. The experimental medicaments Dragon's Bacteria (thiacax), Garenon (Chunleiwang's copper), agricultural streptomycin, 53.8% kill (copper hydroxide DP), Yeqingshuang (Yetzol) can be used to control citrus canker disease The control effects were 87.24%, 85.01%, 81.54%, 80.41%, 73.59%, respectively. Tests on the control of citrus canker by several agents have led to the conclusion that, when a large area is used, the use of dragon's fungus (thiacax), Garenon, and streptomycin for agriculture can be promoted and used alternately. Concentration can be designed according to the experimental concentration. Spraying the first drug when the shoot length is 1.6-3.3 cm, spraying the second drug after 10 days, can effectively control the hazard of citrus canker.
16. Efficacy trials of different agents in the field of controlling bacterial leaf streak in rice
《Modern Agricultural Science and Technology》2008年16期
Zhong Weiyun, Wang Guobing, Ge Zezhi, Ye Zhizhen (Jiangsu Plant Protection Station of Jiangsu Province, Jiangsu Handan 211700; Agricultural Technology Station of Huanghuatang Town, Jingxian County)
Abstract : In order to select the best agent for the control of bacterial leaf streak in rice, 8% bacteriophage, 36% bacteriostatic WP, 20% bronchobacilli suspension, 20% Ye Qingshuang (Yetzolium) wettable powder 4 kinds of agents according to the type of drug and the number of times for field efficacy comparison test. The results showed that the control efficacy of each drug treatment was twice higher than that of drug treatment.
Key words: Rice; Bacterial streak; Chemical control; Control effect
Bacterial streak of rice is a national quarantine disease. In my county began investigation in 1991, after years of governance, to 1998 basically disappeared. In recent years, due to the liberalization of the seed market, hybrid rice varieties that have not undergone quarantine or quarantine procedures have flowed from Anhui, Hubei, Zhejiang, and Sichuan into the county through various means, making bacterial bacterial leaf streak disease nearly 2 years old. My county has resurrected. Once again, it has become one of the major diseases of rice and there is a tendency to spread and spread.
From the perspective of investigating and controlling the effects, different agents control bacterial streak of rice. The control efficacy of each drug used twice was significantly higher than that of one drug application. However, the control of rice bacterial streak disease, relying only on Daoda 1-2 times the drug can not achieve the desired control effect. Comprehensive control measures should be taken, such as strengthening quarantine to prevent the transmission of pathogens; changing crops for rotation; selecting resistant varieties; soaking seeds with pesticides when sowing; and grasping the period of effective prevention and treatment to increase the number of medications.
17ã€Comparative experiment of efficacy of six kinds of chemical agents in preventing and controlling cucumber bacterial leaf spot disease in field
Anhui Agricultural Science and Technology, Vol. 14, No. 15, 2008, Anhui A. Sci. Bul1.2008,14(15)
Zhang Jun Liu Jirong (Institute of Agricultural Comprehensive Service, Hongwei Township, Wuwei County, Anhui Wuwei 238351; Agricultural Comprehensive Service Center, Gaogou Town, Wuwei County, Anhui Province, China 238326)
Abstract : 20% bronchobacillus spp. SC500-fold, 57.6% bacterium-clearing dry granules 1000-fold, 72% agro-streptomycin SP4000-fold, 20% ronococcus sc+72 % Contrast Trial of Control of Cucumber Bacterial Kerb Disease with % Streptomycin Sulfate SP2000, 57.6% Pellet Clear Granules, 72% Streptomycin Sulfate SP2000, 60% Chlorothalonil wP500x The results showed that the 7th day after the third spray, the effect of preventing and treating cucumber bacterial leaf spot was 71.47%, 72.23%, 69.81%, 75.28%, 80.76% and 77.99%, respectively, with 57.6% +72% of agricultural streptomycin sulfate SP2000 times the best treatment.
Keywords :pharmaceutical formula; cucumber; bacterial leaf spot; copper thiazolybdate; efficacy
Pseudomonas syringae is an important disease in the production of cucumber in our county. It has a wide range of incidence and a high prevalence rate. The leaves, fruits, and cranberries of cucumbers can all be infected. When they are severe, the leaves are dry and the fruits are rotted, resulting in reduced yields. The incidence of field crops is generally reduced by 10% to 20%, and the serious disease loss rate can reach over 40%. It is safe for cucumber production. The threat is great.
Conclusions and discussion: (1) The six agents (recipes) in the test can significantly reduce the disease index of cucumber bacterial leaf spot and control the epidemic of diseases. At the test dose, concentration and conditions, 57.6% of the bacteria were used to clear the granules + 72% of the agricultural streptomycin sulfate SP2000, 60% of the WP 500x, 20% of the bronchobacillus ) SC + 72% agricultural streptomycin sulfate SP2000 times the control effect is better. (2) Cucumber bacterial angular leaf spot is a kind of bacterial disease caused by Pseudomonas infestation. The old ward should be sprayed at the early stage of disease on the appropriate conditions for disease prevention. When the disease enters the epidemic period, it should increase the dosage or increase the number of medications. In order to prevent the germs from producing anti-(drug resistance) anti-drug agents, it is advisable to use rotating drugs or compounding of several agents or use of compounding agents in order to improve the control effect. (3) Cucumber bacterial keratoses and other diseases such as cucumber downy mildew, gray mold, etc., are often mixed at the same time. The broad spectrum of Guanyin clear, chlorothalonil, thiobacillus copper (Lactococcus), etc. can be used for control. Pharmacy, with "a drug and more treatment," improve the prevention and treatment benefits. (Xiong XING Ping collects)
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