Virus disease
Symptoms: mainly fern leaf viral disease, showing a new leaf slender fern leaves, the top buds develop into linear leaves, narrow and long degeneration of leaflets, the middle and lower edge of the leaf roll, the plant dwarfed to varying degrees.
Control methods: (1) Rain-proof cultivation. The shed film is buckled, used as a shade to prevent rain, usually open the top wind and bottom wind ventilation, rainy days close the air outlet. (2) Yellow plates seduce aphids. A piece of wood or fiberboard with a length of 50 cm and a width of 20 cm should be painted with yellow paint, coated with a layer of engine oil, and hung on the top of the plant, 30-40 pieces per mu. (3) Inject 100-fold NS83 virus-inducing agent at the initial flowering stage, or use 5% sputum WP for 400 times, or 0.5% for antitoxic agent 300 times, or 20% botulinum WP at the beginning of disease. 500 times liquid spray, spray 7 to 10 days, even spray 3 to 5 times. (4) Use raw milk or raw soy milk 100 times liquid + spirulina or morpholinium + cloud big 120 or leaflet foliar foliar spray, dwarfing, spray with 1000ppm gibberellin.
2. Leaf mould
Symptoms: mainly damage the leaves. At the beginning of the disease, irregular pale green lesions appeared on the leaves, and then brown moldy layers were formed on the lesions. Yellow lesions often appeared on the front of the leaves, and mildew was also found on severe leaves. Finally, the entire leaf was yellow and curly.
Control methods: spray with 2% Wuyimycin water 200 times, 50% acetaminophen WP 1000 times spray, 7 days, even spray 2 or 3 times.
3. Late blight
Symptoms: Can invade leaves, stems and fruits. On the pathogenesis of the leaves, a sparse white mold layer was formed on the edges of the lesions and the leaves gradually withered. In the adult plant stage, most of the disease developed from the lower leaves. The water-stained, pale green spots in the initial stage gradually turned brown. When the air humidity is high, there is a white mold layer at the junction of the leaves and back.
Control methods: spraying 1% of chlorothalonil powder per kilogram of acre, spraying once every 7 days, or using 72% of Kelu wettable powder 400-600 times, 72% of Kejinling WP 800 times, or 72.2% Preclo 800X liquid spray. Also available 45% chlorothalonil smoke agent, 150 grams per acre, split 5 to 6, lit in the evening, 7 days once, even smoked 3 to 4 times.
4. Gray mold
Symptoms: The main damage tomato flower and young fruit, most of the first infestation of the petals on the fruit and torus and the residual stigma, and then spread to the fruit and stalk, causing the skin to become gray soft rot, later produced a large number of earth gray velvet The moldy layer.
Control methods: In the early stage of disease, old leaves should be promptly beaten to facilitate ventilation between plants and reduce the humidity in the field. Remove diseased leaves, diseases, burned or buried in time to reduce pathogens. Appropriately control watering, prevent flooding, improve ventilation management, and reduce airiness. Chemical control 6.5% per million mu powder per acre per kg spray powder, once in 7 days, even spray 3 to 4 times, or with chlorothalonil smoked shed, 150 grams per acre, split 5 to 6 , ignited in the evening, once in 7 days, even smoked 3 to 4 times. With 65% metalaxyl WP 800 to 1500 times or 50% nellikon wettable powder 1000 times, or 2% Wuyimycin water 100 times spray, 5 to 7 days, even spray 2 to 3 Times.
5. Insect aphids, whitefly, Liriomyza sativa and other insect pests are preferentially used yellow traps, but also can be used 1.8% abamectin emulsifiable concentrate 3000 times, or with 10% imidacloprid wettable powder 1500 times spray, 7 to 10 days once.
Intestinal localization was administered to reduce adverse effects.
Targeted site-specific release:
Two hours in gastric juice will not disintegrate or crack, dissolve within thirty minutes of disintegrating juice, providing a perfect solution for protein and peptide drugs and probiotics.
Enteric coated gelatin hollow capsule is made of gelatin and enteric coating material in gastric juice it will not collapse, but will release in the intestines as a collapse of a target product . It is often used for special packaging of drugs and health cae products which are irritating to the stomach or unstable under acid, or dissolved and effected in the intestine.
Intestinal location administration can improve the efficacy of drugs, reduce the dose and the adverse reaction, brings the convenience to patients. Moreover , it can avoid the degradation of gral protein, polypeptide or health care products and provide the best absorption sites for them.
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