In recent years, the large cherry cultivation area in Dalian has reached more than 300,000 mu and has become a famous fruit in the region. Pollution-free cherry production pest prevention principle, based on agriculture and physical control, with biological control as the core; based on the occurrence of pests and diseases to prevent mainly scientific use of chemical agents, effective control of pests and diseases.
First, dormancy period (from early January to early March): 1 winter pruning to remove overwintering pests on branches, cut off pests and branches and stale fruit, scrape branches of upflow gum and various overwhelming parasites, and brushing Lime sulfur. The lime sulfur mixture is roasted in 1 kg of lime, 2 kg of sulfur, and 10 kg of water. 2 to promote wound healing after cutting, avoid flow of glue. Sweep the fallen leaves and fruit in the garden, cut the branches of the pests, and bring them out of the park and burn it. In the early spring, the trees were shaved, the surface of the sick body was turned into the ground, and the overwintering pests under the soil were exposed on the soil surface to reduce the survival rate of overwintering. 3 15-20 days before germination, spray 30% oil stone sulfur microemulsion 800 times solution and 10% chlorinated WP 3000 times solution to control overwintering insect pests such as aphids and scale insects, and perforation and leaf spot. And other leaf diseases. 4 Do a good job of protecting the trees against cold and overwintering. Before freezing, put the antifreeze water on top of the ice and must thoroughly pour enough water to increase the ability to overwinter and build a foundation for the next year's budding; 1-2 years old saplings should be sprayed with antifreeze wax, and tied grass should be used to prevent pumping; Anti-root parts of frozen injury.
Second, the budding period (middle of March to early April): 1 scraping the old skin, concentrated burning. 2 The whole park sprayed 3-5 degrees lime sulfur or 100 times oil oil emulsion to control overwintering roundworm, scale insects and other leaf diseases such as perforation and leaf spot. 3 The scale insects had a heavier garden and piled a 40-cm high sand pile under the trees to prevent them from harming the trees and trapping. The four trees with severe cancers should be rooted and rooted, rooted with 30 times K84, and irrigated 1-3 kg with the amount of liquid according to the age of the tree.
III. Flowering period (from mid-late April to early May): 1 Prevent and control the red-necked longhorned beetle and the golden edge gyptinia. During this period, check the stems in October and find the path of the insects damaged by the longhorn beetle and the grub. Manually extirpate and kill larvae with poisonous or diluted pesticides. 2 Spray 0.3% borax liquid to increase fruit setting rate. 3 Note the prevention and treatment of chafers, artificial capture at flowering time, and spraying with 10% beta-cypermethrin 1500 times after flowering.
IV. Fruit enlargement and maturity (from early May to early July): 1 Pay attention to prevention and treatment of leaf diseases such as perforation and leaf spot, use 600 times of M45 to water and 50% of carbendazim WP. Liquid alternating spray. 2 At this time, it is the incubation period of the winter insects of the scale insects. Observe the precautions and prevent the scale insects from spraying before spraying. The drug used was 20% fenpropathrin 2000 times or 1.8% abamectin 3000 times.
V. Flower bud formation period and new shoot long-term (July to mid-August): 1 If there is rain during this period, it should be sprayed once in 10 minutes with 10% carbendazim 800-1000 times or 75% chlorothalonil Clear 500-600 times liquid or 68.75% fluconazole Mn-Zn (Easy guarantee) water dispersible granules 1000-1500 times. 2 Check the roots, necks, and rough roots of the trees, and find that the root cancer is cut longitudinally with a knife. The distance is 3 mm deep to the xylem, and 50 times the amount of Formamide is applied. The root cancer disease is rooted with 30 times K84. (3) Excavate or liquid injection to kill the longhorned beetle and larvae, and other pests shall take corresponding measures to prevent and control in time. 4 Pay attention to the prevention and control of apple leafhoppers, two-leafhoppers, yellow thorn moths, navy caterpillars, American white moths, leaf roller moths and other pests, with 10% chlorfenapyr (divided) suspension agent 1500 times or avermectin 3000-4000 Double liquid spray.
Sixth, the slow growth period of new shoots (from late August to late September): 1 Adults of big leafhoppers lay eggs on young shoots to cause wounds, which can easily cause flow and draw. Can be coated with white coating agent or frequency vibration killing lamp traps, avermectin or pyrethroid pesticide spray can also be used. 2 Protection of foliage can be sprayed 2-3 times bactericide, use carbendazim, mancozeb, agricultural streptomycin and so on.
VII. Nutrition Storage Period (October): The most important issue in this period is to protect the leaves, prevent early leaf fall, timely watering, prevent drought, clear the orchard, and do a good job of orchard hygiene.
Eight, matters needing attention: 1 full bloom can not be watered, can not spray insecticide, fungicides. 2 Cherry trees are sensitive to organophosphorus pesticides and should be used with caution during growing seasons. 3 Strict implementation of relevant state regulations prohibits the use of highly toxic, high-residue pesticides.
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