Key points for comprehensive prevention and control of apple fruit disease and insect pests

The young fruit period is the most critical period for the prevention and control of apple pests and diseases. This period is mainly for the prevention and control of rotten fruit disease, golden moths, mites, calcium deficiency, prevention of spotted leaf disease, bagging fruit black spot disease, apple Astragalus, apple aphid, leaf roller moth, heartworm, Kang's whitefly and so on. The specific measures include ten aspects.
1. From 7 days to 10 days after the flowering, continuous spraying of 80% must-have WP 800 times to 1000 times or 80% of the large M-45 WP 800 times to 1000 times, once every 10 days , even spray 3 times ~ 4 times, keep the leaves and protect the fruit.
2. After the flower is dropped and before the wheat is harvested, spray 2 times 25% of the chlorfluazuron suspension 1500 times to 2000 times solution, 20% of the chlorpyrifos suspension agent 4000 times solution, or 30% of the moth chlorpyrifos WP 2000 times. , prevention and control of gold moths.
3. Before and after falling flowers is the key period of drug control for hawthorn spider mites. At the end of May and early June, it is the key drug-preventing period for controlling two-spotted spiders (white spiders) and red spiders. It is effective to control red spider and two-spotted spider mites with 9.5% è?¨ è?¨ è?¨ 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000.
4. After spraying 3, 4, and 5 weeks, spray 1 time quick-acting calcium 500 times to 600 times liquid or high-efficiency calcium 500 times to 600 times liquid to prevent calcium deficiency.
5. It is effective to prevent apple jaundice by using 48% lesbian emulsifiable oil 1000 times to 1500 times liquid, 52.25% agricultural emulsifiable concentrate 2000 times to 2500 times liquid, 10% imidacloprid WP 2500 times liquid, etc.
6. Use 20% of the suspending agent 3000 times ~ 4000 times liquid, 48% lesbian emulsifiable oil 1000 times ~ 1500 times liquid, 52.25% agricultural music emulsifiable oil 2000 times ~ 2500 times liquid and 30% Tao Xiaoling emulsifiable oil 1500 times liquid The effect of controlling leaf curling moths is good.
7. From late May to early June, phoxim granules are applied on the ground two or three days after the rain, 2 kg to 2.5 kg per acre, or 48% lesbian emulsifiable concentrate, 0.5 kg per acre, water 200 times to 300 times, prevention and control of wintering peaches and small heartworms.
8. There are apple orchards in the orchard, spraying 48% lesbian emulsifiable oil 1000 times to 1500 times for prevention and control, and preventing apple jaundice.
9. Before the apple bagging, it must be sprayed once with 80% Betley WP 800 times solution, or 80% Dasheng M-45 WP 800 times solution + 48% lesper emulsifiable oil 1000 times to 1500 times solution, or 52.25 %Nongdi music emulsifiable oil 2000 times ~ 2500 times liquid, prevention and control of bagged fruit black spot disease and Kang's whitefly, and prevention of rotten fruit disease, leaf roller moth and so on.
10. When controlling the golden moth, aphid, red spider and two-spotted spider, add pesticide spreading agent or pesticide synergist, which can significantly improve the control effect.
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