Fruit tree spring "medication bath" is good
In the spring, before and after flowering of fruit trees, it is a good time to control the pests and diseases of fruit trees with drugs. Because, this season, various germs and pests become active after dormancy in winter, and the resistance to drugs is poor, and the leaves are not germinated, unobstructed, and the application is convenient, and the fruit trees will not be phytotoxic. The "medical bath" prevention and treatment should be carried out in time.
First, the prevention and control of fruit trees before flowering
1. Spraying Bamei 5 degree stone sulfur mixture in time to control the rot disease and inhibit the wintering breeding eggs of red spider, which has obvious effects on controlling powdery mildew, leaf curling insects and scale insects. It can also spray 40% Fumei arsenic 100 times solution.
2. Prevention after germination. Orchard sprays 150 to 200 times of 45% crystal sulphur sulphur or spray smog 0.3 sulphur sulphur mixture plus 50% of 1605 emulsifiable concentrate 1000 times, killing more than 90% of red spiders and overwintering in buds Bacterial spores such as powdery mildew and deciduous diseases can also control chafers and aphids.
3. Prevention and control after germination and before flowering. Spray 1500 times 50% of 1605 or 80% dichlorvos 1200-1500 times liquid, enemy kill and 2,500-3000 times liquid of veterinary vinegar pesticides, have obvious control effect on leaf insect pests and rot disease.
Second, the prevention and control of fruit trees after flowering
1. After the flower, you can continue to use 0.3-0.5 Baume sulfur sulphur mixture. Control leaf disease and red spider. It can also spray 2500-3000 times of effort and eliminate sweeping, which can prevent and control red spiders and kill eggs of leaf-feeding insects and heartworms.
2. Within 10-15 days after flowering, spray 1:4:20 Bordeaux mixture, ie 1 kg of copper sulfate, 4 kg of quicklime, 20 kg of clear water or spray 40% carbendazim, 600-800 times of antibacterial solution, can prevent and cure Deciduous diseases, anthracnose and brown spot disease that are prone to rain and high temperatures.
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