After entering the spring, as the temperature gradually rises, the pests and diseases of the fruit trees that are dormant in winter are also active. At this time, strengthening the comprehensive prevention and control of pests and diseases in orchards is the key to prevention and control throughout the year.
First, the prevention and control of fruit trees before flowering
1. Prevention and control of fruit trees in early spring Before the germination, the orchards are weeded, fallen leaves, pests and diseases, scraped off the rough skin, trimmed the dead branches, and then burned or buried deeply to reduce the occurrence of pests and diseases. Secondly, spraying Bamei 5 degree stone sulfur mixture in time can effectively control the spread of rot disease and inhibit the overwintering 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. After germination, the orchard can be sprayed 150-200 times of 45% crystal sulphur mixture or sprayed with 0.3 degree sulphur mixture and 50% of 1605 emulsifiable concentrate 1000 times, which can kill more than 90% of red spiders and Overgrowth in the buds of powdery mildew, defoliation and other bacterial spores, can also control chafers and aphids.
3. The control of the fruit trees after the buds and before the flower spray 1500 times 50% of 1605 or 80% dichlorvos 1200-1500 times liquid, enemy killing and pyrethroid pesticides 2500-3000 times liquid. It has obvious control effects 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 of stone sulfur 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. 10-15 after the flower can be sprayed with Bordeaux mixture (1:4:20 or 1 kg of copper sulfate, 4 kg of quicklime, 20 kg of water) or sprayed with 40% carbendazim, 600-800 times of antibacterial solution, which can effectively prevent and cure Deciduous disease, anthracnose and brown spot disease that are prone to rain and high temperatures.
3. It is strictly forbidden to use acesulfame and dichlorvos within one month after flowering.
First, the prevention and control of fruit trees before flowering
1. Prevention and control of fruit trees in early spring Before the germination, the orchards are weeded, fallen leaves, pests and diseases, scraped off the rough skin, trimmed the dead branches, and then burned or buried deeply to reduce the occurrence of pests and diseases. Secondly, spraying Bamei 5 degree stone sulfur mixture in time can effectively control the spread of rot disease and inhibit the overwintering 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. After germination, the orchard can be sprayed 150-200 times of 45% crystal sulphur mixture or sprayed with 0.3 degree sulphur mixture and 50% of 1605 emulsifiable concentrate 1000 times, which can kill more than 90% of red spiders and Overgrowth in the buds of powdery mildew, defoliation and other bacterial spores, can also control chafers and aphids.
3. The control of the fruit trees after the buds and before the flower spray 1500 times 50% of 1605 or 80% dichlorvos 1200-1500 times liquid, enemy killing and pyrethroid pesticides 2500-3000 times liquid. It has obvious control effects 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 of stone sulfur 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. 10-15 after the flower can be sprayed with Bordeaux mixture (1:4:20 or 1 kg of copper sulfate, 4 kg of quicklime, 20 kg of water) or sprayed with 40% carbendazim, 600-800 times of antibacterial solution, which can effectively prevent and cure Deciduous disease, anthracnose and brown spot disease that are prone to rain and high temperatures.
3. It is strictly forbidden to use acesulfame and dichlorvos within one month after flowering.
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