Whole-course biological control method of tobacco diseases and insect pests
A biological control and pest control technology, applied in the field of tobacco pest control, can solve the problems of harming tobacco leaves, harming consumers, and incomplete research, so as to reduce the damage of diseases and insect pests, improve the quality of tobacco leaves, and eliminate pesticide residues.
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Embodiment 1
[0029] A method for the whole process of biological control of tobacco diseases and insect pests, comprising the following steps:
[0030] 1) Seedling stage:
[0031] Use predatory mites to control thrips and tomato spotted wilt virus diseases. The control method is to release predatory mites once every 5 days from the next day of sowing, and release them twice at the seedling stage. The release amount is 4 heads / plant. The release method is to feed The "predatory mite-Acaroid mite-wheat bran" mixture of predatory mites, containing 40 predatory mites / g, is spread around the seedbed and on the seedbed;
[0032] Use Heterochromia and Aphidia persica to control aphids and thrips. The control method is to release once every 5 days and alternately release twice at the seedling stage. The release amount is 2 Heterochromia per 100 plants. Braconids are 2 heads / 10 plants;
[0033] Use the inactivated mycelium of Penicillium, 0.5% chitosan, and 0.5% oligosaccharin to prevent and trea...
Embodiment 2
[0050] A method for the whole process of biological control of tobacco diseases and insect pests, comprising the following steps:
[0051] 1) Seedling stage:
[0052] Use predatory mites to control thrips and tomato spotted wilt virus diseases. The control method is to release predatory mites once every 7 days from the next day of sowing, and release 3 times at the seedling stage, and the release amount is 6 heads / plant. The release method is to feed The "predatory mite-Acaroid mite-wheat bran" mixture of predatory mites, containing 60 predatory mites / g, is spread around the seedbed and on the seedbed;
[0053] Use Heterochromia and Aphidia persicae to control aphids and thrips. The control method is to release once every 7 days, and release 4 times alternately at the seedling stage. The release amount is 3 Heterochromia per 100 plants. Braconids are 3 heads / 10 plants;
[0054] Use Penicillium inactivated mycelium, 0.5% chitosan, and 2% amino-oligosaccharides to prevent and ...
Embodiment 3
[0068] A method for the whole process of biological control of tobacco diseases and insect pests, comprising the following steps:
[0069] 1) Seedling stage:
[0070] Use predatory mites to control thrips and tomato spotted wilt virus diseases. The control method is to release predatory mites once every 6 days from the next day of sowing, and release them twice at the seedling stage. The release amount is 5 heads / plant. The release method is to feed The "predatory mite-Acaroid mite-wheat bran" mixture of predatory mites, containing 50 predatory mites / g, was spread around the seedbed and on the seedbed.
[0071] Use Heterochromia and Aphidia persica to control aphids and thrips. The control method is to release once every 6 days and alternately release 3 times at the seedling stage. The release amount is 2 Heterochromia per 100 plants. Braconids are 3 heads / 10 plants;
[0072] Use the inactivated mycelium of Penicillium, 0.5% chitosan, and 1% oligosaccharin to prevent and tre...
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