Application of chinaberry seeds in prevention and treatment of bradysia odoriphaga larvae and prevention and treatment method
A technology of A. leek and A. neem, which is applied to the application field of A. sylvatica in preventing and treating larvae of A. leek, can solve the problems of high cost, complicated formula and the like, so as to reduce residues, ensure safety, and avoid rotation. effect used
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[0042] 1.1 Drugs to be tested
[0043] Neem is collected under the Neem tree that grows on the campus of Linyi University. After drying, use a pulverizer to pulverize the neem seeds, and put them in sealed bags for later use. 50% phoxim EC was purchased from Shandong Huayang Science and Technology Co., Ltd., and its main component was o, o-diethyl-o-phenylacetonitrile ketoxime) phosphorothioate.
[0044] 1.2 Determination of insect resistance index
[0045] Prepare several pots of the above-mentioned varieties of leeks in pots, with a diameter of 15 cm. 15 trees of each variety were cultivated in insect-proof nets.
[0046] Insert the end-3rd instar larvae of leek maggots into the surface soil layer close to the pseudostem of leek, 20 larvae per pot. Place it for 24 hours after being inoculated to allow it to drill into the underground part of the leek, and plant it under the same growth environment, water and fertilizer conditions, and set 3 repetitions. Related indicato...
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