The Prevention and Control Techniques of Liriomyza sativae in Greenhouse
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November 10 22:02:55, 2018
1. Strictly handle the shed. In order to prevent L. sativae from being harmed, the front rakes should be thoroughly cleaned and ploughed before the shed to prevent the worms from being shed. For the early autumn and winter planting of colonization, a thorough chemical control should be carried out before the shed. 2. The air outlet cover yarn is blocked to prevent the migration of adult insects. When the air outlet is set in the greenhouse, the insect net should be set at the air outlet. When there is no insect net, ordinary screens can be used instead. The insect nets or screens should be sprayed regularly with pesticides such as beta-cypermethrin. Wait. The gauze curtain also hangs on the door. 3. Hang a yellow insect trap to trap and kill the salt insects. In the initial stage of planting, four 40X25 cm yellow insect traps are hung in each 0.5-mu greenhouse, using the characteristics of the yellowish-spotting of L. sativae, and the results are very good. In the early spring of 2003, in the case of the extremely severe case of Liriomyza sativae in Meng Xiaoyong's greenhouse in our country, seven insect-trapping plates were hung on 0.7 mu of land and combined with chemical control, the development of the pest was quickly controlled. 4. Smoke smokes. After the evening shed, 300 grams of insecticide net smoke agent was used per 0.5 mus of greenhouse, igniting smoke at 3 points and killing all adults and some larvae. 5. Chemical control kills larvae. On the front or back of the leaves of the vegetables, insect tracts were found to be infected with larvae of the American Liriomyza larvae, and 24.5% of the cultivars were used as avermectin, strong rods, and 1.8% of zizurella leaf sprays. These main components were abamectin. Biopesticides are highly permeable and can kill the larvae of Liriomyza sativae that are potentially immersed in the mesophyll. In order to delay the emergence of drug resistance, it can also be used interchangeably with Kung Fu and 4.5% high-efficiency Cypermethrin.