The juice of tomato plants is mainly used to suck the sap of tomato plants. Generally, they are fed on the back of the leaves, and some white spots often appear on the leaves, causing poor plant growth and development. At the same time, virus diseases are transmitted on the damaged plants. This indirect damage has even surpassed the harm itself.
[Control methods]
(1) Clean up the growth environment of the plants, and burn the leaves and leaves of the remaining plants in a concentrated manner; bury them deeply; in the seedling stage, pest control is required to cover the insect nets.
(2) silver gray film flooding. In the vegetable field can be set between the silver gray film, can also play anti-mite effect.
(3) Chemicals prevention and control As far as possible, choose pesticides that have the triple functions of contact toxicity, internal absorption and fumigation. Use 50% WP 2000-3000 times, 25% deltamethrin 3000 times, 40% Dimethoate 1000 to avoid fogging. -2000 times liquid and other prevention.
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