Liriomyza sativae is difficult to prevent and control completely due to its high dietary complexity and harm. It has caused great harm to vegetable production.
Liriomyza sativae harms most of protected vegetables such as legumes, cucumbers, loofahs, tomatoes, eggplants, and open-air vegetables. It is used to prevent and cure Liriomyza sativae Blanco. Among them, the appropriate control of drug use is an important measure for comprehensive prevention and control. The application of biological pesticides in the control of Liriomyza sativae has achieved good results in recent years. The first choice of biopesticides was 0.25% A. elegans 1500 times and 25% diflubenzuron No. 3 suspension agent 1000 times. The effect of the two insecticides was 95%.
The effective ingredient of avermectin is avermectin, and its common name in China is "qi qi." It is an antibiotic produced by the fermentation of microorganisms; it is a nerve signal blocker in most agricultural pests.
Diflubenzuron III is an inhibitor of insect chitin synthase and is an insect growth regulator. The insecticidal mechanism is to inhibit the synthesis of chitin in insects, so that Kunsheng cannot die and die.
There are three main characteristics of the application of A. versicolor and diflubenzuron III biological pesticides in the control of Liriomyza sativae.
1, control effect is good, long residual period. 0.2% A. venetum milk 1500 times or 25% diflubenzuron III 1000 times to prevent and control the Liriomyza sativae, the effect can reach 95% or more, residual effect for 20 days.
2. Safe to natural enemies and safe to the environment. Awei insect clear and diflubenzuron third harm to natural enemies is the ideal agent for comprehensive prevention and treatment. The two drugs have no pollution, low toxicity and low residue to the environment and meet the requirements of producing “harmless†vegetables.
3. For crop safety, in the case of increasing the dose multiple times, the application of these two drugs, most vegetables without injury.
The application of A. avermitilis and Diflubenzuron III in the prevention and control of L.sativatica was conducted in the larval stage, spraying once every 7 days, and spraying 2 to 4 times. The above two agents can be used alone or in alternation. Spray carefully, it is best to add 1000 times the pesticide synergist Lilipin in the liquid to increase the permeability, spreadability and adhesiveness of the drug, so that the efficacy is higher and more lasting.
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