Current melon fruit pest control book

The diamondback moth (Plutella xylostella) has a phototaxis effect. In the adult stage, an electron-killing moth lamp is set per hectare, which can induce a large number of diamondback moths and reduce the source of insects. (2) Adult moths can also use the attractant of Plutella xylostella to trap and kill adult worms, and 2-3 traps are placed per mu. (3) In the egg hatching peak period of diamondback moth, 5% can be used to prevent and control 1500 grams of emulsifiable concentrate. In the peak period of young larvae, 2.5% vegetable suspension can be used as 1000-1500 times solution, or 5% fipronil suspension. 2500 times the agent, or 10% divided by 2000-2500 times the suspension agent such as alternating spray control. Plutella xylostella perennial, short development period, many generations, frequent use of pesticides, biological control during the promotion of prevention and control, reduce dependence on chemical pesticides, must use chemical pesticides, must be used alternately or mixed use, avoid long-term single use A certain kind of chemical pesticides to avoid or delay the development of drug resistance. Vegetable pods (1) Use the principle that locusts have strong tropism for yellow, yellow plates can be set in the field, coat with oil or other viscous agents to trap and kill locusts; use the principle that locusts have negative tropism towards silver grey and hang in the field. Or cover the silver gray film (5 kg per mu), or hang a silver-gray film strip (10-15 cm wide, 1.5 kg per mu) around the greenhouse to repel the worms, or use a silver-gray shade net or insect guard. The net covers insects. (2) The control of aphids should be applied as soon as possible, and they should be controlled at the stage of spotting. Generally, 70% of LM-dispersible granules 20000-30000 times, or 20% Confodulose suspension 4000 times, or 10% erythror wettable powder 2500 times, or 10% osmotic net wettableness Powder 2500 times, or 25% Aktai water dispersible granules 8000 times, or 10% Dagongchen WP 2500 times, or 3.5% Ruidan Emulsion 800-1000 times, or 5% adak wettable Powder 1500-2000 times, or 1% of chlormethrin 1500-2000 times, or 0.6% extinct EC 1250-1500 times alternating spray control. When spraying, the sprayer should be upwards and focus on the opposite side of the blade. In the adult and larvae at the peak stage of the adult and larvae, we can choose to use 5% Ruijinte suspension 2000 times, or 2.5% dichlorfon 3000 times, or 48% Leosperm emulsion 1000 times, or 40 times. % of the new Nongbao EC 1000 times, or 55% of the frog EC 1500 times, or 52.25% NDF 1500 times, or 10% of the EC 1500-2000 times, or 2.5% TENO 2000 -3000 times, or 2.5% Chromalox 2000-3000 times, or 2.5% Dukang 2000-3000 times, or 20% Greenford Microemulsion 600-800 times, or 3.3% Tintin EC 1,000 times liquid and other alternate spray control. Yellow strips (1) Laying mulches to prevent adults from laying eggs on the roots of crops. (2) For the prevention and control of adult worms, 5% Ruijinte Suspension 2000x, or 2.5% Dichlorethanol 3000x, or 3.5% Ruidan EC 800-1000x, or 25% Panax EC 600- 800 times, or 48% of Looseben EC 1000 times, or 40% of the new Nongpo EC 1000 times, or 55% of the farmer frog EC 1500 times, or 52.25% of farmland EC 1500 times large area spray . The last four agents can also be used to control root larvae of yellow striped flea beetles. Each hole is filled with 150-250 ml, which can kill the larvae near the rhizosphere. In addition, the control of larvae can also be used in 3% of land granules or 3% of granules of 3 to 4 grams of net granules, or 5% of dandan granules of 1.5 to 3 kg. Adults of Spodoptera litura and Spodoptera exigua can be hunted using electronic moth killing lamps or black light lamps or sex attractants or sweet and sour liquid. The suitable period of larval control should be controlled from egg hatching to 3rd instar larvae dispersion. Generally, it is recommended to administer medicine after the sun goes down in the evening, and use a sufficient amount of liquid medicine to evenly spray the leaves and leaves on the back. The medicine should be sprayed directly onto the body and food. On the other hand, contact and stomach poisons go hand in hand to increase the poisonous effect. During the peak period of egg hatching, 5% Cascade Emulsion 2000-2500 times spray can be used for prevention and treatment; Incubation period of young larvae can use 1% Vectar Emulsion 3000-5000 times, or 24% Suspension 2000-2500 times , Or 15% of the suspension agent 3000-3500 times, or 10% Divided 2000-2500 times the suspension agent, or Austrian Green No. 1 suspension 800-1200 times alternating spray control.

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