Plutella xylostella (1) Plutella xylostella has phototaxis. In the adult stage, an electronic moth-killing lamp is set per hectare to trap a large number of Plutella xylostella and reduce the source of insects. (2) Adults can also use the Plutella xylostella sex attractant to trap adult worms, and 2-3 traps per acre. (3) In the peak of the hatching of Plutella xylostella, 5% of the dead gram of emulsifiable concentrate can be used for prevention and treatment; in the peak period of young larvae, 2.5% of the solution can be used for 1000-1500 times of suspension, or 5% of Regent suspension. 2500 times solution, or 10% of the suspension agent 2000-2500 times liquid and other alternating spray control. Plutella xylostella perennial, short development period, many generations, frequent use of pesticides, prevention of biological control during prevention, reducing dependence on chemical pesticides, chemical pesticides must be used alternately or in combination, avoid long-term single use A certain type of chemical pesticide to avoid or delay the development of resistance.
The vegetable meal (1) uses the principle that the aphid has strong tendency to yellow, and can set yellow plate in the field, apply oil or other viscous agent to trap aphids; use the principle that the aphid has negative tendency to silver gray, and hang in the field. Or cover the silver-gray film (5 kg per mu), or hang silver-gray film strips around the greenhouse (10-15 cm wide, 1.5 kg per mu) to repel aphids, or use silver-gray shade nets, pest control The net covers the insects. (2) It is advisable to control the mites as soon as possible and control them in the stage of spotting. Generally, 70% Emerald water dispersible granules 20000-30000 times solution, or 20% Kangfudu suspension agent 4000 times solution, or 10% thousand red wettable powder 2500 times solution, or 10% å¯ å¯ wettability can be selected. Powder 2500 times solution, or 25% Aketai water dispersible granules 8000 times solution, or 10% Dagong WP 2500 times solution, or 3.5% Ruidan emulsifiable concentrate 800-1000 times solution, or 5% Adak WP Powder 1500-2000 times liquid, or 1% insecticidal emulsifiable oil 1500-2000 times liquid, or 0.6% chlorpyrifos EC 1250-1500 times liquid and other alternating spray control. When spraying, the nozzle should be upwards, with the focus on the opposite side of the blade.
In the beginning and the beginning of adult larvae, 猿å¶ç”²,黄守瓜, 5% Regent suspension 2000 times solution, or 2.5% enemy killing emulsifier 3000 times solution, or 48% lesbian emulsifiable concentrate 1000 times solution, or 40 % Xinnongbao emulsifiable concentrate 1000 times solution, or 55% agricultural frog emulsifiable concentrate 1500 times solution, or 52.25% agricultural emulsifiable concentrate 1500 times solution, or 10% emulsified emulsifiable concentrate 1500-2000 times solution, or 2.5% Tiannuo No. 1 emulsifiable concentrate 2000 - 3000 times liquid, or 2.5% Goodol EC 2000-3000 times solution, or 2.5% Da Kang EC 2000-3000 times solution, or 20% Green Defu microemulsion 600-800 times solution, or 3.3% Tianding EC 1000 times liquid and other alternating spray control.
Yellow stripe (1) lays a mulch to prevent adult eggs from laying on the roots of the crop. (2) Control adult, you can choose 5% Ruijinte suspension 2000 times liquid, or 2.5% enemy killing emulsifiable oil 3000 times liquid, or 3.5% Ruidan emulsifiable oil 800-1000 times liquid, or 25% Guangzhi emulsifiable oil 600- 800 times liquid, or 48% lesbian cream 1000 times solution, or 40% Xinnongbao emulsifiable oil 1000 times solution, or 55% agricultural frog emulsifiable oil 1500 times solution, or 52.25% agricultural emulsifiable concentrate 1500 times solution, etc. . The latter four kinds of agents can also be used for root larvae to control yellow larvae, and 150-250 ml per hole can kill larvae near the rhizosphere. In addition, the control of larvae can also be used 3% of Zhengdan granules or 3% of diaper granules 3-4 kg, or 5% of Zidan granules 1.5-3 kg, in the near rhizosphere or acupoint application.
Adults of Spodoptera litura and Spodoptera exigua can be trapped by electronic moth or black light or sexual attractant or sweet and sour liquid. The larvae control period should be controlled before the egg hatching peak to the 3rd instar larvae. Generally, it is recommended to apply the medicine after the sun goes down in the evening. Use the foot liquid to evenly spray the leaf surface and the leaf back. The medicine should be sprayed directly onto the insect body and food. On, touch and kill, stomach poisoning, and enhance the effect of poisoning. At the peak of egg hatching, 5% calorie emulsifiable concentrate 2000-2500 times liquid spray can be used for prevention and control; for the younger larvae, 1% Wakeda emulsifiable concentrate 3000-5000 times liquid or 24% perfect suspending agent 2000-2500 times liquid can be selected. , or 15% suspending agent 3000-3500 times liquid, or 10% to remove the suspension agent 2000-2500 times liquid, or the Austrian green No. 1 suspension agent 800-1200 times liquid and other alternating spray control.
The vegetable meal (1) uses the principle that the aphid has strong tendency to yellow, and can set yellow plate in the field, apply oil or other viscous agent to trap aphids; use the principle that the aphid has negative tendency to silver gray, and hang in the field. Or cover the silver-gray film (5 kg per mu), or hang silver-gray film strips around the greenhouse (10-15 cm wide, 1.5 kg per mu) to repel aphids, or use silver-gray shade nets, pest control The net covers the insects. (2) It is advisable to control the mites as soon as possible and control them in the stage of spotting. Generally, 70% Emerald water dispersible granules 20000-30000 times solution, or 20% Kangfudu suspension agent 4000 times solution, or 10% thousand red wettable powder 2500 times solution, or 10% å¯ å¯ wettability can be selected. Powder 2500 times solution, or 25% Aketai water dispersible granules 8000 times solution, or 10% Dagong WP 2500 times solution, or 3.5% Ruidan emulsifiable concentrate 800-1000 times solution, or 5% Adak WP Powder 1500-2000 times liquid, or 1% insecticidal emulsifiable oil 1500-2000 times liquid, or 0.6% chlorpyrifos EC 1250-1500 times liquid and other alternating spray control. When spraying, the nozzle should be upwards, with the focus on the opposite side of the blade.
In the beginning and the beginning of adult larvae, 猿å¶ç”²,黄守瓜, 5% Regent suspension 2000 times solution, or 2.5% enemy killing emulsifier 3000 times solution, or 48% lesbian emulsifiable concentrate 1000 times solution, or 40 % Xinnongbao emulsifiable concentrate 1000 times solution, or 55% agricultural frog emulsifiable concentrate 1500 times solution, or 52.25% agricultural emulsifiable concentrate 1500 times solution, or 10% emulsified emulsifiable concentrate 1500-2000 times solution, or 2.5% Tiannuo No. 1 emulsifiable concentrate 2000 - 3000 times liquid, or 2.5% Goodol EC 2000-3000 times solution, or 2.5% Da Kang EC 2000-3000 times solution, or 20% Green Defu microemulsion 600-800 times solution, or 3.3% Tianding EC 1000 times liquid and other alternating spray control.
Yellow stripe (1) lays a mulch to prevent adult eggs from laying on the roots of the crop. (2) Control adult, you can choose 5% Ruijinte suspension 2000 times liquid, or 2.5% enemy killing emulsifiable oil 3000 times liquid, or 3.5% Ruidan emulsifiable oil 800-1000 times liquid, or 25% Guangzhi emulsifiable oil 600- 800 times liquid, or 48% lesbian cream 1000 times solution, or 40% Xinnongbao emulsifiable oil 1000 times solution, or 55% agricultural frog emulsifiable oil 1500 times solution, or 52.25% agricultural emulsifiable concentrate 1500 times solution, etc. . The latter four kinds of agents can also be used for root larvae to control yellow larvae, and 150-250 ml per hole can kill larvae near the rhizosphere. In addition, the control of larvae can also be used 3% of Zhengdan granules or 3% of diaper granules 3-4 kg, or 5% of Zidan granules 1.5-3 kg, in the near rhizosphere or acupoint application.
Adults of Spodoptera litura and Spodoptera exigua can be trapped by electronic moth or black light or sexual attractant or sweet and sour liquid. The larvae control period should be controlled before the egg hatching peak to the 3rd instar larvae. Generally, it is recommended to apply the medicine after the sun goes down in the evening. Use the foot liquid to evenly spray the leaf surface and the leaf back. The medicine should be sprayed directly onto the insect body and food. On, touch and kill, stomach poisoning, and enhance the effect of poisoning. At the peak of egg hatching, 5% calorie emulsifiable concentrate 2000-2500 times liquid spray can be used for prevention and control; for the younger larvae, 1% Wakeda emulsifiable concentrate 3000-5000 times liquid or 24% perfect suspending agent 2000-2500 times liquid can be selected. , or 15% suspending agent 3000-3500 times liquid, or 10% to remove the suspension agent 2000-2500 times liquid, or the Austrian green No. 1 suspension agent 800-1200 times liquid and other alternating spray control.
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