The prevention and control of the ground tiger must be combined with measures such as moth trapping, weeding, pharmacy, and artificial control to effectively control the damage.
Trapping adult worms to kill adult worms is the best way to control the ground tigers, which can greatly reduce the number of first-generation larvae. The method is to use black light and sweet and sour liquid to kill.
Eradication of weeds and weeds is the place where earthworms lay their eggs. Eradication of weeds in the fields, fields and fields along the roads can be promptly eradicated, and they can be taken out of the fields in time for fertilizer treatment to eliminate some eggs or larvae.
The spraying of pesticides was sprayed in the evening with 2.5% deltamethrin EC 2000 times solution or 4.5 days Longbao beta-cypermethrin EC 3500-4000 solution or 50% phoxim EC 1000X solution.
Sprinkle poisonous soil and poisonous sand with 50% phoxim 0.5 mg of water, apply proper amount of water, spray and mix 100 kg of fine soil, or use 1 part of 20% cypermethrin emulsifiable concentrate to mix 2,000 parts of fine sand in the field.
The bait trapping effect on bait traps of larvae older than 4 instar was better. 0.5 kg of 90% trichlorfon is opened with hot water, add about 5 liters of clear water, spray on sauteed oil dregs (it can also be replaced with cottonseed skin). Use 4 to 5 kg of bait per acre and spread it in the evening.
In the case of large worm-age, the irrigated roots were treated with 80% dichlorvos emulsifiable concentrate or 50% phoxim, 0.2 kg of water per mu, and 400 kg of water to irrigate roots, or applied to the control of plant stems.
Artificially catching the damage to the heavier plots, when the seedlings appear in the field, the top soil or wheat straw near the broken seedlings can be picked up early in the morning to kill old larvae.
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