Pest Archives:
There is a bug that is not picky eaters. Soybeans, corn, peanuts, peppers, grapes and other crops are on its menu, and even weeds are not spared when hungry.
The larval stage bites the leaves and petioles, which also harms the flowers and fruits, and can eat the crops into light rods when they erupt. After the age of 4, it enters the period of binge eating.
It generally sleeps in the grass or soil during the day, and comes out at night to harm crops, so it is commonly known as the night thief.
The main hazard period is from June to October, of which July, August and September are the most seriously harmful.
It is the twill nocturnal moth, which belongs to the lepidopteran nocturnidae.
The identifying features of the twill moth are a pair of triangular spots in the subdoral line from the middle chest to the 9th appendage, with the largest sections 1, 7 and 8.
It is the rainy season, when the twill moth erupts. The high temperature is conducive to the hatching of insect eggs, at 22 ° C, it takes 7 days for eggs to hatch, at 28 ° C 2.5 days for eggs to hatch, and the temperature is high in most areas in summer, so the twill moth hatches quickly. Especially when it rains continuously, but the amount of rain is not very large.
The larvae of the twill moth are generally 6 years old, up to 7-8 years old, and begin to concentrate on a single leaf to feed, and then gradually disperse to the various leaves of the plant. The 4-instar larval stage is the binge eating stage, and the amount of food accounts for more than 90% of the entire larvae, so it is necessary to detect and spray early, and the drug effect is the best in the incubation larval stage.
Key points of control of twill noctus moth:
1. Many of the weeds in the field are the hosts of the twill moth, and weeding can reduce the harm in the field.
2. Because the twill moth likes nocturnal activity, it is advisable to choose the spraying time in the evening.
3. Spraying should be sprayed uniformly on the plant in all directions, and the ground part of the plant base should also be sprayed, so that the pests that fall to the ground can be prevented.
4. Using the phototropism and chemotaxis of adult insects, use black light lamps or sweet and sour solution to trap adult twill moth adults.
5. Prevention and control agents: methyl vitamin salt, avermectin, ethyl polybactericide, chlorantran benzamide, high efficiency cypermethrin, chlorpyrifos tick, insect mite nitrile, indigovirus, etc. Chlorpyrifos should not be used in vegetables.
6, when spraying must remember to add silicone additives, the same agent, plus and do not add are two effects.
Well, the relevant content about the twill moth will be shared with you so much, about the twill moth, if you have a better control plan, you may wish to talk about it.
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