Corn stickworm control technology

Corn stickworm control technology

1. Agricultural control (1) Remove corn stalks from the field and use it as a fuel or stacking compost to kill insects that lurk in the culms. Rational rotation, not continuous cropping, shallow ploughing, reducing the base number of adults. (2) mining, ovulation. During the oviposition period of the armyworm, according to the oviposition characteristics of adults, continuous oviposition or removal of egg mass in the field can significantly reduce the amount of eggs and larvae. (3) Artificial killing and weeding eliminate larvae. In the period of armyworm larvae, weeds and weeds can be used to turn weeds and larvae under the soil to kill larvae. At the same time, it can also reduce field humidity and increase larval mortality.

(2) Biological control (1) Putting in red eyes, using natural enemies to prevent and control, and (2) applying biological pesticide Beauveria bassiana for prevention and treatment can significantly reduce the damage.

3, physical control (1) trapping adult. The chemotaxis of adults was used to kill with black light; the sweet and sour liquid was used to trap adult insects, and the liquor, water, sugar, and vinegar were taken as a ratio of 1:2:3:4, a small amount of trichlorfon was added, and the attractant was added. In the basin, each evening on the ground, the distance between the fields is 1 meter. In the morning, the urinal pots are collected and capped to prevent evaporation. 2 to 3 days plus a lure, 5 days for a lure. (2) Grass seduce eggs. The straw was bundled loosely into two small, three-inch-long farms and inserted in corn or rice fields above the plants. 5 to 7 days for a change, replaced the grass to burn, the sweet and sour liquid sprayed on the grass to better effect. In the vicinity of the saccharin pots and grass handles that attract moths, seduce eggs, and spray medicine once every 7 days, the larvae hatched from the eggs produced are killed.

4, chemical prevention and control attention to control must be in control of the larvae before the third instar, the application of the morning is appropriate, focusing on spraying the upper part of the plant.

2.5% Lambda-cyhalothrin 40-80ml/mu, 5% Lambda-cyhalothrin 12-18g/mu, 20% oxothiomethomone Emulsion 80-100g/mu, 48% chlorpyrifos (Les This) EC 30-40ml/mu, watering 40-50kg uniform spray.

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