Organic food production is the main direction of modern agricultural development. In organic peanut cultivation, the control of white grubs is a key focus in peanut pest and disease management. In recent years, our city has adopted multiple methods in organic peanut cultivation, achieving significant results and ensuring the quality of organic peanuts.文章源自FOFCC-http://fofcc.org.cn/am/11311/
I. Agricultural control measures:文章源自FOFCC-http://fofcc.org.cn/am/11311/
1. Crop rotation. Implement a two-year, three-crop rotation of peanut--wheat, corn (soybean) to reduce the pest population base.文章源自FOFCC-http://fofcc.org.cn/am/11311/
2. Winter irrigation: Conduct winter irrigation after the autumn crop harvest; the greater the water volume, the higher the mortality rate of white grubs.文章源自FOFCC-http://fofcc.org.cn/am/11311/
3. Fertilization: Since white grubs can live in humus, homemade organic fertilizer must be fully decomposed.文章源自FOFCC-http://fofcc.org.cn/am/11311/
4. Late sowing: The sowing period in organic peanut production bases should be appropriately delayed (can be sown around May 1), so that more white grubs mature and move downward to pupate, reducing damage.文章源自FOFCC-http://fofcc.org.cn/am/11311/
5. Manual collection: During peanut harvest and early spring deep plowing, organize manual collection of white grubs to reduce insect density and mitigate damage in the following year.文章源自FOFCC-http://fofcc.org.cn/am/11311/
II. Chemical control:文章源自FOFCC-http://fofcc.org.cn/am/11311/
Before peanut sowing, in combination with seed dressing and fertilization, use 180 g of compound Beauveria bassiana per mu to control white grubs. The specific method of use is: 60 g for seed dressing, and 120 g mixed evenly with organic fertilizer and spread into the field in combination with rotary tillage, achieving excellent control effects.文章源自FOFCC-http://fofcc.org.cn/am/11311/
III. Physical control measures:文章源自FOFCC-http://fofcc.org.cn/am/11311/
1. Hang electronic insect-killing lamps: From early June to early September each year, hang variable-frequency electronic insect-killing lamps (40 mu/lamp), and turn on the lamps every evening to trap and kill adult insects.文章源自FOFCC-http://fofcc.org.cn/am/11311/
2. Unified prevention and control isolation belts: In organic cultivation, poplar trees and other trees are generally planted as isolation belts. After the wheat harvest, according to the habit of adult white grubs (scarab beetles) feeding at night on tall trees such as elm, poplar, and willow, uniformly spray the above tall trees once with 40% omethoate emulsifiable concentrate at 1000 times dilution, or at a height of 1 meter on the trunks of elm and poplar trees, scrape off the old bark and apply omethoate at 8-10 times dilution with a hemp brush. Because omethoate has systemic, stomach-poison, and contact-killing effects, and a relatively long residual period, the control effect is good.文章源自FOFCC-http://fofcc.org.cn/am/11311/
3. Planting castor beans: Plant castor beans around the field to trap and kill adult scarab beetles, causing them to become paralyzed and then killing them in a centralized manner.文章源自FOFCC-http://fofcc.org.cn/am/11311/