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.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
I. Agricultural control measures:Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
1. Crop rotation. Implement a two-year, three-crop rotation of peanut—wheat, corn (soybean) to reduce the pest population base.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
2. Winter irrigation: After the autumn crop harvest, carry out winter irrigation. The greater the water volume, the higher the mortality rate of white grubs.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
3. Fertilization: Since white grubs can live in humus, homemade organic fertilizer must be thoroughly decomposed.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/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, thereby reducing damage.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/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.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
II. Chemical control:Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/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 applied to the field during rotary tillage, resulting in excellent control efficacy.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
III. Physical control measures:Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
1. Hang electronic insect-killing lamps: From early June to early September each year, hang variable-frequency electronic insect-killing lamps (40 mu per lamp), and turn on the lamps every evening to trap and kill adult insects.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/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, based on 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 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 8-10 times diluted omethoate with a hemp brush. Since omethoate has systemic, stomach-poison, and contact-killing effects, and has a relatively long residual efficacy, the control effect is good.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
3. Planting castor: Plant castor around the field to trap and kill adult scarab beetles, causing them to become paralyzed and then killing them in a centralized manner.Artikel berasal dariFOFCC-http://fofcc.org.cn/ms/11311/
