Control methods of beet armyworm

Beet liquid moth, also known as corn armyworm. It occurs all over the country, and it is more serious in a few areas. The method of prevention and control is to trap and kill with black light. Spraying 5% carbaryl powder at larval stage, 1.5 to 2.5 kg per mu, or spraying 50% trichlorfon emulsion 500 times, 75 to 100 kg per mu, has a good effect on larvae.