Corn stickworm control
Injuries caused by armyworm larvae include damage to plants, especially grass family species. The larvae feed on leaf tissue, creating notches and often completely devouring the leaves, leaving only the stems behind. They can also damage corn ears and stalks. When food becomes scarce, the larvae migrate in large swarms and stop feeding after reaching maturity. Armyworms thrive in warm and humid conditions. The first generation typically migrates in late May to early June, followed by the second generation. High temperatures and low humidity are unfavorable for their development. As a long-distance migratory pest, armyworms can travel great distances, making them difficult to control. Control methods include both chemical and biological approaches. During winter wheat harvest, to prevent larvae from moving into corn fields, 2.5% trichlorfon powder is applied around the corn fields near wheat areas, forming a 4-inch-wide treated zone. Before the third instar stage, 15-45 grams per mu of emulsifiable ether emulsion is sprayed with 50 kg of water. Alternatively, 5% chlorpyrifos at 1000-1500 times dilution, 40% dimethoate at 1500-2000 times, or 10% da gongchen at 2000-2500 times can be used. Biological control options are also effective. For instance, Diflubenzuron at 200 ppm has shown over 94.5% efficacy against young larvae without harming natural predators. It is safe for crops and does not pollute the environment, making it an environmentally friendly choice for managing armyworm infestations. Integrated pest management strategies that combine both chemical and biological controls are recommended for optimal results. Regular monitoring and timely intervention are essential to prevent widespread damage. Lactococcus Lactis,Lactococcus Lactis Powder,Lactococcus Lactis Bacteria,Lactococcus Lactis Treatment Biodep Biotechnology Co. ,Ltd. , https://www.biodep.com