A: According to experts from the provincial food office, it is necessary to spray and control pesticides according to their habits and growth characteristics. The older larvae of Spodoptera litura and Spodoptera exigua have hiding phenomenon during the day. Therefore, it is advisable to spray and control these pests in the growing season of vegetables. The flowering time of cowpea in summer is from 7 to 10 in the morning, after which the petals are all closed. The early larvae of the bean pods disperse or concentrate the flowers that endanger cowpeas. Spraying should be done before 9 o'clock in the morning. Fei County Mingtao Electronic Co.,Ltd , https://www.yourbeautyassistant.com
Vegetable spraying talks about time
Q: How to prevent vegetable pests from spraying?