Do you have any clearer photos of the bug?

Then I will take a closer look

If it spins silk, it is diamondback moth

Biological control The use of biological pesticides, such as 600-fold solution of BT emulsion can cause disease and death of diamondback moth larvae, and 600-fold solution of Cabbage Spodoptera exigua nuclear polyhedrosis virus can cause disease and death of diamondback moth larvae.

Using "Hanke 140" 10 to 15 ml spray to control diamondback moth has special effects. It can take effect in 1 to 3 hours, and the control effect can still reach more than 90 in 15 days; generally spray 1 to 2 times You can achieve pest-free vegetable fields.

For your reference

Wish you a happy life

Looking forward to your favorable comments