How to eliminate black caterpillars

1, pesticide. Using pesticides is a very effective method. It should be said that using pesticides is basically immediate and very effective.

2. Pyrethroid products. In fact, it is better to use pyrethroid drugs, because pyrethroid products can have contact killing effect, and once used, caterpillars can be completely eliminated. When generally using pyrethroids, be sure to see the dosage. You can't use too much, it's also for your own safety.