Macro photography: leaf - eating insects

As we know, these leaf-eating insects or octocles are thought to be pests and would like to know how to bring them back

I will explain the phenomenon of this particular leaf insect and then explain how to treat it
Leaf - eating insect pests attack plants from the shape of larvae that attack the roots of plants down to the point of dying and dying. The adults eat the leaves and leave only the bones. Serious attacks occur in young plants from the time they grow to age 2 weeks. Leaf - eating insect pests breed by laying eggs. Numerous places are found in the cultivated fields of cucumber, eggplant, melon, gambas, and squash because leaf - eating insect pests are particularly fond of broad-leaved plants.

Now let me explain how to address this leaf-eating insect in a way

The best prevention is that they perform rotation of the crop by not constantly growing the pest's favorite crop. For example, after the gambas you can replace them with chilli or corn plants. Further, by tilling the ground and allowing it to be exposed to the sun for days to kill the eggs and larvae of these insects. This is also effective in suppressing the growth of bacteria and pathogenic mushrooms in the soil. Further precautions can be taken by mixing seeds with nematodes before they are planted such as curater and other types of medicine

This is the only thing I can clear about this post if there are any words that don't fit I'm sorry that I'm a novice in this field