Coconut Tree Infected by Bugs

Question

Our coconut bearing tree is now infected by what the local farmer says is insects (moth or bugs), leaving larva to eat the sap of our trees and turning the healthy green leaf yellow. The only way our local farmer teaches is to cut down the tree and burn the wood to avoid infecting neighboring trees. May I know from an expert on how to treat or save our coconut tree besides cutting and burning them? What chemical to use or is there another more organic method you can share to save our trees?

Answer 1

Most moths and their larva can be killed either by using Bt or neem oil. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm, https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm