Heterorhabditis Bacteriophora

[Time to grow]

I am looking for a source of three organic garden amendments, two of which to deal with grubs in my raised beds and one as an additive to an aquaponics system. Specifically, some beneficial nematodes (Heterorhabditis Bacteriophora), some Milky Spore, and some soluble kelp powder. I have several raised garden beds with exceptionally rich soil that the grubs just love. I understand the Nematodes and Milky Spore are particularly good at eliminating grubs. These products are readily available in N. America and even other countries of SE Asia but I can't find a supplier in Thailand. Due to the nature of the products being live, it seems importation is complicated.

 

I am not sure how Thai farmers control grubs other than with harmful pesticides but I am open to other methods if anyone knows of a control.