... 859.1 Ingredient The purity of B1 is not less than 95 in dry product , B1a is at least 90. Description This product ... Usage The product is an antibiotic agent , which is active against nematodes, insects, mites and the like. lnjection and tablet of the ... formulated as an insecticide and miticide used in agricultulre, which is efficacious against mites,leafminers psylla, diamondback worm, common cabbage ...