Bio Enzyme, Waste Water Treatment, Membrane manufacturer / supplier in China, offering Bti Lavicide- Effective Control Mosquito Larvae, Fungus Gnat and Black Flies - Bacillus Thuringiensis Israelensis, Ready to Ship 1200itu/Mg Bti Mosquito Larvae Killer High Luring Microbial Insecticide, Mosquito Larvicide Block / Safe Biodegradable Kill Larvae in Stagnant Water / Bacillus Thuringiensis Israelensis and so on.