nematocide

Asparagusic acid 是芦笋植物中的一种含硫气味成分，是植物生长抑制剂，具有抗寄生虫作用。

Milbemycin A4, a distinguished member of the macrocyclic lactones family featuring a unique spiroketal group, is derived from the fermentation of the soil bacterium Streptomyces hygroscopicus subsp. aureolacrimosus. It acts by enhancing the opening of glutamate and GABA-gated chloride channels, rendering it effective as both a nematocide and insecticide.