The invention relates to the technical field of biological
pesticide, and specifically relates to a composite biological
pesticide, which is composed of the following raw materials: castor-oil
plant powder, rapin, raw ginger, cranesbill, sweet wormwood, common
cnidium fruit,
thunder god
vine, and a synergist. The composite biological
pesticide can kill inspects, and can also be used as a
plant disease prevention agent. The composite biological pesticide has a
control effect of 95% to 100% on
larva of insects with chewing
mouth parts or piercing-sucking
mouth parts if being used as a pesticide, and has a
control effect of 90% to 100% on diseases such as
plant virus disease, rotten
disease, root-rot disease,
wilt disease, scab disease, physiological disease, runt
seedling, root decline, and the like, if being used as a
disease prevention agent. The composite biological broad-spectrum pesticide is prepared from biological products and traditional Chinese herbals, so the pesticide can kill insects, while does not have any side or toxic effect on crops at the same time, people can safely enjoy the crops, and the crops is totally harmless for
human health. Furthermore, the quality of agricultural products is prominently improved at the same time, so the composite biological broad-spectrum pesticide is suitable for vast popularization and application.