| abstract |
The invention discloses a composite insecticidal and acaricidal nano-water agent containing efficient cyhalothrin and chlorpyrifos, which is prepared by taking the efficient cyhalothrin and the chlorpyrifos as active ingredients, a surfactant and water; the efficient cyhalothrin and the chlorpyrifos are 3-50 wt%, 5-20 wt% of surfactant and the balance of water, and the weight ratio of the efficient cyhalothrin to the chlorpyrifos is 20:1-1: 20. The invention utilizes the nano micelle formed by the surfactant to bear the water-insoluble efficient cyhalothrin and chlorpyrifos, and the effective components exist in the nano water agent as nano particles, thereby being beneficial to the attachment, the distribution and the permeation of the nano water agent on a target and being more resistant to rain wash. The two effective components can generate a synergistic effect, can prevent and control pests and mites on crops, and has the advantages of high pest and mite killing speed, long lasting period and obviously higher prevention and control effect than that of a single agent. |