| 摘要 |
CHEMICAL FORMULATIONS Water-miscible pesticidal formulations whose average particle size is at most 200 nm include water, oil, a surfactant, and a cosurfactant, wherein either the oil is a pesticide or the formulation comprises a pesticide dissolved in the oil. The pesticide may be a pyrethroid such as cypermethrin or deltamethrin. The formulations can be molecular solutions, micellar solutions or microemulsions (water-in-oil or oil-in-water) and are generally clear. They exhibit improved activity over conventional pesticidal formulations, particularly in the protection of grain, fruit and brassica plants and against insects, mites and/or larvae. The formulations are especially useful in protecting stored grain, for example aginst the lesser grain borer weevil (Rhyzopertha dominica). |
