Abstract: The present invention discloses a pesticide composition for controlling wheat crown rot, comprising prothioconazole and imazalil, and the mass ratio of the prothioconazole to the imazalil is (10-20):1, 1:1 or 1:(10-20). Compared with a single pesticide, the composition of the present invention has an obvious synergistic effect on wheat crown rot, obviously improves the control effect and significantly reduces the pesticide cost; can slow down the resistance of wheat crown rot to the pesticide and prolong the service life of the pesticide; has both quick acting effect and long acting effect on wheat crown rot; can greatly reduce the field application amount and effectively reduce environmental pollution and pesticide residues; and reduces toxicity to other non-target organisms.

Abstract: The present disclosure provides a pyraclostrobin microcapsule based on sodium alginate, which is prepared by mixing pyraclostrobin original drug dissolved in ethyl acetate, 1% aqueous sodium alginate solution, and 5% aqueous calcium carbonate solution at 25° C., and mixing the mixed solution with liquid paraffin containing 10% emulsifier A-110, maintaining a shear rate of 1000 r/min to emulsify for 10 min; using 87.5 mmol/L glacial acetic acid to reduce the pH of the mixed phase, such that the cross-linking reaction between ions can be formed into microcapsules; finally using pH 4.5 acetate buffer to wash and separate the microcapsule slurry, and then centrifuging and freeze-drying to prepare the pyraclostrobin SA microcapsules. The microcapsules prepared by the present disclosure have excellent formulation performance and can be used for the control of Fusarium pseudograminearum.

Abstract: The present disclosure provides a pyraclostrobin microcapsule based on sodium alginate, which is prepared by mixing pyraclostrobin original drug dissolved in ethyl acetate, 1% aqueous sodium alginate solution, and 5% aqueous calcium carbonate solution at 25° C., and mixing the mixed solution with liquid paraffin containing 10% emulsifier A-110, maintaining a shear rate of 1000 r/min to emulsify for 10 min; using 87.5 mmol/L glacial acetic acid to reduce the pH of the mixed phase, such that the cross-linking reaction between ions can be formed into microcapsules; finally using pH 4.5 acetate buffer to wash and separate the microcapsule slurry, and then centrifuging and freeze-drying to prepare the pyraclostrobin SA microcapsules. The microcapsules prepared by the present disclosure have excellent formulation performance and can be used for the control of Fusarium pseudograminearum.

Abstract: Disclosed is a pesticide composition for controlling Spodoptera frugiperda. The pesticide includes an auxiliary material, an active ingredient A and an active ingredient B. The active ingredient A is tea saponin, the active ingredient B is chlorantraniliprole or tolfenpyrad, and the mass ratio of the active ingredient A to the active ingredient B is 1-20:20-1. In the present invention, by mixing tea saponin with chlorantraniliprole or tolfenpyrad, a pesticide with certain ratio is prepared to control Spodoptera frugiperda, has the advantages of good effect and low dosage, and can delay the resistance of Spodoptera frugiperda to pesticides.

Abstract: Disclosed is a pesticide composition for controlling Spodoptera frugiperda. The pesticide includes an auxiliary material, an active ingredient A and an active ingredient B. The active ingredient A is tea saponin, the active ingredient B is chlorantraniliprole or tolfenpyrad, and the mass ratio of the active ingredient A to the active ingredient B is 1-20:20-1. In the present invention, by mixing tea saponin with chlorantraniliprole or tolfenpyrad, a pesticide with certain ratio is prepared to control Spodoptera frugiperda, has the advantages of good effect and low dosage, and can delay the resistance of Spodoptera frugiperda to pesticides.