Uniconazole and trifluralin-containing pesticide combination serving as tobacco suckercide

Abstract

The invention relates to a pesticide combination which contains an effective amount of uniconazole and trifluralin for synergism and is used for a tobacco suckercide. The weight ratio of the uniconazole to the trifluralin is 1:60-10:20, preferably, the weight ratio of the uniconazole to the trifluralin is 1:50-5:20, more preferably, the weight ratio of the uniconazole to the trifluralin is 2:40-3:50, and most preferably, the weight ratio of the uniconazole to the trifluralin is 2:40-2:45. A field pesticide effect experiment shows that under the condition of the same total using amount, the inhibition effect of the uniconazole and trifluralin-containing pesticide combination is obviously better than that of pharmaceutical single dosage, such as 480g / L of trifluralin emulsifiable concentrates, 5 percent of uniconazole wettable powder and 12.5 percent of flumetralin emulsion after being applied for 2, 4 and 6 weeks; and particularly, the butting inhibition effect of 45 percent of trifluralin*uniconazole water emulsion is up to 95.01 percent. The butting inhibition effect is the same as that of manual bud picking, but compared with a manual bud-picking plant, a plant applied with the pesticide combination is low in nutrition loss and low in labor cost. The invention also relates to a method for inhibiting growth of tobacco axillary buds by using a medicinal dosage and application of the medicinal dosage.

Description

technical field [0001] The invention relates to a synergistic pesticide composition comprising uniconazole and trifluralin. The composition is used as a tobacco bud suppressant. It belongs to the technical field of plant protection. Background technique: [0002] Trifluralin, chemical name: 2,6-dinitro-N,N-dipropyl-4-trifluoromethylaniline; structural formula: [0003] [0004] Molecular formula: C 13 h 16 f 3 N 3 o 4 , with a molecular weight of 335.3 [0005] Toxicity: Low toxicity to humans and animals. Toxicity LD50 (mg / kg) acute oral administration in rats is greater than 10,000; acute percutaneous administration in rabbits is greater than 20,000. Low toxicity to birds, high toxicity to fish. [0006] Physical and chemical properties: orange crystals, melting point, original drug 43°C-47.5°C, boiling point 139°C-140°C, density 1.36g / cm3 (22°C). Solubility in water at 25°C: 0.184g / L at pH5, 0.221g / L at pH7, and 0.189g / L at pH9; solubility in acetone, chloro...

AI Technical Summary

Problems solved by technology

[0021] Another object of the present invention is to use the pesticide composition to inhibit the growth of tobacco axillary buds, and overcome the shortcomings of existing bud inhibitors that pollute the environment, store and transport.

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