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...

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Problems solved by technology

[0021] Another object of the present invention is to use the pesticide composition to inhibit the growth of tobacco ...

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