Applications of pesticide dicamba and composition of pesticide dicamba as tobacco bud inhibitor

Abstract

The invention relates to applications of pesticide active ingredient dicamba in inhibiting tobacco axillalry bud growth or in preparing a tobacco bud inhibitor. The invention also discloses a composition comprising another pesticide active component, wherein the pesticide active component is selected from uniconazole, trifluralin, prodiamine, flumetralin, pendimethalin, and butralin; and the weight ratio of dicamba to the pesticide active component ranges from 1:60 to 60:1. The pesticide active component can be made into a soluble liquid preparation, a micron emulsion, a water emulsion preparation, a suspending agent, a water dispersible particle preparation, a microcapsule preparation, a wettable powder, a missible oil, and the like. It is confirmed by experiments that the composition is used for inhibiting bud growth, and bud growth inhibiting effect is excellent, wherein dicamba is taken as the main active ingredient, and the composition is prepared from dicamba, the pesticide active component, and an auxiliary agent; no adverse influence on tobacco leaf chemical composition is caused by application of 40% of dicamba soluble liquid preparation, potassium content is increased, and tobacco leaf quality is improved.

Description

technical field [0001] The invention is a pesticide composition of dicamba and dicamba mixed with one or more other substances, which is used as a bud suppressant for tobacco, and relates to the use of a new type of pesticide plant growth regulator, belonging to plant protection technology field. Background technique [0002] Dicamba: English common name: Dicamba. Structural formula: [0003] [0004] The Chinese aliases are Dicamba and Baicaodi; the chemical name is 3,6-dichloro-2-methoxybenzoic acid. Molecular formula: C 8 h 6 Cl 2 o 3 ;Molecular weight: 221.04. CAS registry number: 1918-00-9. [0005] Dicamba, the original drug is a light yellow crystalline solid, and the pure product is a white crystal. Melting point 114-116°C, flash point 150°C, decomposes at 200°C, relative density 1.57 (25°C), vapor pressure 0.5Pa (100°C). Solubility at 25°C: ethanol 922g / L, isopropanol 760g / L, acetone 810g / L, toluene 130g / L, dichloromethane 260g / L, dioxane 1180g / L, water...

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