Herbicidal composition containing diflufenican and dicamba and application thereof

Abstract

The invention belongs to the field of pesticides, and discloses a herbicidal composition containing diflufenican and dicamba and application thereof. The herbicidal composition comprises the diflufenican and the dicamba serving as main active ingredients, a mass ratio of the diflufenican to the dicamba is 1-65:1-80, and the diflufenican and the dicamba account for 5 to 85 percent of total mass of the herbicidal composition. The herbicidal composition can be used for preparing herbicides for controlling seedling weeds in barley fields and wheat fields, and has an obvious effect when used for preparing herbicides for controlling gramineous weeds and broadleaf weeds in the barley fields and the wheat fields. Compared with single-component herbicides, the herbicidal composition delays the weed resistance, has broad herbicidal spectrums and acts for a long time on the premise of improving herbicide effect, and is safe for barleys, wheat and afterculture crops.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a herbicidal composition, in particular to a herbicidal composition containing diflufenican and dicamba and an application thereof. Background technique [0002] Diflufenican (diflufenican), also known as diflufenican, chemical name: 2,4-dichloro-2-(α,α,α-trichlorofluorom-phenoxy)-3-pyridineanilide, Belonging to pyridine herbicides, its structural diagram is as follows: [0003] [0004] Diflufenamide is a carotenoid biosynthesis inhibitor, which can cause chlorophyll damage and cell rupture, causing plant death. It is a broad-spectrum selective wheat field herbicide with a long residual effect in soil. It is suitable for barley and wheat fields before germination Or post-emergence weeding. Apply 125-250g / ha pre-emergence or post-emergence to wheat and barley fields in autumn to control gramineous and broad-leaved weeds, especially weeds such as pig's weeds, porcini and viola. Howev...

AI Technical Summary

Problems solved by technology

However, because it can only control some broad-leaved weeds, but has no effect on grass weeds, and some broad-leaved weeds are seriously resistant to it, so its use has great limitations

[0008] At present, herbicides in wheat fields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely effectively control the occurrence of weeds in wheat fields. Too long, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops

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