A herbicidal composition containing bentazone and 2,4-dichlorophenoxyacetic acid and its application

A technology of dichlorophenoxyacetic acid and herbicidal composition, applied in the fields of herbicides and pesticides, can solve problems such as use restriction, insufficient herbicidal spectrum, etc., and achieve the effects of improved safety, high herbicidal activity, and reduced use content
CN102265871AInactive Publication Date: 2011-12-07NANJING HUAZHOU PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING HUAZHOU PHARMA
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a herbicidal composition containing bentazone and 2,4-dichlorophenoxyacetic acid. The herbicidal composition uses bentazone and 2,4-dichlorophenoxyacetic acid as main active ingredients. The mass ratio of pine to 2,4-dichlorophenoxyacetic acid is 1-80:1-80. The herbicidal composition of the present invention is applied to post-emergence weeding in wheat and paddy fields, especially for controlling broad-leaved weeds in wheat and paddy fields, and has remarkable effects. Compared with a single dose, the herbicidal composition of the present invention delays weed resistance, has a wide herbicidal spectrum, long duration of action and is safe to wheat and subsequent crops on the premise of improving the efficacy of a single agent.
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Description

technical field

[0001] This patent belongs to the technical field of pesticides, especially the field of herbicides, and relates to a binary compound of bentazone and 2,4-dichlorophenoxyacetic acid. The herbicide composition can be used for post-emergence weeding of wheat. Background technique

[0002] Bentazone, a urea herbicide, chemical name: 3-isopropyl(1H)-benzo-2,1,3-thiadiazin-4-(3H)-one 2,2 di Oxide, its structural formula is:

[0003]

[0004] Benedazone is a contact-type selective post-emergence herbicide, used for stem and leaf treatment at the seedling stage, and works through leaf contact. When used in dry fields, it first penetrates into the chloroplast through the leaf surface to inhibit photosynthesis. The active ingredients are detoxified by metabolizing to weakly active sugar conjugates in tolerant crops, which is safe for crops, and bentazone can be decomposed by microorganisms in the soil 6-18 weeks after application. Control and control pig worms,...

Claims

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