Complex herbicide for wheat after germination

Abstract

The invention relates to the field of pesticides, and particularly relates to a complex herbicide for wheat after germination. The complex herbicide comprises a weeding effective component composed of traloxydim and mesosulfuron; in the weeding effective component, the weight ratio of traloxydim to mesosulfuron is (10-60) to (1-20). The herbicide disclosed by the invention is significant in effect; compared with single dosages of traloxydim and mesosulfuron, the preparation is relatively friendly to environment, is unlikely to be on fire in the transportation process, relatively safe, low in dosage, low in cost, safe to field crops, and obvious in fast-acting property; the control effect, the weed control effect on fresh weight and the comprehensive fresh weight control effect on monocotyledonous weeds and dicotyledon weeds in the field are improved; the weeds in the overall growth period of the crops can be prevented and killed by once pesticide application; and the complex herbicide is safe to next-stubble crops, especially has special effects on resistant weeds, namely aegilops tauschii and brome in North China, and is a relatively ideal herbicide for treatment of stems and leaves of wheat after germination at present.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a post-emergence compound herbicide for wheat. Background technique [0002] Salmazone, chemical name is 2-[1-(ethoxyimino)propyl]-3-hydroxy-5-(2,4,6-trimethylphenyl)cyclohex-2-enone, molecular formula C20H27NO3 , with a molecular weight of 329.43, a highly selective herbicide. It has systemic conduction function and is used for controlling various grass weeds in barley and wheat fields. After foliar application, it is quickly absorbed and transferred to the whole plant, and the weeds turn green and then die. The general spraying amount is 150-350g active ingredient / hm2. The dosage for controlling wild oats is 200-350g / hm2, and it is effective from the early growth stage to the leaf separation stage and jointing stage. [0003] Methylsulfuron-methyl, methyl-2[3-(4,6-=methoxypyrimidin-2-yl)-ureidosulfonyl l-4-methanesulfonylaminobenzoate. Molecular formula: C17H21N5O9S2 Molecular we...

AI Technical Summary

Problems solved by technology

[0004] At present, the main herbicides used to control weeds in wheat fields are oxafluzone, tribenuron-methyl, fenoxaprop-ethyl, methylsulfuron-methyl, thiasulfuron-methyl, isoproturon, etc. oxafluzone is water-dispersible granule Single agent (commonly available in the market 40% oxafluzone), Mesosulfuron-methyl is used as a herbicide in wheat fields with a single agent of oil suspension (commonly available in the market 2%-3% Mesosulfuron), but due to long-term use , the resistance is improved, resulting in a large amount of medication, causing pollution to the environment, and increasing the cost of pesticide application

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