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A herbicide composition and weed-killing technology, applied in the field of pesticides, can solve the problems of weeds in farmland, high pesticide content, and not wide herbicidal spectrum, etc., achieve high control efficiency, improve environmental effects, and reduce costs
Inactive Publication Date: 2018-02-13
ZHEJIANG TIANFENG BIOLOGICAL SCI
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In recent years, due to the large-scale use of some herbicide varieties alone, many weeds have developed resistance
At the same time, when weeds occur, the grass phase is complex, grass weeds, broad-leaved weeds, and sedges are mixed, and the use of a single her
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Embodiment 1
[0017] Example 1: 25% cyhalofop-methyl. bispyribac. rimsulfuron-methyl suspension concentrate.
[0018] 20 parts by weight of cyhalofop-methyl, 4 parts by weight of bispyribac, 1 part by weight of rimsulfuron-methyl, 1 part by weight of wetting agent 500LQ, 3.5 parts by weight of Rhodia dispersant SC, 0.5 parts by weight of xanthan gum Weight, 0.5 parts by weight of sodium benzoate, 5 parts by weight of glycerol, water is added to 100 parts by weight, the above components are mixed with a shearing machine at high speed and sanded by a sand mill to obtain 25% cyanofluoride Grass-like ester. Bispyribac-methyl. Tetrazolium-methyl suspension concentrate.
Embodiment 2
[0019] Formulation example 2: 45% cyhalofop-methyl. bispyribac. rimsulfuron-methyl wettable powder
[0020] 30 parts by weight of cyhalofop-methyl, 10 parts by weight of bisfenpyr, 5 parts by weight of rimsulfuron-methyl, 1.5 parts by weight of wetting agent pulling powder, 6 parts by weight of dispersant D425, 5 parts by weight of white carbon black, light Calcium supplemented to 100 parts by weight. The above components were mixed uniformly and then jet milled to obtain a 45% wettable powder of cyhalofop-methyl, bisfluben, and rimsulfuron-methyl.
[0022] 10 parts by weight of cyhalofop-methyl, 3 parts by weight of bispyribac, 2 parts by weight of rimsulfuron-methyl, 20 parts by weight of bamboo oil emulsifier YUS-110, 5 parts by weight of bamboo oil dispersant EP60P, 1.5 parts by weight Organic bentonite 838F, 0.2 parts by weight of fumed white carbon black, 15 parts by weight of No. 200 solvent naphtha, and 100 parts by weight of methyl oleate, the above components are sheared and mixed at high speed by a shearing machine and carried out by a sand mill. Sand milling to produce 15% cyhalofop-methyl, bispyribac, and rimsulfuron-methyl dispersible oil suspension
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Abstract
The invention discloses a compound weeding composition. The compound weeding composition is prepared from three active components including cyhalofop-butyl, bispyribac-sodium and azimsulfuron, whereinthe mass ratio of the cyhalofop-butyl to the bispyribac-sodium to the azimsulfuron is (5 to 60) to (3 to 50) to (5 to 50); the sum of the mass percent of the three effective components in the composition is 1 percent to 80 percent. The compound weeding composition can be used for preventing and controlling weeds of paddy rice fields and has a remarkable spectrum spreading and synergistic effect;meanwhile, the dosage of the effective components is reduced, the safety on crops is improved and the occurrence and development of pesticide resistance of the weeds, caused by the fact that single pesticide is used, are delayed. The weeding composition disclosed by the invention is applicable to prevention and control of almost grassy weeds and broadleaf weeds in the paddy rice field and especially has a very good prevention effect on weeds including resistant barnyard grass, digitaria chrysoblephara, setaria glauca, duckweed, spirogyra, potamogeton distinctus and the like; the weeding composition has a long lasting period and is safe for paddy rice.
Description
technical field [0001] The invention belongs to the technical field of pesticides, in particular to a compound herbicidal composition. Background technique [0002] Cyhalofop-butyl (Cyhalofop-butyl) is the only aryloxyphenoxypropionic acid herbicide that is highly safe to rice and is a systemic conductive herbicide. Absorbed by the leaves and leaf sheaths of plants, conducted by phloem, accumulated in the meristem area of plants, and inhibits acetyl-CoA carboxylase (ACCase). It is mainly used for the control of grass weeds in rice fields, especially effective for A. chinensis. [0003] Bispyribac-sodium, a broad-spectrum benzoic acid herbicide, is a highly active acetolactate synthase (ALS) inhibitor, which is quickly absorbed through leaves and roots after application, and is quickly transmitted to the entire plant. It prevents cell division by inhibiting the biosynthesis of essential amino acids valine and isoleucine, and inhibits the growth of plant meristems, thereby...
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