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A kind of herbicidal composition containing tetramfen and cyhalofop-ethyl

A technology of tetraconazole and herbicidal composition, applied in the directions of herbicides, algaecides, biocides, animal repellents, etc., and can solve the mixing and application of tetraconazole and cyhalofop-butyl There are no problems such as reports, to achieve the effect of reducing adverse effects, reducing drug costs, huge economic and social benefits

Active Publication Date: 2016-09-14
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When tetramclomide and cyhalofop-ethyl are used alone, there are certain defects and limitations
[0008] There is no report on the mixing and application of tetrafenac and cyhalofop-ethyl

Method used

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  • A kind of herbicidal composition containing tetramfen and cyhalofop-ethyl
  • A kind of herbicidal composition containing tetramfen and cyhalofop-ethyl
  • A kind of herbicidal composition containing tetramfen and cyhalofop-ethyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Determination of the joint effect of tetramfen and cyhalofop-ethyl mixture on weeds in paddy fields.

[0025] Test material: Stellaria media (L.) Cyrillus] (seeds collected and preserved in the field). Barnyardgrass [Echinochloa crusgalli (L.) Beaw Setaria] (seeds collected in the field and preserved).

[0026] Test equipment: controllable light incubator; POTTER precision laboratory spray tower; electronic balance (sensitivity 0.1mg); micropipette gun, etc.

[0027] Test method: first weigh a certain quality of 96% tetramethylenetramide technical material and 95% cyhalofop-ester technical material, add acetone to fully dissolve it, dilute it with 0.1% Tween 80 aqueous solution, and prepare single-dose mother solutions respectively. Set a series of proportions according to the purpose of mixing, and set 5 to 7 concentration gradients for each proportion. Select representative sensitive weed seeds according to the single-dose herbicidal spectrum for future use. After ...

Embodiment 2

[0042] Formulation Example 2: 80% tetramifop-cyhalofop-methyl water-dispersible granules.

[0043]

[0044] Dry pulverize, granulate, dry and sieve the above formula according to the proportion to prepare 80% tetramen-cyhalofop-methyl water-dispersible granules.

[0045]This embodiment is used for preventing and eliminating the annual weeds in the dry paddy rice seedling field, and the dosage of 80% tetramfen-cyhalofop-methyl water-dispersible granule is 480g a.i. / ha soil treatment, and the control effect is 97.3% in 10 days after the medicine; 50% For the soil treatment with the wettable powder of tetrafenac at the dosage of 360g a.i. / ha, the control effect was 68.3% 10 days after the application; for the soil treatment with the dosage of 15% cyhalofop-ethyl EC at 120g a.i. / ha, the control effect was 86.3% after the application for 10 days. The synergistic effect of 80% tetramifop-cyhalofop-ethyl water-dispersible granules in controlling annual weeds in rice dry seedling f...

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Abstract

The invention discloses a herbicidal composition containing tetramifop and cyhalofop-ethyl, including common adjuvants, tetramifop and cyhalofop-ethyl, and the quality of tetramifop and cyhalofop-ethyl The ratio of parts is 10:1~1:10, and the better ratio is 3:1. The combination of tetramfen and cyhalofop-ethyl has obvious synergistic effect, and the dosage of active ingredients in the compound drug is more obvious than that used alone reduce. The pesticide composition of tetramclofen and cyhalofop-ethyl is suitable for the early sowing stage of rice dry seedling field, and the annual weeds are not unearthed, and can be adopted by spraying or poisonous soil method. The composition of the invention is suitable for annual weeds in rice seedling raising fields.

Description

technical field [0001] The herbicidal composition involved in the present invention is used for controlling annual weeds in dry paddy rice seedling raising fields with tetramifen and cyhalofop-ethyl as active ingredients. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. At the same time, when weeds occur, the grass phase is complex, not only annual and perennial weeds are mixed, herbs, vines and shrubs are mixed, but also the emergence of weeds is uneven, and the seeds, young and old weeds are staggered, so the herbicide species alone When used, all will show some defects and limitations. [0003] Tetrazol is an oxime ester compound, a broad-spectrum selective post-emergence herbicide. The mechanism of action is similar to that of sulfonylurea and imidazolone herbicides, both of which are acetolac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/38A01P13/00A01N39/04
Inventor 朱刚王贵新刘鹏冷忠国陈佛祥王礼文张志伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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