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Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof

A technology of fluroxypyr and fluroxypyr, which is applied in the field of pesticide compositions for the control of broad-leaved weeds in wheat fields, can solve the problems of affecting the speed of drug effect, plant death, and slow drug effect , to achieve the effect of low cost, wide herbicidal spectrum, quick effect and long-lasting effect

Active Publication Date: 2011-11-16
YONGNONG BIOSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Temperature has no effect on the final effect of weeding, but affects the speed of its efficacy
Generally, when the temperature is low, the drug effect is slow, and the plant will stop growing after poisoning, but it will not die immediately; the plant will die soon after the temperature rises.

Method used

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  • Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof
  • Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof
  • Composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In order to verify the herbicidal effect of different ratios of fluroxypyr and fluroxyfen on broad-leaved weeds in wheat fields, different ratios of fluroxypyr and fluroxyfen were used to control broad-leaved weeds in wheat fields. Indoor activity determination of the above-mentioned indoor activity, according to the weight percentage in the table, be made into corresponding concentration, carry out indoor herbicide test, to measure fresh weight control effect (E 0 ), the test results are reported as follows:

[0027] Determination method: This test adopts the greenhouse potting method to study the herbicidal activity of fluroxypyr and acifluorfen in different proportions on broad-leaved weeds in wheat fields. It has higher herbicidal activity against the five tested weeds, and its quick-acting and control effects are also significantly higher than that of fluroxypyr and acifluorfen single agent. The analysis of the combined effects of the two showed that the combined ...

Embodiment 2

[0033] 18% fluroxypyr acetic acid fluroxyfen wetting powder

[0034]

[0035] The additives include dispersants, wetting agents, disintegrants, binders, fillers and the like. After the above-mentioned raw materials are uniformly mixed in a double-helix conical mixer, they are pulverized by a jet mill to make a powder-shaped compound pesticide composition containing fluroxypyroxyacetic acid and aciflufen, which is aimed at broad-leaved weeds in wheat fields. In the field efficacy test of weed control, the control effect reached more than 95% 15 days after the application (see Table 2).

[0036] It can be seen from the results that the 18% fluroxypyr acetic acid-fluroxyfen wettable powder is better than the 10% fluroxyfen EC in controlling broad-leaved weeds in wheat fields in quick effect and control effect.

Embodiment 3

[0038] 46% Isooctyl Fluroxypyr Acetate·Aciflufen Water Dispersible Granules

[0039] Isooctyl fluroxypyr 36% (converted according to molecular weight, 25% based on fluroxyrpyr)

[0040]

[0041] The additives include dispersants, wetting agents, disintegrants, binders, fillers and the like. After the above raw materials are mixed evenly in a double-helix conical mixer, they are ultrafinely pulverized by a jet mill, and an appropriate amount of water is added to be granulated by a granulator. The compound pesticide composition of isooctyl ester and oxyflufen, in the field efficacy test for the control of broad-leaved weeds in wheat fields, the control effect reached more than 95% 15 days after application (see Table 3).

[0042] From the results, it can be seen that 46% fluroxypyr isooctyl-hexafluorfen water-dispersible granule has better quick-acting and control effects on broad-leaved weeds in wheat fields than 10% azufen-hexamethicone EC

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Abstract

The invention discloses a composition of fluroxypyr or ester of fluroxypyr and fluoroglycofen-ethyl, which comprises active ingredients, i.e., the fluroxypyr or the ester of fluroxypyr and the fluoroglycofen-ethyl, wherein the weigh ratio of the fluroxypyr or the ester of fluroxypyr to the fluoroglycofen-ethyl is 5:(1-3); the dosage form of the composition of the fluroxypyr or the ester of fluroxypyr and the fluoroglycofen-ethyl is wettable powder and a water dispersible granule; on the basis of the total weight of the composition, the content of the fluroxypyr or the ester of fluroxypyr is 1-70%, and the content of the fluoroglycofen-ethyl is 1-50%, the content of an additive is 10-98%, and the content of fluroxypyr ester is calculated on the basis of the content of the fluroxypyr. The invention also discloses a preparation method of the wettable powder or the water dispersible granule. The composition is compounded by the fluroxypyr or the ester of fluroxypyr and the fluoroglycofen-ethyl, is low in toxicity, wide in weed killing, quick-acting, good in durable effect and moderate in cost, has high weeding activity on broadleaf weeds, is an ideal pesticide variety for preventing and treating broadleaf leaves in wheat lands, and has the advantages of simplicity in production, convenience and safety in use, pollution-free to environments and the like.

Description

technical field [0001] The invention relates to a pesticide composition for controlling broad-leaved weeds in wheat fields, in particular to a compound pesticide composition containing fluroxypyroxyacetic acid or its ester and fluroxyfen-ethylcarboxylate and a preparation method thereof. Background technique [0002] In recent years, due to the extensive use of various pesticides, the resistance of agricultural weeds has become higher and higher. Grass, Maijiagong, Chenopodium, Humulus, Echinacea, Dawanhua, Commelina. In addition to the weeds described above, there are also flat storage, quince, buckwheat vine, tartary buckwheat, ion grass, mustard, small flower pond mustard, pig's scorpion, bitter vegetable, lettuce, Polygonum sorrel leaves and so on. The hazards are serious all over the country. In the prevention and control of chemical agents, the main use of tribenuron-methyl, thifensulfuron-methyl, chlorsulfuron-methyl, fluoxyfen-methyl, fenoxaprop-ethyl, fluroxypyr, ...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N37/48A01P13/00
Inventor 汪云强秦欣张子翱刘何华
Owner YONGNONG BIOSCI
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