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Weeding composition containing topramezone

A herbicidal composition and a technology for oxaflutole, applied in the field of pesticides, can solve the problems of high residual amount, high drug toxicity, and reduced herbicidal efficacy, and achieve the effects of overcoming drug resistance, reducing dosage and improving control effect.

Inactive Publication Date: 2019-01-18
FOSHAN RUISHENGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the wide variety of herbicides currently used in agricultural production, the drug toxicity is high, and the residual amount is high, it is easier to make weeds resistant. When a herbicide with a single active ingredient is used, its weeding effect will be greatly affected by factors such as resistance. reduce

Method used

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  • Weeding composition containing topramezone
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  • Weeding composition containing topramezone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Indoor toxicity determination of fenfentrazone, fentrazone-sulam and benzobicyclone on crabgrass.

[0023] Test method: The test was carried out under greenhouse conditions, using the potted stem and leaf treatment method. Put a certain amount of soil in a plastic pot with a height of 6 cm and a diameter of 9 cm, sow 15-20 grains of the target weed seeds in the plastic pot, cover with 0.5-1 cm thick fine soil, and cultivate it in a greenhouse until the weeds grow to Stems and leaves were sprayed at the 1-3 leaf stage, spraying 1mL per pot, and each treatment was repeated 4 times, and the treatment without chemical was set as the control. After the treatment, the test materials were cultured in the greenhouse, and the growth of the target weeds was observed regularly. After 15 days, the symptoms of damage and growth inhibition of the targets were visually observed, and the fresh weight of the above-ground parts was weighed to calculate the control effect of th...

Embodiment 2

[0029] Example 2: Combination of fentrazone, fentrazone sulfentrazone and benzobicyclone for controlling weeds in paddy fields.

[0030] Test drug:

[0031] Medicament 1: 52% fenflumezone·flumezone-sulam·benzobicyclone suspension concentrate (oxentrazone:flumezone-sulam:benzobicyclone=10:2:40).

[0032] Medicament 2: 60% fenflumezone·flumezone-sulam·benzobicyclone water-dispersible granule (oxentrazone:flumezone-sulam:benzobicyclone=10:10:40).

[0033] Medicament 3: 38% fenflumezone·flumezone-sulam·benzobicyclone wettable powder (oxentrazone:flumezone-sulam:benzobicyclone=2:1:16).

[0034] Test method: Test crops: paddy rice seedlings grow well, the plants are robust, and there are no other diseases and insect pests.

[0035] Targets of prevention and control: weeds such as duck tongue, crabgrass, foxtail, barnyardgrass, special-shaped sedge, and daughter.

[0036] Test method: Accurately weigh various chemicals according to the area of ​​the test plot, and after diluting w...

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Abstract

The invention provides a weeding composition containing topramezone. The weeding composition comprises the following effective components of topramezone, triafamone and benzobicyclon according to a mass ratio of (5 to 15):(2 to 10):(20 to 80).

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicidal composition containing fenfentrazone and its application. Background technique [0002] Benfentrazone is a triketone herbicide for post-emergence stem and leaf treatment. It is absorbed through roots, seedlings and leaves, and is transmitted to the top and base of plants to the meristem, inhibiting 4-HPPD and making carotenoids and chlorophyll Inhibition of biosynthesis and disruption of function lead to bleaching of symptoms in germinated sensitive weeds within 2-5 days of treatment and plant death within 14 days. The post-emergence use of fenfentrazone is wide, flexible, and has a broad herbicidal spectrum, controlling annual warm-season gramineous weeds and broad-leaved weeds. It is used to control annual weeds in cornfields, and has good control effect, but it has high cost for single use, which is not conducive to large-scale popularization and application...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01N43/66A01N41/10A01P13/00
CPCA01N43/80A01N41/10A01N43/66
Inventor 王金英王金生王涛王海勇张璇李三朵
Owner FOSHAN RUISHENGTONG TECH CO LTD
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