Pesticide composition

A pesticide composition and crop disease technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of high production and use costs, difficulty in large-scale promotion and application, etc., to achieve improved control efficiency, Improve the effect of prevention and control and reduce the effect of pollution

Inactive Publication Date: 2010-03-17
陕西皇牌作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blasticamide has good crop safety and outstanding environmental compatibility, but its current production and use costs are relatively high, making it difficult to promote and apply in large areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Bioassay example 1: Indoor virulence determination of Magnaporthe grisea in combination with Pyramide and Isorphine

[0017] Test object: Rice blast fungus (collected from the field and separated and purified)

[0018] Test method: pot method. Three-leaf and one-heart stage rice seedlings with consistent growth are selected, with 2 seedlings per pot, and 5 pots for each treatment. The rice blast fungus was cultured on tomato juice oat agar medium, and the spores were washed with sterile water after sporulation to make 1×10 5 A spore / mL suspension was sprayed and inoculated evenly on the tested rice seedlings. After inoculation, the seedlings were put on a black plastic bag and cultured for 24 hours (25°C). After 24 hours of inoculation, the agent was treated with 5 concentration gradients for each agent, and sprayed with a Potter spray tower at a pressure of 50 PSI, 5 mL per treatment. After spraying, the rice seedlings were cultured at 25°C and relative humidity ≥90%. Aft...

Embodiment 1

[0032] Example 1: 15.5% rice blastamide·isomagazine suspension agent

[0033] Blastamide 15%

[0034] Different rice blast net 0.5%

[0035] Sodium methyl naphthalene sulfonate formaldehyde condensate (wetting agent) 7%

[0036] Xanthan gum (thickener) 2%

[0037] Bentonite (thickener) 1%

[0038] Nongru 600# phosphate (dispersant) 3%

[0039] Glycerol (antifreeze) 5%

[0040] Make up the water to 100%.

[0041] The active ingredient, dispersant, thickener, wetting agent, antifreeze and water are mixed uniformly according to the proportion of the formula, and after grinding and / or high-speed shearing, 15.5% rice blastamide·isoblastic blast is obtained Net suspending agent.

[0042] This embodiment is applied to control rice blast. 15.5% Oryzae amide·Isorhizome Suspension Agent 180g a.i. / ha [a.i., active ingredient; ha, hectares] diluted with water and sprayed, the control effect of 7 days after the application is 92.8%. The 20% rice blastamide suspending agent was diluted with water at 20...

Embodiment 2

[0043] Example 2: 36% blastamide·isomagazine wettable powder

[0044] Blastamide 30%

[0045] Different rice blast net 6%

[0046] Sodium lauryl sulfate (wetting agent) 2%

[0047] Sodium lignosulfonate (dispersant) 5%

[0048] White carbon black (filler) 10%

[0049] Kaolin (filler) fills up to 100%

[0050] The active ingredients, various auxiliaries and fillers are fully mixed according to the proportion of the formula, and then pulverized by an ultrafine grinder to obtain a 36% blastamide·isopyramide wettable powder.

[0051] This embodiment is applied to control rice blast. The 36% rice blastamide·isomagazine wettable powder was diluted and sprayed with water at 150g a.i. / ha, and the control effect was 93.2% 7 days after the administration. The 20% rice blastamide suspending agent was diluted with water at 200g a.i. / ha and 40% Isoblastamide emulsifiable concentrate at 1000g a.i. / ha, diluted and sprayed with water, and the control effects were 87.2% and 82.4% respectively after 7 day...

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Abstract

The invention discloses a pesticide composition, wherein the active ingredients thereof are fenoxanil and iprobenfos, the mass ratio of fenoxanil to iprobenfos is 30: 1 to 1: 40, and the residual components thereof are permissible and acceptable auxiliary components of pesticide. The bactericidal composition can be prepared into wettable powder, suspension agent, missible oil and water dispersiblegranule with the known preparation method, is mainly used for preventing and treating rice diseases, and has the advantages of high efficiency, low cost, and the like.

Description

Technical field [0001] The invention relates to a pesticide composition, in particular to a pesticide composition containing blastamide. Background technique [0002] Rice is one of the main food crops in my country. Its planting area accounts for about 1 / 4 of the country’s arable land, and its annual output accounts for about 1 / 2 of the country’s total grain output. However, due to the occurrence of rice diseases every year, the output is reduced by 20%- 40%. Among them, rice blast occurs in a large area, has a strong epidemic, and has serious damage. It is an important disease on rice. Due to the long-term single use of conventional agents such as tricyclazole, rice blast, and carbendazim, the rice blast fungus has developed resistance, and the resistance has continued to increase, and the control effect has declined. [0003] Fenoxanil (Fenoxanil) is a new and highly effective amide fungicide. It has good systemic and lasting effect. It prevents the infection of rice blast fung...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/14A01N39/04A01P3/00
Inventor 刘胜召张承来张洪殷如龙曹明章孔建
Owner 陕西皇牌作物科技有限公司
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