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Sterilization composition containing Dufulin and strobilurins

A technology of methoxyacrylic acid and poisonous fluorophos, which is applied in the field of pesticides, can solve the problems of environmental pollution, rapid development of germ resistance, and large dosage of pesticides, and achieve the effects of reducing costs, reducing dosage, and reducing pollution

Active Publication Date: 2012-10-10
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a highly efficient and safe bactericidal composition containing poisonous fluorophosphorus in order to overcome the shortcomings of the above-mentioned single bactericide, such as the large amount of medicament used, the serious environmental pollution, and the rapid development of germ resistance.

Method used

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  • Sterilization composition containing Dufulin and strobilurins
  • Sterilization composition containing Dufulin and strobilurins
  • Sterilization composition containing Dufulin and strobilurins

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Biological Assay Example 1: Indoor Toxicity Determination of Phytofluphos and Trifloxystrobin, Syringstrobin, Enostrostrobin, oryzastrobin to Rice Magnaporthe oryzae

[0026] Test object: rice blast fungus collected from the field

[0027] Test method: refer to "People's Republic of China Agricultural Industry Standard NY / T1154.7-2006", pot method. Select rice seedlings at the three-leaf stage with consistent growth potential, 2 seedlings per pot, and 5 pots of rice seedlings for each treatment. Cultivate Magnaporthe grisea on tomato oat agar medium, wash the spores with sterile water after spore production, and make 1×10 5 spores / mL suspension, sprayed evenly on the rice seedlings to be tested, and covered with a black plastic bag to moisturize and cultivate for 24 hours after inoculation. 24 hours after inoculation, carry out medicament treatment, set 5 concentration gradients for each medicament, and spray at 50PSI pressure with a Potter spray tower, about 5mL per ...

example 2

[0049] Biological Assay Example 2: Indoor Toxicity Determination of Tobacco Virus Disease by Combining Hemifluphos with Trifloxystrobin, Syringstrobin, Enostrostrobin and Oryzastrobin

[0050] Subject: Tobacco virus disease

[0051] Test method: Indoor potted tobacco susceptible plants are planted to the 4-5 leaf stage, mixed with equal volumes of virus juice with different ratios and different concentrations of medicaments for friction inoculation, 3 plants for each treatment, and 3 leaves for each plant, repeated 4 times, After 3-4 days, investigate the number of dead spots, calculate the inhibition rate, and use EC 50 The toxicity index and co-toxicity coefficient (CTC) of the drug were calculated according to Sun Yunpei's method.

[0052] The results of toxicity test (Table 5) showed that when the ratio of methifluphos and orysastrobin was between 50:1 and 1:50, it had obvious synergistic effect on tobacco virus disease, especially at the ratio of 20:1 to 1:50. Between 1...

Embodiment 1

[0068] Embodiment 1: 5% toxic fluorophos. Oryzastrobin Suspending Concentrate

[0069]

[0070] Mix the active ingredient, dispersant, thickener, wetting agent, antifreeze agent and water according to the proportion of the formula and mix them evenly, and get 5% poisonous phosphine after high-speed shearing. Oryzastrobin suspension concentrate.

[0071] This embodiment is applied to the prevention and treatment of rice blast. 5% Poison Fluorophos. Oryzastrobin suspension was diluted with water at 300g a.i. / ha and sprayed, and the control effect was 88.6% 10 days after application. 200g a.i. / ha of 30% hexafluorophos wettable powder and 300g a.i. / ha of 20% orysastrobin wettable powder were diluted with water and sprayed, and the control effects were 73.2% and 81.9% after 10 days of application. The synergistic effect of hemifluphos and orysastrobin compounding is obvious, and the control effect on rice blast is obviously better than that of a single agent; due to the impr...

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Abstract

The invention discloses a sterilization composition containing Dufulin and strobilurins. The effective ingredient of the sterilization composition is formed by compounding Dufulin A and strobilurins B, wherein strobilurins B is any one of trifloxystrobin, coumoxystrobin, enestroburin and orysastrobin; the weight ratio of Dufulin A to the strobilurins B is 50:1 to 1:50; the Dufulin A and the strobilurins B account for 5-80% of the total weight of the sterilization composition. The sterilization composition can be prepared into wettable powder, a suspending agent, water-dispersible granules and other conventional dosage forms. Used for controlling diseases of the crop, the antimicrobial composition has the advantages of being high in efficiency and low in environmental pollution, delaying generation of pesticide resistance of pathogenic bacteria and the like.

Description

Technical field [0001] The invention belongs to the technical field of pesticides and relates to pesticide compositions, specifically to a bactericidal composition containing toxic fluorophosphorus and methoxyacrylate fungicides. Background technique [0002] Toxofluorophos (N-[2-(4-methylbenzothiazolyl)]-2.amino-2-fluorophenyl-O,O-diethylphosphonate) is a fluorine-containing amino group with a novel structure New phosphate antiviral agents can activate the tobacco salicylic acid signaling pathway and increase the content of the signaling molecule salicylic acid, thus promoting the expression of downstream disease course-related proteins; obtained by inducing the activity of tobacco PAL, POD, and SOD defense enzymes Anti-viral ability; reduce virus invasion of host by gathering TMV particles. Since this agent is environmentally friendly, has a simple production process, has no three wastes, has a lower production cost than commercially available agents, and can also improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/24A01N43/16A01N37/50A01N37/36A01P3/00A01P1/00
Inventor 张攀李现玲宋娜温威
Owner GAUNGXI TIANYUAN BIOCHEM
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