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Sterilization composition containing Dufulin and orysastrobin

A technology of orysastrobin and hexafluorophos, 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: 2014-03-19
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 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 orysastrobin
  • Sterilization composition containing Dufulin and orysastrobin
  • Sterilization composition containing Dufulin and orysastrobin

Examples

Experimental program
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Effect test

example 1

[0023] Biological Assay Example 1: Indoor Toxicity Determination of the Compound of Hemifluphos and Orysastrobin on Rice Magnaporthe grisea

[0024] Test object: rice blast fungus collected from the field

[0025] 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 pot. After spraying, the rice se...

example 2

[0037] Biological Assay Example 2: Indoor Toxicity Determination of Tobacco Virus Disease Compounded by Hemifluphos and Orysastrobin

[0038] Subject: Tobacco virus disease

[0039] 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.

[0040] The results of the toxicity test (Table 2) showed that when the ratio of metafluphos and oryzastrobin was between 40:1 and 1:50, it had a significant synergistic effect on tobacco virus disease, especially at 20:1~ Between 1:20, the co-toxicity coefficient is above 150.

[0041] Table ...

Embodiment 1

[0045] Embodiment 1: 5% toxic fluorophos. Oryzastrobin Suspending Concentrate

[0046]

[0047] 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.

[0048] 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 improv...

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PUM

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Abstract

A disclosed sterilization composition containing Dufulin and orysastrobin is prepared by compounding active components Dufulin and orysastrobin with a weight ratio of 40:1-1:50, the sum of Dufulin and orysastrobin accounts for 5-80% by weight of the sterilization composition, and the sterilization composition can be prepared into routine dosage forms such as a wettable powder, a suspending agent, water-dispersible granules and the like. The composition is used to control crop diseases, and the sterilization composition provided by the invention has the advantages of being efficient, small in environmental pollution, capable of delaying generation of pathogen resistance, and the like.

Description

[0001] This application is a divisional application with the application number: 201210215432.5, the filing date: 2012.06.27, and the title of the invention: a fungicidal composition containing toxic fluorophosphorus and methoxyacrylate fungicides. technical field [0002] The invention belongs to the technical field of pesticides and relates to a pesticide composition, in particular to a bactericidal composition containing toxic fluorophosphorus and orysastrobin. Background technique [0003] Phosphate (N-[2-(4-methylbenzothiazolyl)]-2.amino-2-fluorophenyl-O,O-diethylphosphonate) is a novel fluorine-containing amino group Phosphate-based new antiviral agents can increase the content of the signal molecule salicylic acid by activating the tobacco salicylic acid signaling pathway, thereby promoting the expression of downstream disease-related proteins; obtained by inducing the activities of tobacco PAL, POD, and SOD defense enzymes Antiviral ability; reduce the invasion of th...

Claims

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Application Information

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IPC IPC(8): A01N57/24A01P1/00A01P3/00A01N37/50
Inventor 张攀李现玲宋娜温威
Owner GAUNGXI TIANYUAN BIOCHEM
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