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Sterilization composition containing folpet and isopyrazam and application thereof

A technology of pyrafenafil and a fungicide composition, which is applied in the field of fungicide compositions containing folpet and pyrafenafil, and can solve the outstanding problems of pesticide resistance, long service life of folpet, and pesticide Problems such as increasing the dosage of the application can achieve the effect of reducing the cost of medication, improving the bactericidal effect, and reducing the amount of use

Inactive Publication Date: 2018-11-23
YINGDE GREATCHEM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, due to the long-term and large-scale use of chemical pesticides, the dosage of pesticides has been continuously increased, and the problem of pesticide resistance has become prominent
Among them, folpet has been used for a long time, and there is already a serious problem of pesticide resistance

Method used

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  • Sterilization composition containing folpet and isopyrazam and application thereof
  • Sterilization composition containing folpet and isopyrazam and application thereof
  • Sterilization composition containing folpet and isopyrazam and application thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0023] Test object: Cucumber downy mildew

[0024] The pot cutting method was used for determination, and the cucumber seedlings were used when they reached the four-leaf stage. There are 10 groups (one ratio is one group) for chemical treatment, each group has 3 replicates, each replicate has 4 pots, and clear water is the control group. Prepare and dilute 100mL of medicaments in different proportions, and use crop spray foliar spray to treat cucumber seedlings respectively. After 24 hours of chemical treatment, inoculate the activated bacteria (spray inoculation method, spore concentration of 2×10 6 per mL, just spray until the leaf surface is wet), and the disease condition investigation was carried out 8 days after inoculation.

[0025] The co-toxicity coefficient (CTC) method was used to determine the joint action mode. The formula for calculating the co-toxicity coefficient is as follows:

[0026] Measured Toxicity Index (ATI) = (standard drug EC 50 / Test agent EC ...

experiment example 2

[0033] Experimental Example 2 Subject: Tomato Blight

[0034] The experimental method also adopts the potted method, and the specific method steps refer to Experiment 1. The results of indoor toxicity test are shown in Table 2:

[0035]

[0036] The test results showed that fendol and pyraclostrobin had a synergistic effect on tomato blight within a certain ratio range, and when the ratio was between 1:15 and 15:1, the co-toxicity coefficients were all above 120.0, which was excellent. The matching ratio is 1:5.

Embodiment 115

[0038] Example 1 15% sterilized pyraclostrobin aqueous emulsion

[0039]Fendand 12.5g, pyraclostrobin 2.5g, phenethylphenol polyoxyethylene ether 6g, castor oil polyoxyethylene ether 2g, solvent oil 7g, glycerol 2g, add water to 100g, and mix the above raw materials according to the conventional The method for preparing the emulsion in water is put into a mixing kettle and mixed, and the main active ingredient is made into an emulsion in water of 15% sterilized pyraclostrobin in weight percent.

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Abstract

The invention discloses a sterilization composition containing folpet and isopyrazam and application thereof. The sterilization composition uses folpet and isopyrazam as major active ingredients, wherein the mass ratio of the folpet to the isopyrazam is (1 to 50):(50 to 1). The sterilization composition can be applied to the prevention and treatment of cereal crop and vegetable and fruit tree diseases, has high synergistic interaction effects, overcomes and delays the pathogenic bacterium drug resistance, and has the advantages that the sterilization speed is high; the effect duration period is longer; the application cost is reduced; the prevention and treatment effects are obviously better than those of other single agents when being used. The sterilization composition can be used for preventing and treating fungus diseases on the crops, and can be particularly used for preventing and treating fruit and vegetable downy mildew and epidemic diseases; the prevention and treatment effects are better than that of a single agent.

Description

technical field [0001] The invention relates to the field of agricultural fungicides, in particular to a fungicide composition containing folpet and pyraclostrobin and an application thereof. It is mainly used to control downy mildew and blight of melons and fruits, especially cucumber downy mildew, grape downy mildew, tomato blight, potato blight, and watermelon blight. Background technique [0002] Folpet, also known as Falton, Folpet, CAS registration number: 133-07-3, its chemical name is N-(trichloromethylthio)phthalimide or N-(trichloro Methylthio) phthalimide, its molecular formula C 9 h 4 Cl 3 NO 2 S, the molecular weight is 296.56. It is a broad-spectrum protective fungicide, which mainly prevents various diseases such as rice sheath blight, rice blast, tobacco anthracnose, peanut leaf spot, rape sclerotinia, potato late blight, and melon frost in grain and oil crops, vegetables, and fruit trees. Mildew, safe for crops. [0003] Isopyrazam is a succinate dehy...

Claims

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Application Information

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IPC IPC(8): A01N47/04A01N43/56A01P3/00
Inventor 夏衍李文欧李治伟王斯研殷素侠彭军刘世勇吴光辉王世银蔡丹群
Owner YINGDE GREATCHEM CHEM
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