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Biological-chemical synergistic bactericide composition and preparation method thereof

A fungicide composition and synergistic technology, applied in botany equipment and methods, chemicals for biological control, fungicides, etc., can solve the problems of high use cost, achieve low preparation cost, reduce toxicity, and sterilize broad spectrum effect

Inactive Publication Date: 2012-08-15
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the cost of single-use high-content cyprodinil alone is relatively high at present

Method used

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  • Biological-chemical synergistic bactericide composition and preparation method thereof
  • Biological-chemical synergistic bactericide composition and preparation method thereof
  • Biological-chemical synergistic bactericide composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 In order to determine the bacteriostatic effect of different ratios of cyprodinil and Jinggangmycin on rice sheath blight bacteria, the indoor toxicity of different ratios of cyprodinil and Jinggangmycin to rice sheath blight bacteria was carried out. Measure, be made into corresponding concentration according to weight percentage in the table, test result is reported as follows now:

[0019] Table 1 Toxicity test results of cyprodinil and Jinggangmycin single agent and their mixture against rice sheath blight

[0020]

[0021] The test results showed that the mixture of cyprodinil and Jinggangmycin at a ratio of 1:5 to 1:10 could strongly inhibit the growth of rice sheath blight mycelia, and the synergistic effect of the ratio of 1:10 was the highest. obvious.

Embodiment 2

[0022] Example 2 Preparation of 11% Jinggangmycin Cyprodinil wettable powder:

[0023] Jinggangmycin 10%

[0024] Cyprodinil 1%

[0025] NNO (dispersant) 3%

[0026] Sodium lignosulfonate (dispersant) 7%

[0027] Sodium alkylbenzene sulfonate (dispersant) 1%

[0028] Silica (filler) 78%

[0029] Weigh the materials according to the above weight ratio, add each material successively under stirring, after being pulverized by a jet mill and then stir and mix uniformly, the product is obtained, and the field drug efficacy test for preventing and treating rice sheath blight is carried out. The disease control effect is 80%.

[0030] Table 2 Control effect of 22% Jinggangmycin · Cyprodinil wettable powder on rice sheath blight after 10 days of treatment (%)

[0031] (Jiangsu Jiangdu)

[0032]

Embodiment 3

[0033] Example 3 Preparation of 11% Jinggangmycin Cyprodinil Suspension Concentrate:

[0034] Jinggangmycin 10%

[0035] Cyprodinil 1%

[0036] Nonylphenol ethoxylate (NP-9) (dispersion wetting agent) 8%

[0037] Propylene glycol (antifreeze) 1%

[0038] Xanthan gum (thickener) 1%

[0039] Silicone defoamer (SAG612) 2%

[0040] Water (filler) 77%

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PUM

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Abstract

The invention discloses a biological-chemical synergistic bactericide composition and a preparation method thereof. The preparation method comprises the following steps of: adding jinggangmycin, cyprodinil and additives into an enamel stirring kettle for uniform mixing, then performing airflow crushing or grinding, and then preparing into the bactericide composition containing the jinggangmycin and the cyprodinil, which is of wettable powder or suspension concentrate. The jinggangmycin and the cyprodinil are compounded for use, thus the bactericide composition has the characteristics of low toxicity, low residue, broad insecticidal spectrum, good lasting effect and low cost, in particular to nuisanceless control, and further becomes a relatively ideal pesticide variety for controlling rice sheath blight.

Description

technical field [0001] The invention relates to the technical field of pesticide production, in particular to the production technology of a bio-chemical synergistic fungicide composition. Background technique [0002] Rice sheath blight is an important disease of rice, with an annual incidence of over 100 million mu, which is a serious obstacle to high and stable rice yields in my country. The realization of pollution-free biological control of rice diseases is the development direction and goal of the field of agricultural plant protection. In recent years, although the state has explicitly prohibited the use of highly toxic pesticides on rice, it is still common to use highly toxic and high-residue pesticides in the actual agricultural production process due to the lack of highly effective disease control agents. Low-residue new pesticides are an inevitable development trend. [0003] Jingangmycin is a water-soluble antibiotic-glucoside compound produced by Streptomyces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N43/16A01P3/00
Inventor 孙红军南艳徐开云童振祥徐国香何昭君杭丛莉肖世健
Owner JIANGSU DONGBAO AGROCHEM
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