Bactericide composition with synergic effect and preparation method thereof

A bactericide composition and a synergistic technology, which are applied in the field of bactericide compositions and their preparation, can solve the problems of decreased control effect, long time limit for control and the like, and achieve the effects of low preparation cost, simple production and good control effect.

Inactive Publication Date: 2014-07-30
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorobromoisocyanuric acid has been used for a long time to control the main diseases of crops. The resistance of crop diseases has been significantly enhanced, and the control effect has declined.

Method used

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  • Bactericide composition with synergic effect and preparation method thereof
  • Bactericide composition with synergic effect and preparation method thereof
  • Bactericide composition with synergic effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1 In order to determine the bacteriostatic effect of different ratios of thiofluxamide and chlorobromoisocyanuric acid on rice sheath blight bacteria, the indoor experiment of different ratios of thiofluxamide and chlorobromoisocyanuric acid on rice sheath blight bacteria was carried out. For toxicity determination, the corresponding concentrations are formulated according to the weight percentage in the table, and the test results are reported as follows:

[0012] Table 1 The toxicity test results of thifuramide and chlorobromoisocyanuric acid single agent and their mixture against rice sheath blight

[0013]

[0014] The test results show that the mixture of chlorobromoisocyanuric acid and thifluzamide in the ratio of 10:1 to 1:1 can strongly inhibit the growth of rice sheath blight mycelium, and the synergistic effect of the ratio of 5:1 The most obvious.

[0015] The present invention will be further described below in conjunction with examples, and the ...

Embodiment 2

[0016] Example 2 30% Thiofuramide Chlorobromoisocyanuric Acid Suspending Concentrate

[0017] Chlorobromoisocyanuric acid 25%

[0018] Thiofuramide 5%

[0019] Nonylphenol ethoxylate (NP-9) (dispersion wetting agent) 8%

[0020] Propylene glycol (antifreeze) 1%

[0021] Xanthan gum (thickener) 1%

[0022] Silicone defoamer (SAG612) 2%

[0023] Water (filler) 58%

[0024] The materials were weighed according to the above weight ratio, stirred and mixed evenly, and the product was obtained by sand milling with a sand mill, and a field efficacy test for controlling rice sheath blight was carried out.

[0025] Table 2 Control effect of 30% Thiofuramide Chlorobromoisocyanuric Acid SC on rice sheath blight 10 days after drug application (%)

[0026]

[0027] The above measurement results show that 30% thifluzamide chlorobromoisocyanuric acid suspending agent has a control effect of more than 80% on rice sheath blight. Compared with single agent such as powder, it has obvi...

Embodiment 3

[0028] Example 3 30% Thiofuramide Chlorobromoisocyanuric Acid Wettable Powder

[0029] Chlorobromoisocyanuric acid 25%

[0030] Thiofuramide 5%

[0031] NNO (dispersant) 3%

[0032] Sodium lignosulfonate (dispersant) 7%

[0033] Sodium alkylbenzene sulfonate (dispersant) 1%

[0034] Silica (filler) 59%

[0035] 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%, and it has obvious synergistic effect compared with single doses such as 240 g / L thifluzamide suspension concentrate and 50% chlorobromoisocyanuric acid soluble powder.

[0036] Table 3 Control effect of 30% thifuramide·chlorobromoisocyanuric acid wettable powder on rice sheath blight 10 days after drug application (%)

[0037]

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Abstract

The invention discloses a bactericide composition with synergic effect and a preparation method thereof. The bactericide composition is characterized in that the composition comprises effective compositions thifluzamide and chlorobromoisocyanuric acid, and an additive; and based on the total weight of the composition, thifluzamide accounts for 3-30%, chlorobromoisocyanuric acid accounts for 15-40%, the additive accounts for 2-25% and a filling material accounts for 5-80%. The above raw materials are added into an enamel stirred vessel, mixed uniformly and subjected to air-flow crushing or grinding, so that the bactericide composition containing thifluzamide and chlorobromoisocyanuric acid is prepared and exists in the form of a wettable powder or a suspending agent. Through combination of thifluzamide and chlorobromoisocyanuric acid for usage, the bactericide composition is low in toxicity, low in residue, wide in bacteriocidal spectrum, good in persistent effect and low in cost, and is a relatively ideal efficient low-toxicity pesticide preparation kind for controlling paddy rice sheath blight.

Description

technical field [0001] The invention relates to a fungicide composition with a synergistic effect and a preparation method thereof, which has a strong effect of preventing and treating agricultural diseases and can be widely used in preventing and treating various diseases of rice. The fungicide composition with synergistic effect is different from other existing fungicide compositions or single-agent pesticides. The rational combination of two pesticides, thifuramide and chlorobromoisocyanuric acid, can delay the emergence of disease resistance , easy to use, safe, good control effect, low residue, safe for the environment, promote crop safety and high-quality production, and play an important role in increasing agricultural production and income. Background technique [0002] Rice sheath blight is the main disease that endangers rice production, and realizing pollution-free control of rice diseases is the development direction and goal of the field of agricultural plant pr...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01N47/02A01P3/00A01P1/00A01N43/64
Inventor孙红军南艳徐国香童振祥
OwnerJIANGSU DONGBAO AGROCHEM