Synergistic bactericidal composition containing boscalid

A technology containing boscalid and boscalid, which is applied in the field of synergistic bactericidal compositions, can solve the problems of long control time and reduced control effect, and achieve low preparation cost, low control cost and good environmental compatibility Effect

Inactive Publication Date: 2018-01-30
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tebuconazole has been used for a long time to prevent and 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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  • Synergistic bactericidal composition containing boscalid
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  • Synergistic bactericidal composition containing boscalid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1 In order to determine the bacteriostatic effect of different ratios of boscalid and tebuconazole on wheat powdery mildew bacteria, the indoor toxicity determination of different ratios of boscalid and tebuconazole on wheat powdery mildew bacteria was carried out. According to the weight percentage in the table, the corresponding concentration is made, and the test results are reported as follows:

[0012] Table 1 The toxicity test results of boscalid and tebuconazole single agent and their mixture against wheat powdery mildew

[0013]

[0014] The test results showed that the mixture of boscalid and tebuconazole at a ratio of 10:1 to 1:1 could strongly inhibit the growth of wheat powdery mildew mycelia, and the synergistic effect of the ratio of 1:5 was the most obvious.

[0015] The present invention will be further described below in conjunction with examples, and the following examples are only used to illustrate the present invention without limiting th...

Embodiment 2

[0016] Example 2 30% boscalid tebuconazole suspension concentrate

[0017] Boscalid 5%

[0018] Tebuconazole 25%

[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 stem borer and sheath blight was carried out.

[0025] Table 2 Control effect of 30% boscalid·tebuconazole suspension on wheat powdery mildew after 10 days of treatment (%)

[0026] (Hefei, Anhui)

[0027]

[0028] The above test results show that 30% boscalid tebuconazole suspension concentrate has a control effect of more than 80% on wheat powdery mildew. Compared with other single agents, it has obvious synergistic effect, and has the ob...

Embodiment 3

[0029] Example 3 30% boscalid tebuconazole wettable powder

[0030] Boscalid 5%

[0031] Tebuconazole 25%

[0032] NNO (dispersant) 3%

[0033] Sodium lignosulfonate (dispersant) 7%

[0034] Sodium alkylbenzene sulfonate (dispersant) 1%

[0035] Silica (filler) 59%

[0036] Weigh the materials according to the above weight ratio, add each material successively under stirring, pulverize through the jet mill and then stir and mix evenly to obtain the product, carry out the field drug efficacy test of preventing and treating wheat powdery mildew disease, the drug effect is better, and it is effective for wheat powdery mildew The control effect is 80%, and compared with single doses such as 50% boscalid water-dispersible granules and 25% tebuconazole wettable powder, it has obvious synergistic effect.

[0037] Table 3 Control effect of 30% boscalid·tebuconazole wettable powder on wheat powdery mildew after 10 days of treatment (%)

[0038] (Jiangsu Jiangdu)

[0039]

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Abstract

The invention discloses a synergistic bactericidal composition containing boscalid. The composition contains effective components such as boscalid, tebuconazole and an additive, with total weight of the composition as a reference, the composition is prepared from 15-40% of boscalid, 3-30% of tebuconazole, 2-25% of additive, and 5-80% of filling. The raw materials are added to a ceramic mixing kettle and are mixed uniformly, and then the mixture is smashed or grinded by air flow so as to prepare the bactericidal composition containing boscalid and tebuconazole in a form of wettable powder or suspended agent. The bactericidal composition compounds boscalid and tebuconazole, is low-toxic, has less residue, has a wide bactericidal spectrum, has long effect, and is low-cost, thereby being an ideal efficient low-toxic pesticide preparation preventing and curing wheat powdery mildew.

Description

technical field [0001] The invention relates to a synergistic bactericidal composition containing boscalid, which exhibits strong disease prevention and treatment effects on agricultural diseases and can be widely used in the prevention and treatment of various rice diseases. The fungicide composition with synergistic effect is different from other existing fungicide compositions or single-agent pesticides. The reasonable combination of boscalid and tebuconazole can delay the occurrence 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] Wheat powdery mildew disease is the main disease that endangers wheat production, and realizing pollution-free control of wheat disease is the development direction and goal of the field of agricultural plant protection. In recent years, ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01N43/653A01N43/40A01P3/00
Inventor孙红军刘幸海童正强周颖
OwnerJIANGSU DONGBAO AGROCHEM