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Compound bactericidal composition containing boscalid

A technology of boscalid and its composition, which is applied in the field of compound bactericidal composition containing boscalid, can solve the problems of high cost and resistance, reduce production and use costs, reduce single selection pressure, The effect of reducing the dosage of pesticides in the field

Inactive Publication Date: 2010-02-24
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Boscalid is a new and highly effective agent for the control of botrytis cinerea and powdery mildew, but it is expensive to use alone and has the risk of resistance

Method used

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  • Compound bactericidal composition containing boscalid
  • Compound bactericidal composition containing boscalid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Bioassay Example 1: Toxicity determination of a compound of boscalid (A) and prochloraz, cyprodinil, and fluazinam (B) against cucumber gray mold

[0023] Test object: Cucumber Botrytis cinerea Pers.

[0024] The potted method was used in this experiment. Cucumber gray mold susceptible to sowing varieties, grown in pots until 2-4 true leaves, numbered for later use. On the basis of the preliminary test, set 5-7 series of mass concentrations according to the activity of the drug. For each treatment of 4 pots, spray 10ml of the medicinal solution evenly on the leaves until they are completely wet, and wait for the medicinal solution to dry naturally for later use. And the treatment containing only solvent and surfactant but no active ingredient was set as blank control. After 24 hours of chemical treatment, a crop sprayer was used to evenly spray and inoculate the conidia suspension of Botrytis cinerea on cucumber leaves. The preparation process of the conidia suspens...

example 2

[0050] Bioassay Example 2: Indoor Toxicity Test of Cyazofamid (A) and Prochloraz, Cyprodinil, and Fluazinam (B) against Cucumber Powdery Mildew

[0051] Test object: Cucumber powdery mildew (Erysiphe cichoracearum DC.)

[0052] The potted method was used in this experiment. Sowing cucumber powdery mildew varieties, the potted plant grows to 2-4 true leaf stage, and the number is reserved. On the basis of the preliminary test, set 5-7 series of mass concentrations according to the activity of the drug. Spray the liquid medicine evenly on the leaf surface until it is completely moistened, and wait for the liquid medicine to dry naturally for later use. Four pots were treated for each treatment, and the treatment containing only solvent and surfactant but no active ingredient was set as a blank control. 24 hours after the application, the powdery mildew spore suspension was sprayed and inoculated. The preparation process of the spore suspension is as follows: use pure water w...

Embodiment 1

[0076] Example 1: 10.2% boscalid prochloraz EC

[0077] Boscalid 10%

[0078] Prochloraz 0.2%

[0079] N-methylpyrrolidone (solvent) 10%

[0080] DMF (solvent) 10%

[0081] Nongru 1601# (emulsifier) ​​5%

[0082] Nongru 500# (emulsifier) ​​5%

[0083] Xylene (solvent) was made up to 100%.

[0084] Active ingredients, solvents, and emulsifiers are sequentially added into the mixing kettle according to the ratio of the formula, and stirred evenly to prepare 10.2% boscalid-prochloraz EC.

[0085] This embodiment is applied to the control of strawberry gray mold. Dilute and spray 10.2% boscalid prochloraz EC 500 times (the effective concentration of boscalid is 200 μg / ml, and the effective concentration of prochloraz is 4 μg / ml) with water, and the prevention and control of 7 days and 15 days after treatment The effects were 93.8% and 92.2%, respectively. 25% boscalid suspending agent was used at 1000 times (the effective concentration of boscalid was 250 μg / ml) and 25% pr...

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Abstract

The invention relates to a bactericidal composition, the effective ingredients of which are boscalid (A) and any one (B) of prochloraz, cyprodinil and fluazinum, wherein, the mass ratio of A to B is 50:1-1:50. The A and B have obvious synergized action after being compounded, and the compound bactericidal composition can be used for preventing and treating diseases, especially fungal diseases of crops, such as fruit trees, flowers, cotton, wheat, paddy, rape, vegetables and the like,.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a compound bactericidal composition containing boscalid. Background technique [0002] Botrytis cinerea is a very important disease of crops, often causing major losses of crops, such as gray mold of cucumber and gray mold of tomato. Botrytis cinerea has very high requirements on humidity. Generally, the continuous relative humidity of 90% or more from December to May of the following year is prone to disease. In addition, excessive plant density, vigorous growth, closed field canopy, and improper management will aggravate the occurrence and spread of this disease. Spring sowing in the open field in the south often occurs and spreads seriously when it encounters low temperature and rainy weather. [0003] Powdery mildew is also a very important disease, which occurs from time to time on cucumbers, zucchini, wheat, grapes and other crops, causing heavy losses. At present, powdery m...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01N43/40A01N43/54A01P3/00
CPCA01N43/40
Inventor 张洪张承来曹明章刘胜召殷如龙王新军孙承艳
Owner SHENZHEN NOPOSION AGROCHEM
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