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Mixed sterilization combination 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

Active Publication Date: 2010-02-17
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 sclerotinia, but it is expensive to use alone and has the risk of resistance

Method used

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  • Mixed sterilization combination containing boscalid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Bioassay example 1: Toxicity determination of boscalid and procymidone or diethofencarb on cucumber botrytis

[0020] Test object: Cucumber Botrytis cinerea Pers.

[0021] The potted method was used in this experiment. The potted cucumber seedlings grow to the stage of 2 true leaves, and the numbers are reserved. On the basis of the preliminary test, set 5-7 series of mass concentrations according to the activity of the drug. Spray the medicinal liquid evenly on the leaf surface until it is completely wet, preferably without dripping water, and wait for the medicinal liquid to dry naturally for later use. For each treatment, 3 pots were repeated 4 times, and the treatment containing only solvent and surfactant but no active ingredient was set as a blank control. After 24 hours of chemical treatment, use a crop sprayer to evenly spray and inoculate the spore suspension of Botrytis cinerea on cucumber leaves. The configuration method of the spore suspension is as foll...

example 2

[0045] Bioassay example 2: Toxicity determination of boscalid and sclerotin or sclerotin against rape sclerotinia

[0046] Test object: Sclerotinia sclerotiorum

[0047]The mycelium growth rate method (plate method) was used in the test. On the basis of the preliminary test, according to the test treatment, the pre-thawed sterilized medium was quantitatively added to the sterile conical flask, and 5ml of the liquid medicine was sequentially taken from low concentration to high concentration and added to 45ml of hot medium (PDA Medium, 45-50 ℃) in the Erlenmeyer flask, after shaking up, pour into the glass petri dish of diameter 90mm rapidly, and each petri dish is poured into 10ml of culture medium with medicine. Set aside horizontally to cool and form into slabs. Each concentration was replicated five times. Treat it with clear water (containing a little solvent and surfactant) without active ingredients as a blank control. With the cultivated pathogenic bacteria, under a...

Embodiment 1

[0074] Example 1: 31% boscalid·procymidone suspension concentrate

[0075] Boscalid 30%, procymidone 1%, methylnaphthalenesulfonate sodium formaldehyde condensate 10%, xanthan gum 5%, bentonite 1%, glycerol 5%, water to make up to 100%.

[0076] This embodiment is applied to the prevention and treatment of gray mold of cucumber. Dilute and spray 31% boscalid·procymidone suspension 1000 times (the effective concentration of boscalid is 300 μg / ml, and the effective concentration of procymidone is 10 μg / ml) with water. The control effects were 89.8% and 85.2% respectively. 35% boscalid suspension concentrate is used in the same way as 1000 times (boscalid effective concentration is 350 μg / ml) and 50% procymidone water dispersible granule is used in the same way as 2000 times (effective concentration is 250 μg / ml). After 7 days and 15 days, the control effects were 86.1%, 84.3%, 80.4%, 76.1%, respectively. The synergistic effect of boscalid and procymidone compounded was obviou...

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Abstract

The invention relates to a sterilization combination which contains the effective components of (A) boscalid and (B) which is one of procymidone, diethofencarb, dichlozoline or dimethachlon, wherein the mass proportion of A and B is 30:1 to 1:50. After mixing, A and B have obvious synergism, and are used for preventing and treating diseases of crops such as fruit trees, flowers, cottons, wheats, rices, rapes, 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, such as cucumber gray mold and tomato gray mold, is a very important disease of crops, often causing major losses of crops. Sclerotinia is also a very important disease. It is caused by Sclerotinia sclerotiorum of the Ascomycete subphylum. It often occurs on rapeseed and cucumber. During the flowering period, warm and high-humidity environmental conditions are easy to prevail and can cause huge loss. [0003] According to literature reports, due to single drug use and other unscientific drug use methods, botrytis cinerea and sclerotinia have developed resistance to commonly used pesticides, and the increase in the amount and frequency of spraying after the resistance has caused farmers to burden aggravation and environmental pollution. [0004] This problem can be solved by dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N37/32A01N47/20A01P1/00A01P3/00
Inventor 张洪张承来曹明章刘胜召殷如龙刘立栓李琛
Owner SHENZHEN NOPOSION AGROCHEM
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