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Spring rape seed coating agent and application thereof

A spring rapeseed, dosage technology, applied in the direction of application, insecticides, biocides, etc., can solve the problems of insufficient control effect of fungicides or insecticides, inability to prevent both diseases and insects, and large amount of pesticide application, etc., to achieve reduction The frequency of spraying in the field, improving the safety of use, and the remarkable effect of pest control

Inactive Publication Date: 2020-08-25
INST OF PLANT PROTECTION GANSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Problems existing in the existing technology: the most common and most harmful pests and diseases in spring rape production are spring rape sclerotinia and spring rape flea beetle, which all originate from the soil, and seed treatment is a feasible prevention and control technology
The existing seed treatment technology is mainly a single fungicide or insecticide seed dressing or coating. The technology is single and cannot prevent both diseases and insect pests. The fungicides or insecticides used in some seed dressings or coating agents are not effective enough Significantly, and affect the emergence of rapeseed, leading to increased soil treatment and stem and leaf spray control in some areas, there are problems such as large amount of pesticide application, high investment, high labor intensity, and high environmental pollution

Method used

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  • Spring rape seed coating agent and application thereof
  • Spring rape seed coating agent and application thereof
  • Spring rape seed coating agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present embodiment provides a kind of spring rape seed coating formulation, and the weight percentage distribution ratio of each raw material content is as follows:

[0025] Fludioxonil (with figure 1 )1-5%, dinotefuran (attached figure 2 )2-6%, brassinolide (with image 3 ) 0.0001-0.0003%, dispersant 2-7%, anticaking agent 1-4%, suspending agent 1-6%, film forming agent 0.1-3%, filler 1-10%, preservative 1-3%, Coloring agent (warning color) 3-5%, the balance of water.

[0026] Further, fludioxonil and dinotefuran described in the above formula are selected from the original drug or high-content preparation with a content of more than 90%, and the ratio is calculated according to the effective content. The brassinolide is selected as 0.01% preparation according to the effective content ratio.

[0027] Further, the dispersant can be selected from nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether, styrene ethylphenol polyoxyethylene ether, fatt...

Embodiment 2

[0035] Present embodiment provides a kind of preparation method of spring rape seed coating agent, comprising:

[0036] (1) In the high-shear emulsification disperser, add metered fludioxonil, dinotefuran, brassinolide and dispersant, anticaking agent, film forming agent, filler, preservative, colorant and Make up with water and stir to combine.

[0037] (2) Disperse the above mixed liquid homogeneously for about 30 minutes under vacuum airtight condition.

[0038] (3) Add the above-mentioned mixed liquid into a sand mill with a circulating water cooling device at a uniform speed and in an even amount to grind for about 1 hour, add an aqueous solution made of a suspending agent to adjust the viscosity, mix and stir evenly, and then discharge.

[0039] (4) weighing and packaging.

Embodiment 3

[0041] This embodiment provides the application of a kind of spring rapeseed coating agent in the prevention and control of spring rapeseed sclerotinia, spring rapeseed powdery mildew, spring rapefly beetle and spring rapeseed weevil, including: using the aforementioned formula, the inventor in Gansu A large number of comparative tests were carried out in Fangjia Village, Chuimata Town, Jishishan County, Linxia Prefecture, the province. The results showed that the two pesticides, fludioxonil and dinotefuran, both have systemic and conductive properties in the roots of spring rapeseed, and have long-lasting effects, etc. characteristics, compound seed dressing, embodies the advantages of good synergistic effect, both disease and insect control, and disease and insect control effect are significant (attached Figure 4or table 1 below). The selection of brassinolide can eliminate the negative effects of two kinds of pesticides on the germination and seedling of spring rapeseed se...

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Abstract

The invention relates to a spring rape seed coating agent and application thereof. The seed coating agent is a composition taking fludioxonil, dinotefuran and brassinolide as main active ingredients.The formula of the spring rape seed coating agent comprises the following raw materials in percentage by weight: 1-5% of fludioxonil, 2-6% of dinotefuran, 0.0001-0.0003% of brassinolide, 2-7% of a dispersing agent, 1-4% of an anti-caking agent, 1-6% of a suspending aid, 0.1-3% of a film-forming agent, 1-10% of filler, 1-3% of a preservative, and 3-5% of a coloring agent (warning color), with the balance being water. When the seed coating agent disclosed by the invention acts on spring rape seeds, through coating treatment, spring rape sclerotinia rot, spring rape powdery mildew, spring rape flea beetle, spring rape stem weevil beetle and other diseases and insect pests can be effectively prevented and controlled, higher synergistic interaction can be generated, the pesticide use cost is lowered, the spring rape seed emergence rate is ensured, the pesticide residue is lowered, and the pollution of the pesticide to soil and water is relieved.

Description

technical field [0001] The invention relates to the technical field of spring rape seed coating, in particular to a spring rape seed coating agent and its application. Background technique [0002] Rapeseed is the most important oil crop in China and one of the four major oil crops in the world. The oil content of its seeds is 33% to 50%. At present, the planting area of ​​rapeseed in China is about 7 million hectares 2 , is the world's largest rapeseed producer. The growth period of spring rapeseed is long, and there are many kinds of diseases and insect pests, such as Sclerotinia disease, rapeseed flea beetle [Psylliodes punctifrons Baly], rapeseed yellow strip flea beetle [Phyllotreta striolata (F.)] Hazards are more common. Among them, Sclerotinia sclerotiorum is a stem rot and necrotic disease caused by the ascomycete fungus Sclerotiorum (Lib.) deBary infecting spring rape. The loss caused by spring rape accounts for about 80% of the total disease loss. Spring rape...

Claims

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Application Information

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IPC IPC(8): A01N43/36A01N51/00A01N43/22A01N25/04A01P7/04A01P3/00A01P21/00
CPCA01N25/04A01N43/22A01N43/36A01N51/00
Inventor 郑果刘永刚李继平王立惠娜娜洪流李青青骆惠生孙盘龙
Owner INST OF PLANT PROTECTION GANSU ACAD OF AGRI SCI
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