Seed coating agent for controlling flea beetle and Ceutorrhynchus asperRoel. for oilseed rape

Abstract

The invention relates to a preparation for crop seed coating treatment, more specifically to a special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape. The special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape is composed of the following ingredients(by weight): 29-34.3% of chlopyrifos, 3-5.7% of fipronil, 18-22% of mixed surfactants, 1-3% of a cosurfactant, 18-22% of a cosolvent, 0.4-0.6% of a film forming agent and the rest of water. The invention has the following beneficial effect: the special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape has high drug effect, islow-cost, is environmentally friendly, is convenient to use, has low dosage of fipronil, and can delay drug resistance.

Description

technical field [0001] The invention relates to a preparation for coating treatment of crop seeds, in particular to a seed coating agent for preventing and controlling rape beetle and stem weevil. Background technique [0002] The outbreak of rape seedling pests is one of the most serious factors for the loss of rapeseed. Therefore, paying attention to the control of seedling pests is an important measure to maintain and increase rapeseed production. Generally, methods such as chemical seed dressing, soil treatment, and field spraying are used. For prevention and control, chemical seed dressing is an effective method for controlling seedling pests at present. [0003] Seed coating technology is a high-tech agricultural technology, which can coat pesticides, growth regulators, micro-fertilizers and other active ingredients in the coating film formed on the surface of seeds, and release them slowly during seed germination and growth, effectively preventing and controlling seed...

AI Technical Summary

Problems solved by technology

[0009] In the prior art, 70% fipronil is made into dispersive seed coating agent and 20% fipronil suspension seed coating agent, but the single use of fipronil is not effective in preventing the harm of rape flea beetle and stem weevil. Obviously, the hazards of rape flea beetle and stem weevil cannot be effectively controlled, and in the prior art, fipronil is also used in combination with other insecticides, but they are all sprayed and used, and the pesticide management regulations have been clearly defined It is stipulated that fipronil is not allowed to be sprayed, which is not friendly to the environment. Generally, the EC formulation is to mix the insecticide of the EC with water in a certain proportion, and then spray it, and it is also made into an EC and a suspension. The reason for the high quality is that the seeds are not fully absorbed after seed dressing, and the distribution of the agent is uneven during the seed dressing process. The emulsifiable concentrate usually contains 60% to 90% organic solvents such as xylene or toluene, and the production cost is relatively high. In the process of storage and transportation, accidents such as combustion, explosion, and poisoning are also more likely to occur. During use, it is easy to pollute the environment and have a high risk to animals and plants. It has no obvious effect on preventing the damage of rape flea beetle and stem weevil.

Images