Medicament for killing Solenopsis invicta, and preparation method thereof

Abstract

The invention relates to a medicament for killing Solenopsis invicta, and a preparation method thereof. The medicament comprises, by weight, 0.13-0.24 part of fipronil, 2.5-5.5 parts of an indoxacarb/chitosan sustained-release microsphere, 0.3-0.8 part of a preservative, 1.5-3.5 parts of an adhesive, 30-40 parts of an attractant and 65-85 parts of a carrier; the surface of the indoxacarb/chitosansustained-release microsphere is coated with a layer of degradable film; and the carrier is one or a composition of two or more of wheat flour, sesame powder and corn flour. The preparation method ofthe medicament specifically comprises the following steps: S1, mixing and stirring the carrier and water to form an emulsion, adding active ingredients into the carrier emulsion, performing stirring until uniformity, adding the indoxacarb/chitosan sustained-release microsphere, and performing stirring until uniformity to prepare a mixed emulsion; S2, sequentially adding the adhesive, the attractant and the preservative into the mixed emulsion, and performing stirring until uniformity to prepare a primary medicament product; and S3, carrying out extrusion granulation, cooling and screening treatment on the primary medicament product to prepare the finished medicament finished product. The Solenopsis invicta killing durability of the medicament is improved.

Description

technical field [0001] The invention relates to the technical field of insecticides, in particular to a medicament for killing red fire ants and a preparation method thereof. Background technique [0002] Red imported fire ants are a kind of ants, belonging to social insects, with multiple grades, including reproductive female ants, male ants and worker ants. RIFA belongs to the family Formicidae of Hymenoptera. Its body is brownish red, and its body size is larger than that of ordinary ants. The adult body length is 3 mm to 6 mm. The Latin name of the red imported fire ants means "invincible" ants, and it is so named because it is difficult to control. The red fire ant is widely distributed and is one of the most destructive invasive organisms. RIFA has strong adaptability, miscellaneous feeding habits, strong fecundity and aggressiveness, and it may break out into disasters in a short period of time in newly introduced areas. The harms caused by RIFA mainly include: fir...

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Problems solved by technology

[0003] At present, chemical agents are mainly used to prevent and control RIFA at home and abroad. The existing chemical agents are mainly prepared from insecticidal ingredients, attractants, baits, preservatives, etc. The effect of controlling RIFA is good, but there are also obvious defects: Due to the long-term action of chemical agents on RIFAs, RIFAs will develop resistance. Once RIFAs develop resistance, the insecticidal effect of insecticides will be greatly reduced, resulting in the inability of insecticides to continue to act on RIFAs and cannot last for a long time. good efficacy

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