Fly killing composition and application thereof

Abstract

The invention relates to a fly killing composition which is composed of an original drug component A, an original drug component B and an auxiliary component C, wherein the total weight of the component A and the component B is 0.03-10% of that of a pesticide composition; the original drug component A is fipronil; and the original drug component B is pyrethroid integrating high-efficiency knockout performance and lethal performance. According to the invention, the response speed is obviously increased through high contact toxicity of the pyrethroid; with the help of high-efficiency stomach poisoning action and synergistic action of the fipronil, the killing speed is further accelerated; simultaneously, the lethality is obviously increased; a more efficient drug is provided for controlling vector-borne infection in environments required for residential production and living and for protecting people health; in addition, while obviously increasing the fly killing efficiency, resistance is delayed, and the drug cost is saved.

Description

technical field [0001] The invention relates to an insecticidal composition, in particular to a fly-killing composition and its application. Background technique [0002] Chinese patent CN1242942A once reported: use deltamethrin, lutramethrin, indole and trimethylamine salt to make a mixed preparation to kill houseflies; pests. Though this type of fly-killing bait all has certain effect, certain defective all exists again. Patent CN1242942A only uses deltamethrin as the active ingredient for killing flies. Although deltamethrin has both knockdown and lethal activities, its lethality is slightly lower, and long-term use of a single dose can easily make houseflies develop resistance. Patent CN101697732A mentioned that the combination of fipronil and tetramethrin can have a synergistic effect in killing sanitary pests, but it only noticed the high co-toxicity coefficient of the two, and did not notice that the mode of action of the two has a certain Contradictory, that is, t...

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Problems solved by technology

Patent CN1242942A only uses deltamethrin as the active ingredient for killing flies. Although deltamethrin has both knockdown and lethal activity, its lethality rate is slightly lower, and long-term use of a single dose can easily cause houseflies to develop resistance

Patent CN101697732A mentioned that the combination of fipronil and tetramethrin can have a synergistic effect in killing sanitary pests, but it only noticed the high co-toxicity coefficient of the two, and did not notice that the mode of action of the two has a certain Contradictory, that is, the knockdown activity of tetramethrin is much greater than the lethal activity, and its vapor pressure is higher, so it needs a higher dosage to achieve rapid knockdown, but at this time, pyrethrin has a strong repellent effect on housefly, so that housefly Feed intake of baits is significantly reduced, which affects the efficacy of fipronil through stomach poisoning, thereby greatly reducing the lethal rate; but if the dosage of tetramethrin is reduced, the effective rate will be greatly affected

[0003] The purpose of the present invention is to overcome the many shortcomings of the above-mentioned baits for trapping and killing houseflies, and to provide a high-efficiency fly-killing bait. The effective components of this high-efficiency fly-killing bait are fipronil and cypermethrin, etc. The combination of pyrethroids, on the one hand, solves the disadvantages of traditional organophosphorus insecticides such as large dosage, low mortality and severe odor, and on the other hand, solves the disadvantages of low killing rate and easy recovery of pyrethroids alone. On the other hand, this type of cypermethrin etc. has both high-efficiency knockdown and lethal performance. Compared with tetramethrin, pyrethroid has low vapor pressure, less dosage, and stronger lethal activity. Avoidance performance prolongs the contact time, which is more conducive to the high-efficiency contact toxicity of cyanogen bromide, accelerates knockdown and assists death, and overcomes the shortcomings of tetramethrin’s large dosage and serious impact on palatability. It is more beneficial for fipronil to play a role in stomach poisoning and completely kill houseflies

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