Mosquito repellent composition
A technology of composition and insect repellent, applied in the field of composition of flying insects, can solve problems such as fire, user feeling uncomfortable, etc.
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Embodiment 1
[0108] Formulation and Distribution
[0109] Table 1 below lists the ingredients present in the insecticide composition.
[0110]
[0111] Table 1
[0112] Cedarwood flour, coconut shell flour and alpha starch were weighed and mixed thoroughly to form a powder mixture. Sodium dehydroacetate was weighed into a beaker, and water was added to it to form a clear liquid. Sodium dehydroacetate solution and a methofluthrin composition (SumiOne™ 5% EC with 5.05% w / w metofluthrin) were then added to the powder mixture and the beaker containing the solution was rinsed with water, Then also added to the powder mixture. The resulting mixture was kneaded to form a dough, which was then molded using a conical mold (the inner dimensions of the cone mold provided a cone with a height of 3.00 cm and a diameter of 1.5 cm at its widest point), where each cone was The mass is a target weight of 2.50 to 2.70 g when wet (1.30 to 1.50 when dry). The wetted cones were dried in an oven heated ...
Embodiment 2
[0116]laboratory test
[0117] Then, with four walls and a volume of 30m 3 Dry cones (prepared by the procedure of Example 1) containing ~5 mg of metfluthrin per cone were mixed with transfluthrin-impregnated paper and Malaysian standard reference mosquito-repellent coils (containing 0.20 %w / w Pynamin Forte) comparison. The test plan uses a free-flight approach, and the procedures used for each of the above are described in more detail below.
[0118] Mosquito coil (Malaysian standard product) test method
[0119] A smoldering mosquito-repellent coil was clamped to a metal support and, immediately after recording the initial weight, it was introduced into the center of a large chamber, and one hundred female mosquitoes (Culex fumigatus) were released into the chamber immediately thereafter. Count downed (upside down) mosquitoes at appropriate intervals for up to 120 min. At the end of the observation period, the mosquito coils were weighed again to calculate the burning r...
Embodiment 3
[0133] Cones containing metfluthrin were compared to cones containing other vapor-active pyrethroids and to Malaysian standard mosquito coils.
[0134] Cone
[0135] Using the recipe and method of Example 1 (60°C - dry) to make cones containing one of Metofluthrin, Perfluthrin, Transfluthrin and Profluthrin body. The amount of active agent (based on pure active agent) in each cone was adjusted and listed in Table 3 below.
[0136] testing method
[0137] The analysis in Example 2 was repeated for each cone containing metofluthrin, perfluthrin, transfluthrin, and profluthrin, except that the data was only collected once 8 hours after initial ignition. Cone as described in the test method.
[0138] result
[0139] The results obtained in the tests are shown in Table 3 below.
[0140] sample KT 50 (minute)
Mefluthrin (~4.5mg) 29.6 Perfluthrin (~4.5mg) 21.8 Transfluthrin (~9mg) 42.5
[0141] table 3
[0142] As shown in Table 3, ...
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