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Insecticide impregrated article for control of flying insects

A technology for insects and products, applied in the fields of insecticides, devices for capturing or killing insects, biocides, etc., can solve the problems of no insect control and insufficient protection of more open spaces.

Inactive Publication Date: 2002-07-10
SC JOHNSON & SON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the devices of Kauth et al. are usually hung in a closet or used in a drawer, indicating that they do not adequately protect larger, more open spaces
However, in a relatively large volume space, when Kauth et al.'s paper or cloth strips are kept in a moving air stream, there is no ability to control insects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Olfactometer test

[0033] The olfactory test is a method of measuring the effect of volatile active ingredients on flying insects under precisely controlled conditions. Mosquitoes were used as test insects. In this example, as well as in the others below, the mosquito used was A. aegypti. The olfactometer test used for the olfactory experiments described below produces two uniform, laminar air streams. These air streams have a target air stream superimposed and focused on the carrier air stream.

[0034] The olfactometer provides 929cm 2 area of ​​the square test surface. The test area includes a 42cm 2 The circular target area, centered at 887cm 2 on a square background area. In the experiment, a flow of carbon dioxide at 200 milliliters per minute was added to the carrier gas flow to activate the mosquitoes. The relative humidity of the carrier gas stream is 65% to 70%, and the temperature is about 25°C. The flow rate of the carrier gas stream is ...

Embodiment 2

[0042] From the data provided in the table above, it can be observed that the mosquito repellent effect per gram of active ingredient varies widely. The bromometer test for active insect control ingredients is both less expensive and faster than other tests, and thus, provides a useful first screening technique. However, the conditions of the bromosensory test are different from those used in the actual control of flying insects. Therefore, although from the results in the table above, transfluthrin, tefluthrin, ethynethrin, bioallyl Permethrin, ketonethrin, and pentecychlothrin would all appear to be candidates for use in actual flying insect control, but trials that better mimic actual application show that this is not the case, and it needs to be emphasized that this cannot be done from previous similar but different conditions. The next application predicts the usefulness of any given active ingredient. Embodiment 2: calculation of volatility and activity index

[0043] ...

Embodiment 3

[0047] Example 3: Box Test

[0048] A box test protocol was developed to more closely simulate the actual use conditions of the insect control articles of the present invention. Apply a closed, generalized volume of about 28m 3 The box-shaped test chamber, the size of a small room. The six mosquito knockdown cages were placed upright in the test box, suspended from poles adjacent to the two opposite side walls of the test box, and they could be observed from outside the test box through the test box windows. During the test, the mosquitoes in the cage are observed to assess the ability of the tested substance to knock them down. An insect being knocked out means it has no ability to fly and usually looks dying. The insect may or may not have actually died. The knockdown cage is cylindrical, about 6 cm long and 8 cm in diameter, with screens at both ends but open.

[0049] Two kinds of repellent cages are also provided. The mosquito repellent cage is a box-shaped cage wit...

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PUM

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Abstract

An insect control article to control flying insects. The insect control article has a substrate that is impregnated with an active insect control ingredient that is available for passive evaporation. The active insect control ingredient is selected from the group consisting of transfluthrin, prallethrin, tefluthrin, esbiothrin, and combinations thereof. The method of the invention for controlling flying insects includes providing an insect control article having a substrate that is impregnated with an active insect control ingredient available for passive evaporation, wherein the active insect control ingredient is selected from the group consisting of transfluthrin, prallethrin, vaporthrin, tefluthrin, esbiothrin, DDVP, and combinations thereof. The insect control article is then placed in an environment with air movement in such a manner that the substrate of the insect control article is exposed to the air movement, and the active insect control ingredient impregnated within the substrate is allowed to evaporate passively into the air.

Description

technical field [0001] The present invention relates generally to insect control, and more particularly to insect control articles that are effective in killing or repelling mosquitoes in indoor spaces or within a volume near a person sitting in a patio, at a picnic table, or the like. Background of the Invention [0002] For some applications, it is important to be able to control flying insects in confined spaces, such as closed bedroom spaces, for six to ten hours or more. Such a long period of protection against insects is desirable, for example, to protect sleepers in an uncovered room from mosquito bites during the night. It would also be useful to deliver an insect-controlling amount of the active ingredient every night for several consecutive nights. Successful control of flying insects is also useful in other living spaces, including even sheltered areas where flying insects are always infested for whatever reason, as well as in patios, at picnic tables, or similar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/18A01M1/20A01N25/34A01N53/00A01N53/02A01N53/06A01N57/12A01P7/04
CPCA01N53/00A01N57/12A01N25/34A01N25/18A01N25/00A01N2300/00
Inventor R·R·艾米里奇J·W·米科恩T·A·拉金斯
Owner SC JOHNSON & SON INC
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