Sumitomo Chemical Company, Limited

Timothy C Hadingham

Takahisa Hirayama

Ellyana Njatawidjaja

A method of the present invention, for controlling a harmful arthropod employs an ester compound which has a specific structure. Accordingly, with the method of the present invention, it is possible to control a wide variety of harmful arthropods effectively, without carrying out any heating process (e.g., a smoking process) for spraying the composition or any pressure process (e.g., a gas-pressure process or a mechanical pressure process) for spraying the compositions.

Method of controlling harmful arthropod, composition, and electrostatic spray device

According to the present invention, an arbitrary active constituent is sprayed stably so as to treat a target space. A method of the present invention, for treating a target space, includes the step of spraying, in the target space, a composition in an effective amount, the composition containing (i) a solvent and (ii) an electrolyte having a pK of not less than &#x2212;10 but not more than 7, which pK is a dissociation constant with respect to water, the composition being sprayed as liquid particles in a mist form, which liquid particle have (I) an average particle diameter of not less than 100 nm but not more than 10 &#x3bc;m and (II) an average charge number of not less than +40 but not more than +40000.

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Wallingford, United Kingdom

Timothy C Hadingham