Abstract: It is possible to repel arthropod by applying 4-hydroxy-6-methyl-3-(4- methylpentanoyl)-2-pyrone of formula: to a place where it is desired to repel arthropods.

Abstract: It is possible to repel arthropod by applying 4-hydroxy-6-methyl-3-(4- methylpentanoyl)-2-pyrone of formula: 1

Abstract: Small lumps of foamed plastic may be used as a shelter for rearing or transporting entomophagous insects. Also disclosed is a container for keeping entomophagous insects, which comprises a hollow body containing small lumps of foamed plastic and provided with one or more holes on its upper surface, the holes being of a size such that the entomophagous insects can pass through them but the small lumps of foamed plastic can not pass through them. This arrangement prevents the entomophagous insects from preying on each other, making it possible to efficiently rear or transport the entomophagous insects, particularly predatory insects such as lacewings, lady beetles and predatory bugs, for use in controlling insects that are harmful to field crops.

Abstract: An arthropod repellent composition containing a monoterpenediol compound selected from carane-3,4-diol-and p-menthane-3,8-diol and a pyrethroid compound selected from phenothrin and permethrin as active ingredients and an inert carrier exhibits an outstandingly high arthropod repellency for a long period of time.

Abstract: There is disclosed a shampoo composition including at least one particular pyrethroid compound as an active ingredient and a combination of particular nonionic surfactants. Also disclosed is a process for producing the shampoo composition.

Abstract: An insect repellent comprising as an active ingredient a monoterpenediol compound having the formula, ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 have either one of the following definitions:(i) all of R.sub.1, R.sub.2 and R.sub.3 are hydrogen,(ii) R.sub.1 is hydrogen and R.sub.2 and R.sub.3, taken together, form a carbon-carbon single bond, or(iii) R.sub.2 is hydrogen, R.sub.1 and R.sub.3, taken together, form a carbon-carbon single bond, and the hydroxyl bonded to the carbon atom marked with an asterisk takes an .alpha.-configuration.

Abstract: An insecticidal and/or acaricidal composition which comprises as an active ingredient an insecticidally and/or acaricidally effective amount of at least one ether compound of the formula: ##STR1## wherein X.sub.1 is a hydrogen atom, a halogen atom, a lower alkyl group, a halo(lower)alkyl group, a phenoxyphenoxy(lower)alkyl group, a lower alkoxy group, a halo(lower)alkoxy group, a phenyl group, a halo(lower)alkoxyphenyl group, a methylenedioxy group or a group of the formula: ##STR2## (in which ##STR3## is a 6-membered unsaturated ring, X.sub.2 is a hydrogen atom, a halogen atom or a halo(lower)alkoxy group, Y.sub.2 is a hydrogen atom or combined with Y.sub.1 to form a direct single bond, n is an integer of 1 or 2 and X is an oxygen atom, a sulfur atom, a carbonyl group or a group of the formula: --C(R.sub.3)(R.sub.4)-- (in which R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group));Y.sub.1 is a hydrogen atom or combined with Y.sub.2 to form a direct single bond;R.sub.1 and R.sub.