Composition for inhibiting the ability of mosquitoes to locate a target by olfactory emissions of the target comprise a composition of at least one inhibiting compound selected from the group consisting of 3-methyl-1-alkene-3-ols of the formula: ##STR00001## and 3-methyl-1-alkyn-3-o
1-Alkyn-3-ol compounds of the formula: ##STR1##where R.sup.1 is a saturated aliphatic hydrocarbon group containing from 1 to about 12 carbon atoms, and R.sup.2 is a hydrogen, are effective attractants for mosquitoes.
The ability of biting midges to locate a target by olfactory emissions of the target is inhibited by dispensing into a spatial area an inhibiting effective amount of at least one inhibiting compound selected from the group consisting of 3-methyl-1-alkene-3-ols of the formula: ##STR1#
The ability of mosquitoes to locate a target by olfactory emissions of the target is inhibited by dispensing into a spatial area an inhibiting effective amount of at least one inhibiting compound selected from the group consisting of 3-methyl-1-alkene-3-ols of the formula: ##STR1##an