The control and repellency of
biting insects, houseflies, ticks, ants, fleas, gnats, cockroaches, spiders, and foul-smelling insects is obtained by contact of the insects with at least one of the compounds of structure (I), (Formula I) where R is -OH, =O, -OC(O)R4, -OR6, or -(O6)2, where each R6 is independently an
alkyl group containing from 1 to 4 carbon atoms and R4 is a linear or branched, saturated or unsaturated hydrocarbyl group with from zero to two double bonds and from 1 to 15 carbon atoms; X is O or CH2, with the condition that when X is OR it can only be =O; each Z is independently selected from (CH) and (CH2); and is a number selected from 1 and 2; R1 is selected from H or a branched or linear chain hydrocarbyl group, saturated or unsaturated, with from zero to two double bonds and from 1 to 15 carbon atoms;R2 is H and a linear or branched chain hydrocarbyl group, saturated or unsaturated, with from zero to three double bonds and from 1 to 15 carbon atoms; R3 is H, a linear or branched chain hydrocarbyl group, saturated or unsaturated, with from zero to three double bonds and from 1 to 15 carbon atoms, -(CH2)nOH, -C(O)OR5, -CH2C(O)OR7, -CH2C(O)R8, -C(O)NR9R10 or CH2C(O)NR11R12 wherein each of R5, R7, R8, R9, R10, R11 and R12 is independently H and a linear or branched chain hydrocarbyl group, saturated or unsaturated, with from zero to three double bonds and from 1 to 15 carbon atoms, and n is an integer n from 1 to 12; The link between positions 2 and 3 in the ring structure can be a single link or a double link;and wherein the compounds of structure (I) contain from 11 to 20 carbon atoms, except where R is =O, X =CH2 and e is 1, the compounds of structure (I) contain from 13 to 20 carbon atoms, provided that when R3 is -CH2C(O)OR, R1 and R2 must be H or a saturated hydrocarbyl group with zero double bonds. The invention also includes optical isomers, diastereomers, and enantiomers of the compounds of structure (I).