Use of ketone, alcohol and schiff base-containing compositions for repelling blood feeding arthropods and apparatus for determining repellency and attractancy of semiochemicals against and for blood feeding arthropods

A method of repelling at least one of the insect species:

• (a) Musca Domestica L. (Diptera:Muscidae);
• (b) Aedes aegypti;
• (c) Aedes albopictus;
• (d) Anopheles spp.;
• (e) Coquillettidia perturbans;
• (f) Culiseta spp.;
• (g) Culex spp.;
• (h) Psorophora spp.;
• (i) Culicoides spp.;
• and/or
• (j) Lutzomyia spp.
• for a finite period of time from a three dimensional space inhabitable by said insect species comprising the step of exposing said three dimensional space to an effective:
• (a) Musca Domestica L. (Diptera:Muscidae);
• (b) Aedes aegypti;
• (c) Aedes albopictus;
• (d) Anopheles spp.;
• (e) Coquillettidia perturbans;
• (f) Culiseta spp.;
• (g) Culex spp.;
• (h) Psorophora spp.;
• (i) Culicoides spp.;
• and/or
• (j) Lutzomyia spp.
• repelling concentration and quantity of an insect repellent composition of matter selected from the group consisting of:
• (a) The secondary C.sub.12 branched alcohol defined according to the structure:
• ##STR18## and (b) The C.sub.12 unsaturated ketone mixture consisting of a mixture of compounds defined according to the generic structure:
• ##STR19## wherein in each of the compounds of the mixture, one of the dashed lines represents a carbon-carbon double bond and each of the other of the dashed lines represents a carbon-carbon single bond.