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no catnip does.
Middle school science fair projects can be loads of fun. A couple of ideas are, What glows under a black light? And, Does catnip repel roaches better than DEET?
The best way to repel black flies while outdoors is by wearing a commercial bug repellent. These can be sprayed onto skin and clothing. Anything that includes DEET works well.
No, DEET is the organic compound diethyltoluamide.
DEET is a very strong insect repelent!
Deet = money + bank
Yes, DEET spray will kill scabies. DEET spray can be purchased at most retail store such as Walmart and pharmacy's such as CVS.
DEEt is an acronym for N,N-Diethyl-meta-toluamide, a pesticide.
C12h17no
Citronella is good or deet products to keep them away from you personally.
Permethrin is a suspected human carcinogen. DEET is an acetylcholinesterase inhibitor. It's considered safe enough to use on human skin (in low concentrations). A mixture of a permethrin-based insecticide and a DEET based one shouldn't be any worse than the permethrin one alone. We'd have to know more about what kind of risk you're talking about to give you a better answer than that.
DEET