Lol, well I sure wouldn't be giving those little guys a smoke. I figure you just douse the spray on, if you get a bad infestation and you'll force em to drink some of it eventually.There is truth to a tobacco wash. Yet in my studies I have found tobacco simply an additive to other organic washes. Bugs can overdose on nicotine, but getting the critters to smoke a pack is a whole nuther can of soup, as they are usually underage lol!
Cigars have a TON of nocotine in them too. I mean you can smoke some cigars and it feels like you drank a full pot of coffee. The tobacco leaves are so rich and pure compared to cigarettes and other washed out chemical tobaccos.