Tobacco decoction against aphids & Co.: Effective home remedy, but the bees also die. Some hobby gardeners brew a tobacco brew from cigarettes and water - but it is extremely poisonous.
nicotine and its pesticide successor products in agriculture, the neonicotinoids, have an intoxicating effect on bees and are considered to be partly responsible for the death of bees in Europe. According to studies, their consumption damages the animals' nervous system, reduces fertility and impairs their sense of orientation.