EESA01H3 Lecture Notes - Lecture 8: Botulinum Toxin, Integrated Pest Management, Lawn
17 Feb 2017
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Nitrogen is an essential nutrient for plants no3 up by plants however an elevated [nitrates] can contribute to climate change and direct human health impacts. Are highly soluble in groundwater and taken. Nitrites in water change hemoglobin to form that cannot carry oxygen. Causes methemoglobinemia (blue baby syndrome) in young infants. Pesticide = chemical used to kill pests any animal or plant that interferes with human wellbeing or interest by carrying disease or causing discomfort in people or in the animals we care about. Active ingredient = the one intended to kill the pest the chemical that kills the pest. Not a biological category but rather a cultural one. Insecticides: i(cid:374)orga(cid:374)i(cid:272) (cid:272)o(cid:373)pou(cid:374)ds chlorinated hydrocarbon insecticides, p(cid:455)rethru(cid:373) (cid:894)fro(cid:373) (cid:272)hr(cid:455)sa(cid:374)the(cid:373)u(cid:373) pla(cid:374)t(cid:895) - natural, orga(cid:374)o(cid:272)hlori(cid:374)e i(cid:374)se(cid:272)ti(cid:272)ides disrupt the cns causing convulsions and death. Many banned in more developed countries; stockholm convention. Organophosphate insecticides nerve gases to be used in war originally. Carbamate insecticides widely used for gardens and mosquitos.
