Biology 2485B Lecture Notes - Atrazine
17 Apr 2014
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Document Summary
India grain production: total production has increased greatly fast growing, production per person has kept up with population growth, gone from importing grain to exporting, world consumption = 2000 cal/day, developing countries consume 25% more calories per capita, world increase in production by 250% The green revolution: technology, varieties, irrigation, fertilization, pest control, mechanization, developed these technologies and exported around the world. Ddt is banned: organophoshates non persistent degrade on exposure to sunlight, water, highly toxic dangerous to applicators malathion used for mosquito control (and other purposes, carbamates used in 1930s and large scale in 1950s, discontinued in 1964 for less toxic means, non persistent toxic to birds and fish, pyrethroids least toxic than organophosphates and carbamates, raid, ant and bee killers, toxic to aquatic species, phenoxy acids in 2,4 d broadleaf herbicide, effects on humans and mammals, conflicting views of its toxicity and persistent.
