Lec24_Insecticides

Lec24_Insecticides - Insecticides Chemical Control and the...

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Insecticides, Chemical Control, and the Pesticide Dilemma PESTICIDES Acaricides mites Bactericides bacteria Fungicides fungi Herbicides weeds Insecticides insects Nematicides nematodes Rodenticides rodents Use of Chemicals for Insect Control is not New Homer , the Greek poet, referred to burning sulfur to fumigate home in 1000 BC. The Chinese writer Shen Nung Pen Tshao Ching ( Pharmacopoeia of the Heavenly Husbandman , writtten between 100 and 200 AD) mentioned the use of mercury and arsenic for control of body lice and the use of a Liliaceous plant for killing insect pests of humans.
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Modern Use of Insecticides Modern use dates to 1867 when Paris Green found to be effective against the Colorado Potato Beetle 1868 - Kerosene emulsions sprayed on fruit trees 1877 - Hydrogen cyanide used for museum case fumigation 1878 - London purple (arsenical) used as substitute for Paris Green 1880 - Lime-sulfur mixture used for scale insect control 1892 - Lead arsenate used for gypsy moth control in Massachusetts Modern Era - Use of Synthetic Organic Compounds 1939 - Paul Muller discovers DDT as an insecticide. Discovery revolutionized insect control and marked the beginning of the development and application of synthetic organic insecticides. Current Insecticides: most are synthetic organic chemicals most are contact poisons, stomach poisons, or fumigants tend to be highly insoluble in water must be formulated into usable products
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Formulation Technical Grade Material Processing and Additives Commercial Insecticide Formulation
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  • Fall '06
  • RDFell
  • United States Environmental Protection Agency, Pesticide, Quality Protection Act, Fumigants GABA Receptor, Nicotinoids Fumigants GABA, Carbamates Synthetic Pyrethroids

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Lec24_Insecticides - Insecticides Chemical Control and the...

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