Diazinon insecticide crystals, LM

Diazinon insecticide crystals, LM

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Credit: DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY

Caption: Light micrograph (LM) of Diazinon (insecticide) crystals. Diazinon is a non-systemic, organophosphate, insecticide used to control residential insects such as, cockroaches, silverfish, ants and fleas. Diazinon is a thiophosphoric acid and kills insects by inhibiting acetylcholinesterase, an enzyme needed for proper nervous system function. Diazinon has a low persistence in soil. The half-life is 2 to 4 weeks. The symptoms associated with diazinon poisoning in humans include weakness, headaches, tightness in the chest, blurred vision, non-reactive pinpoint pupils, salivation, sweating, nausea, vomiting, diarrhoea, abdominal cramps, and slurred speech. In 2004 the EPA made it unlawful to sell diazinon in agricultural products. Magnification: x40 when shortest axis printed at 25 millimetres.

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Keywords: 930123-26, acethylcholinesterase, acid, colored, coloured, control, crystal, crystals, diazinon, false-colored, false-coloured, inhibitor, insect, insecticide, light, lm, micrograph, non-systemic, organophosphate, pesticide, poisoning, thiophosphoric

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