نتایج جستجو برای: pyrethrins
تعداد نتایج: 617 فیلتر نتایج به سال:
Pyrethroids are synthetic chemicals similar to pyrethrins in the pyrethrum extract which is obtained from Chrysanthemum plant. Historically, pyrethroids have been classified into two classes that differ in their chemical structure and symptoms of exposure: Type I pyrethroids include allethrin, tetramethrin, d-phenothrin, permethrin, and bioresmethrin. Type II pyrethroids include cypermethrin, c...
Metofluthrin is a volatile pyrethroid insecticide. Despite being widely used as safe household insecticide, it could cause severe systemic symptoms. A 19-month-old girl was taken to the emergency department after ingesting 1 mL of mosquito repellent containing metofluthrin. After arrival, developed respiratory distress, which worsened progressively despite administration oxygen with nebulized s...
Experiments were conducted in tightly sealed pilot scale warehouses to assess the efficacy of common aerosolized insecticides on all life stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) when exposed in dishes containing 0 to 2 g of wheat flour either under pallets or out in the open. Petri dishes containing 0, 0.1, 1, or 2 g of flour were prepared with 25 eggs, 3rd instars, p...
Farming of salmon has become a significant industry in many countries over the past two decades. A major challenge facing this sector is infestation of the salmon by sea lice. The main way of treating salmon for such infestations is the use of medicines such as organophosphates, pyrethrins, hydrogen peroxide or benzoylphenyl ureas. The use of these medicines in fish farms is, however, highly re...
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