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Permethrin is a medication and an insecticide. [6] [7] As a medication, it is used to treat scabies and lice. [8]It is applied to the skin as a cream or lotion. [6] As an insecticide, it can be sprayed onto outer clothing or mosquito nets to kill the insects that touch them.
Cypermethrin is a broad-spectrum insecticide, which means it kills beneficial insects as well as the targeted insects. [14] Fish are particularly susceptible to cypermethrin, [ 15 ] [ 16 ] but when used as directed, application around residential sites poses little risk to aquatic life. [ 17 ]
EPA registers pesticides and insecticides as either unclassified or restricted use pesticide (RUP). Unclassified pesticide is available over-the-counter. This licensing program exists in cooperation with USDA and state regulatory agencies. [71] Two items are required by law for all registered pesticides and insecticides. [72] [73] [74] Product ...
A crop-duster spraying pesticide on a field A self-propelled crop sprayer spraying pesticide on a field Pesticides are substances that are used to control pests. They include herbicides, insecticides, nematicides, fungicides, and many others (see table). The most common of these are herbicides, which account for approximately 50% of all pesticide use globally. Most pesticides are used as plant ...
Pesticide resistance is increasing. Farmers in the US lost 7% of their crops to pests in the 1940s; over the 1980s and 1990s, the loss was 13%, even though more pesticides were being used. [1] Over 500 species of pests have evolved a resistance to a pesticide. [4] Other sources estimate the number to be around 1,000 species since 1945. [5]
Pyriproxyfen is a pesticide which is found to be effective against a variety of insects. [3] It was introduced to the US in 1996, to protect cotton crops against whitefly.It has also been found useful for protecting other crops. [4]
Diazinon is a contact insecticide which kills insects by altering normal neurotransmission within the nervous system of the insect. As mentioned above, diazinon inhibits the enzyme acetylcholinesterase (AChE), which hydrolyzes the neurotransmitter acetylcholine (ACh) in cholinergic synapses and neuromuscular junctions .
Cyhalothrin (ISO common name [3]) is an organic compound that, in specific isomeric forms, is used as a pesticide. [4] It is a pyrethroid, a class of synthetic insecticides that mimic the structure and properties of the naturally occurring insecticide pyrethrin which is present in the flowers of Chrysanthemum cinerariifolium.
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