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This page was last edited on 30 September 2021, at 02:08 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
An agrochemical or agrichemical, a contraction of agricultural chemical, is a chemical product used in industrial agriculture. Agrichemical typically refers to biocides ( pesticides including insecticides , herbicides , fungicides and nematicides ) alongside synthetic fertilizers .
The word pesticide derives from the Latin pestis (plague) and caedere (kill). [5]The Food and Agriculture Organization (FAO) has defined pesticide as: . any substance or mixture of substances intended for preventing, destroying, or controlling any pest, including vectors of human or animal disease, unwanted species of plants or animals, causing harm during or otherwise interfering with the ...
2,4-D, an early synthetic herbicide inspired by the study of auxins, had a profound impact on crop yields, starting in the 1940s.. Agricultural chemistry is the chemistry, especially organic chemistry and biochemistry, as they relate to agriculture.
Agrochemicals typically have a lower number of hydrogen bond donors. [4] For example, over 70% of insecticides have no hydrogen bond donor, and over 90% of herbicides have two or fewer. Desirable agrochemicals have residual activity and persistence of effect lasting up to several weeks to allow large spray intervals.
This page was last edited on 14 December 2008, at 19:31 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The biological activity of a pesticide, be it chemical or biological in nature, is determined by its active ingredient (AI - also called the active substance). Pesticide products very rarely consist of the pure active ingredient.
A manual backpack-type sprayer Space treatment against mosquitoes using a thermal fogger Grubbs Vocational College students spraying Irish potatoes. Pesticide application is the practical way in which pesticides (including herbicides, fungicides, insecticides, or nematode control agents) are delivered to their biological targets (e.g. pest organism, crop or other plant).