Agrochemical F.C.: James Omondi|Organophosphate: An organophosphate (sometimes abbreviated OP) or phosphate ester is the general name for esters of phosphoric acid. Many of the most important biochemicals are organophosphates, including DNA and RNA as well as many cofactors that are essential for life.Klaus MosbachRice weevilCarnauba wax: Carnauba ( or , , ), also called Brazil wax and palm wax, is a wax of the leaves of the palm Copernicia prunifera (Synonym: Copernicia cerifera), a plant native to and grown only in the northeastern Brazilian states of Piauí, Ceará, and Rio Grande do Norte. It is known as "queen of waxes" and in its pure state, usually comes in the form of hard yellow-brown flakes.Pesticides in the United States: Pesticides in the United States are used predominantly by the agricultural sector,Kellogg RL, Nehring R, Grube A, Goss DW, and Plotkin S (February 2000), Environmental indicators of pesticide leaching and runoff from farm fields. United States Department of Agriculture Natural Resources Conservation Service.Herbicide: Herbicide(s), also commonly known as weedkillers, are pesticides used to control unwanted plants. Selective herbicides control specific weed species, while leaving the desired crop relatively unharmed.CholinesteraseInsecticide: An insecticide is a substance used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively.Zimbabwe Congress of Trade Unions: The Zimbabwe Congress of Trade Unions is the primary trade union federation in Zimbabwe. The general secretary of ZCTU is Wellington Chibebe and the president is Lovemore Matombo.