The term insecticide is used to denote agents designed to kill only insects, but the term pesticide has a broader connotation and also includes herbicides, rodenticides, fumigants, nematocides
, algaecides, ascaricides, molluscicides, disinfectants, defoliants and fungicides.
Salient feature of modern agriculture is the maximum use of synthetic chemical fertilizers, growth regulators, soil conditioners, herbicides, pesticides, fungicides, insecticides, nematocides
Effects of nematocides
and Tagetes erecta on the control of Meloidogyne incognita and on yield of tomato.
Pesticides are substances that are intended to prevent, destroy, or repel organisms and are classified by the pests they work against, including, herbicides, insecticides, fungicides, rodenticides, nematocides
, and biocides.
A wide range of endocrine disruptors listed by Abaci et al (18) include biocides (herbicides, fungicides, insecticides, nematocides
), and industrial compounds made up of organic substances and metals (that includes mercury).
Extensive use of agrochemicals (fertilizers, fungicides, herbicides, insecticides and nematocides
) and industrial chemicals will sooner or later pollute Ethiopian soils, rivers and lakes.