Contact Pesticide One which kills mainly through contact with the pest. In the case of insects, the active ingredient is absorbed into the body and kills the insect. With plants, the pesticide may only affect the leaf surfaces that have been treated. Cultivar A variety of plants, which retain their distinguishing features when reproduced. The movement of pesticide vapour, droplets or dust by wind or air currents, away from the target area onto or through areas not being treated.
Drift constitutes one of the major hazards of pesticide application.
The pest density above which control measures should be implemented to prevent economic losses. The ability of a pesticide to manage the target pest. Also referred to as 'effectiveness'. Emulsifiable Concentrate A formulation produced by dissolving the active ingredient and an emulsifying agent in a solvent. Environment Our surroundings , including water, air, soil, plants and animals.