ABSTRACT
Pesticides are applied in agricultural systems for the purpose of protecting plants from injury by insects, disease, etc. Applications are considered effective if they achieve the desired biological results and economic if there is a crop yield and quality response above and beyond the cost of chemicals and their application. Pesticides are expected to continue to play a major role for the foreseeable future in the protection of most crop systems from insect and disease damage. Improvements in chemical approaches that must also safeguard the environment can be included under the following: (1) intrinsic activity; (2) efficiency of utilization; (3) selectivity; (4) resistance; and (5) compatibility with other control measures [1]. Under the category, efficiency of utilization, application or dose transfer technology has been unduly neglected and suggests that improvements in intrinsic activity may, in fact, be offset by inefficiencies in delivery mechanisms.
