A canopy turbulent air jet sprayer was evaluated and found to achieve better coverage of both sides of cotton leaves. This opens up the possibility for the use of lower rates of conventional insecticides and perhaps also non-toxic crop oils etc. for the control of cotton whitefly Bemisia tabaci (Gennadius).
The turbulent air jet canopy sprayer can cover both sides of all the leaves of cotton plants and control cotton whitefly without polluting the environment. The turbulent air jet spraying technology can be adapted to other row and orchard crops to achieve better spray penetration and coverage, and to save chemicals with less pollution.