Electrodyne sprayer was discovered by

Answer: Option A

Electrodyne sprayer was discovered by Coffee.
Electrodyne sprayer project water, and are used to kill weeds and destroy pests. By applying fertilizers, pesticides, and herbicides on crops electrodyne sprayers contribute to crop health and quality.
A programme the investigation was started in mid-1977 in Spain into the performance of the 'Electrodyn' sprayer for the control of insect pests on cotton.