a farmer sprays a solution of copper sulfate on plants of potato bushes. fight against fungal infections and insects.

agribusiness agricultural agriculture algaecide blower bushes care chemical chemicals copper countryside crop equipment farm farmer farming field fight fumigates fumigation fungal fungicide herbicide industry infections insect insecticide insects men nature organic pest pesticide pesticides plantation plants poison potato processing protecting protection rural solution spray sprayer spraying sprays sulfate toxic toxicant treatment use vegetables walks worker