Cornelius Patrick

Biology

28 March, 09:07

A disease can be a problem one year but not the next in the same crop because

A.

there is no way to predict where disease will occur.

B.

variables, like weather, impact the presence of disease.

C.

figuring out how to combat a disease usually takes about a year.

D.

most pesticides require a lot of time to become active, sometimes months.