18. The passage refers to nematicides as being used to control:

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

Locate to line 26 according to the nematicides of the question stem, "used to control roundworm pests" (professional terms need to be marked when reading for easy positioning)

F item: in line with L26 positioning information.

GHJ item: does not meet the function of nematicides.