This is the time of year to begin checking old pastures and other grassy fields where you plan to plant corn for these two pests.
(This; is; the time of year to begin checking old pastures and other grassy fields) (you; plan; to plant corn for these two pests) Context(you plan,List([86, 94))):(you; plan to plant; corn; for these two pests)
you plan,List([86, 94))
This you you
is plan plan to plant
the time of year to begin checking old pastures and other grassy fields
to plant corn for these two pests
corn for these two pests