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nematode populations from fields. A few examples of non-host
crops include wheat, corn and certain types of oil radish.
Chemical options to help manage nematodes also exist. With
the right foliar spray, potato growers can protect their crop against
nematodes and increase the quality and quantity of their seasonal
harvest.
One such treatment is Movento from Bayer. Movento insecti-
cide's two-way systemic action moves throughout the entire plant
system, allowing for applications to the leaves and thereby provid-
ing protection from above-ground pests. It also moves to the roots
to protect plants from nematodes.
A potato infected with
Columbia root-knot
nematode (left) and a
healthy potato. USDA-
ARS photo by Peggy Greb
Nematode eggs and juveniles of the golden nema-
tode, Globodera rostochiensis. Eggs and juveniles are con-
tained within a cyst (the big brown sac on the right). The
sac shown here has broken open, releasing the eggs and
juveniles. USDA-ARS photo by Xiaohong Wang
Microscope image of potato cyst nematode eggs spilling out
of a ruptured cyst. Researchers continue to test trap crops
to find ones that can make the pest hatch from these cysts
and then starve for lack of a host. Photo by Potato Cyst Nem-
atode Research Group/ARS/APHIS.
