Host Location by Insect-Killing Nematodes
, or entomogenous
nematodes, comprise many species in the genera Steinernema (formerly
Neoaplectana) and Heterorhabditis. These nematodes require
moisture to move so they usually must seek their host insects in a soil
medium. Luckily there are many grub and insect larvae that spend part
of their time in the soil. The nematodes also can be sprayed on plant
surfaces and for a short time are available to infest insects but this
is less effective than treatment of soils. These nematodes have been successfully
used in IPM programs but they are expensive to rear (on living insects).
They are also somewhat non-discriminate, attacking many kinds of insects,
a few of which may be beneficial. However, in a crop system the reduction
of several key pests from the soil is of overriding importance.
Questions concerning these program areas can be directed to: email@example.com