Lepidoptera: Crambidae), the corn earworm
, Helicoverpa zea Boddie (Lepidoptera: Noctuidae), and S.
Agricultural Research Service scientists in College Station, Texas, have shown that signals routinely collected by the National Weather Service's (NWS) Doppler radar network could serve as an early-warning system to track the migration of corn earworms
and other nighttime traveling pests.
Less than a quarter-inch long, this compact predator controls corn earworms
early in the worms' life cycle.
Another key goal was to communicate the technology's value in controlling corn earworm
, demonstrating that losing just three kernels per ear could result in a one-bushel yield loss per acre," Kirkpatrick reports.
Curtis) Arx] (Stalker, 1984), potato leafhopper (Empoasca fabae Harris), corn earworm
[Heliothis zea (Bodie)], nematodes [Meloidogyne arenaria (Neal) Chitwood], and many other insect and disease pests, but it is moderately resistant to southern corn rootworm (Diabrotica undecimpunctata howardi Barber) (unpubl.
Pod feeding also increases the performance of many herbivores (including corn earworms
, and probably pea aphids).
, as they're called, seldom do serious damage--and control (repeatedly spraying or dusting emerging silk with carbaryl is most effective) is not very practical.
We fed the PBAN RNAi to corn earworms
in their standard laboratory diet, and it had dramatic effects.
Recovery of chromosome aberrations from natural populations of corn earworms
and tobacco budworms subjected to daily releases of partially sterile moths.
YieldGard VT Pro is a second-generation YieldGard Corn Borer trait that will offer broader control of corn insects, including corn borers, fall armyworms and corn earworms
Strict" predators, defined here as invertebrates that essentially feed exclusively on prey, are also abundant in Maryland lima beans and feed on pea aphids, corn earworms
, and other herbivores.
When corn earworms
mate, the males leave their partners with more than just sperm -- they also transfer a substance that makes the females less eager to find other mates.