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Entomology

University of Tennessee, Knoxville

Corn

Publication Year

Articles 1 - 8 of 8

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W196 Sourthwestern Corn Borer In Tennessee, The University Of Tennessee Agricultural Extension Service Apr 2010

W196 Sourthwestern Corn Borer In Tennessee, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

No abstract provided.


W195 European Corn Borer, The University Of Tennessee Agricultural Extension Service Apr 2010

W195 European Corn Borer, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

No abstract provided.


Sp341-Q Sugarcane Beetle In Field Corn, The University Of Tennessee Agricultural Extension Service Apr 2010

Sp341-Q Sugarcane Beetle In Field Corn, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

The sugarcane beetle is an occasional pest of field corn in Tennessee. Infestations have been spotty to date and not too damaging in terms of stand and yield losses. However, the beetle caused serious damage in corn during the 2001 and 2002 growing seasons. The fields affected were corn planted into pasture, sod or no-till and some conventional tillage corn.


Pb1768 2010 Insect Control Recommendations For Field Crops –, The University Of Tennessee Agricultural Extension Service Dec 2009

Pb1768 2010 Insect Control Recommendations For Field Crops –, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

An Integrated Pest Management (IPM) program integrates control tactics including cultural practices, variety selection, biological control and insecticides to manage insect pest populations so that economic damage and harmful environmental side effects are minimized. Insecticides should only be used on an as-needed basis; therefore, insect scouting must be conducted regularly throughout the season to determine if an insecticide application is warranted.


Sp290-J Cutworms In Field Corn, The University Of Tennessee Agricultural Extension Service Mar 2007

Sp290-J Cutworms In Field Corn, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

Field corn is susceptible to damage from several species of cutworms that occur in Tennessee. Usually, this damage occurs in early planted corn when the temperatures are cool and the ground is moist. Cutworms are less likely to cause economic damage after corn reaches 2 feet in height.


Sp341-G Corn Earworm On Sweet Corn, The University Of Tennessee Agricultural Extension Service Aug 2005

Sp341-G Corn Earworm On Sweet Corn, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

The corn earworm, Helicoverpa zea (Boddie), is the most serious insect pest of sweet corn in Tennessee. This pest feeds directly on the market product.


Sp341-K Common Stalk Borer In Field Corn, The University Of Tennessee Agricultural Extension Service Apr 2005

Sp341-K Common Stalk Borer In Field Corn, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

The common stalk borer in Tennessee is reported to attack several crops in addition to field corn. However, the preferred host of the insect is giant ragweed. This preference is due to the largeness of the stem in which the larvae can mature. Fields of corn planted into a no-till situation are preferred by the moths because of the grassy weeds in those fields. The adult moth deposits eggs on grassy weeds in the early spring. Later, the larvae will migrate to any corn planted in the fields.


Sp341-Y Western Corn Rootworm, The University Of Tennessee Agricultural Extension Service Mar 2005

Sp341-Y Western Corn Rootworm, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

Three species of corn rootworms are found in Tennessee. The Western corn rootworm is the most destructive of the three species. This insect is now prevalent from Texas to the Dakotas, and has moved into Tennessee within the past 10 to 15 years. Until 1955, this rootworm was found in Nebraska, Colorado, Kansas, South Dakota and Iowa. The Western corn rootworm has traditionally moved into the territory of the Northern corn rootworm, which is also found in Tennessee.