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Diabrotica undecimpunctata, the spotted cucumber beetle or southern corn rootworm, is a species of cucumber beetle that is native to North America. The species can be a major agricultural pest insect in North America. Spotted cucumber beetles cause damage to crops in the larval and adult stages of their life cycle.
Crop rotation is a consistent and economical means of controlling rootworms the season following an outbreak in corn-growing areas where rootworm beetles primarily lay eggs in corn. As a way to reduce rootworm densities, it is more effective than insecticides. [2] Corn rootworm larvae must feed on corn roots to develop and mature properly.
Scouts often carry the following with them into the field: Scout Report Forms; a clipboard and writing utensils; pocket knife (splitting stalks and cutworm scouting); magnifying glass for accurate pest ID, containers (bags, vials, etc.) for collecting plant and insect specimens or soil and water samples; mechanical hand counter (for accurately ...
Diabrotica barberi R. Smith & Lawrence, 1967 - northern corn rootworm Diabrotica barclayi Derunkov, Rocha Prado, Tishechkin & Konstantinov, 2015 Diabrotica balteata LeConte, 1865 - banded cucumber beetle
Diabrotica barberi, the northern corn rootworm, is a species of skeletonizing leaf beetle in the family Chrysomelidae. It is found in North America . [ 1 ] [ 2 ] [ 3 ] Adults feed on corn, and, when corn is unavailable, goldenrod pollen.
It includes two subspecies, Diabrotica virgifera virgifera (the western corn rootworm) and Diabrotica virgifera zeae (the Mexican corn rootworm). [2]
Here's when and how to safely thaw a frozen turkey for Thanksgiving, including methods for thawing in the refrigerator or a water bath.
During 2009 and 2010, some Iowa fields showed severe injury to corn producing Bt toxin Cry3Bb1 by western corn rootworm. During 2011, mCry3A corn also displayed insect damage, including cross-resistance between these toxins. Resistance persisted and spread in Iowa. Bt corn that targets western corn rootworm does not produce a high dose of Bt ...