Fitness of Diabrotica barberi, Diabrotica longicornis, and Their Hybrids (Coleoptera: Chrysomelidae)

Fitness of Diabrotica barberi, Diabrotica longicornis, and Their Hybrids (Coleoptera: Chrysomelidae)

Diabrotica barberi Smith & Lawrence, the northern corn rootworm, and Diabrotica longicornis (Say) (Coleoptera: Chrysomelidae), are currently recognized as closely related chrysomelid species. Hybridization has been proposed to occur between them, although the viability of hybrids has never been tested. The objective of this study was to assess life-history parameters of D. barberi,D. longicorni...

Field Introgression of Diabrotica barberi and Diabrotica longicornis (Coleoptera: Chrysomelidae) Based on Genetic and Morphological Characters

Diabrotica barberi Smith & Lawrence and Diabrotica longicornis (Say) (Coleoptera: Chrysomelidae) are considered to be sister species, and it has been proposed that the two species may hybridize under field conditions. The objective of this study was to examine genetic and morphological characters of D. barberi and D. longicornis for evidence of field introgression. Both species were collected f...

Hybridization in Diabrotica barberi Smith and Lawrence and Diabrotica longicornis (Say) (Coleoptera: Chrysomelidae): Biology, behavior, field introgression, and a reevaluation of taxonomic status

A Technique to Morphologically Differentiate Larvae of Diabrotica virgifera virgifera and D. barberi (Coleoptera: Chrysomelidae)

Susceptibility of northern corn rootworm Diabrotica barberi (Coleoptera: Chrysomelidae) to mCry3A and eCry3.1Ab Bacillus thuringiensis proteins.

The susceptibility of the northern corn rootworm Diabrotica barberi (Smith & Lawrence) to mCry3A and eCry3.1Ab proteins derived from Bacillus thuringiensis (Bt) was determined using a diet bioassay. Northern corn rootworm neonates were exposed to different concentrations of mCry3A and eCry3.1Ab, incorporated into artificial diet. Larval mortality was evaluated after 7 d. The mCry3A and eCry3.1A...