Redescription and Life History of Contortylenchus brevicomi, a Parasite of the Southern Pine Beetle Dendroctonus frontalis.

Effect of the Nematode Contortylenchus brevicomi on Gallery Construction and Fecundity of the Southern Pine Beetle.

Field-collected Dendroctonus frontalis were reared in a controlled environment. Male-female beetle pairs retrieved from galleries 1, 2, or 5 wk after introduction into pine bolts were examined for nematode parasites. Data were obtained for each pair on gallery length, egg niche construction, egg viability, and progeny survival. In a separate study, beetle pairs were reared under laboratory cond...

A Redescription of the Bark Beetle Nematode Contortylenchus brevicomi: Synonym Contortylenchus barberus (Nematoda : Sphaerulariidae).

Contortylenchus barberus is synonymized with C. brevicomi because their original separation was based on minor morphometric variations that are considered here to be intraspecific rather than interspeciflc. The ranges of body length and body width in measured specimens of C. brevicomi encompass those of the original description of C. brevicomi and C. barberus. The presence or absence of the cau...

Global and comparative protein profiles of the pronotum of the southern pine beetle, Dendroctonus frontalis.

The southern pine beetle (Dendroctonus frontalis Zimmermann) kills all pines within its range and is among the most important forest pest species in the US. Using a specialized mycangium surrounded by gland cells in the pronotum, adult females culture, transport, and inoculate two fungi into beetle galleries during oviposition. These fungal symbionts, to varying degrees, exclude antagonistic fu...

Fuel reduction and restoration of pine/hardwood ecosystems severely impacted by the recent southern pine beetle (Dendroctonus frontalis) epidemic in the southern Appalachians

MOLECULAR ECOLOGY AND EVOLUTION Characterization of Gut-Associated Bacteria in Larvae and Adults of the Southern Pine Beetle, Dendroctonus frontalis Zimmermann

We report the Þrst study of gut-associated bacteria of bark beetles using both culturedependent and culture-independent methods. These insects are major pests of pine trees but also contribute to important ecological functions such as nutrient cycling. We found members of the and -Proteobacteria and Firmicutes in larvae of the southern pine beetle, Dendroctonus frontalis Zimmermann. Sequences f...