Quality control applications for recovering an inbred colony of Bagrada hilaris (Hemiptera: Pentatomidae).

The invasive stink bug, Bagrada hilaris (Burmeister), recently became established in the southwestern United States and has become a major pest of broccoli and other cole crops. Due to concerns about its possible establishment in Florida, a colony of this pest was maintained in quarantine to conduct research on its environmental requirements. The colony was reared reliably with approximately 300 adults per generation but began to decline in generation 16.

Review of the Neotropical genus with descriptions of three new species-group taxa (Hemiptera, Heteroptera, Pentatomidae).

The genus Bergroth, 1911 (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Chlorocorini) is redescribed and five species-group taxa are recognized, keyed, their diagnostic characters illustrated, and the distribution reviewed. Among the five taxa, two species and one subspecies are recognized as new: Bergroth, 1911 (Brazil, Ecuador, French Guiana, Guyana, Peru, Suriname), (Belize, Costa Rica, Guatemala, Mexico, Panama), (French Guiana), Becker & Grazia-Vieira, 1971 (Bolivia, Brazil, Ecuador, Peru), and (Guyana). The structure of the male genital capsule was found to be the only reliable character for identifying species-group taxa.

Movement and biological activity of drip-applied 1,3-dichloropropene and chloropicrin in raised mulched beds in the southeastern USA.

Movement and biological activity of 1,3-dichloropropene (1,3-D) and chloropicrin applied through drip irrigation in raised beds was investigated at three locations in the southeastern USA. Tests were conducted in fields with dense populations of nutsedge (Cyperus spp), with one location also having a high level of soil nematodes, both of which served as biological indicators of the distribution of effective concentrations of 1,3-D and chloropicrin. Objectives were (1) to gain a better understanding of 1,3-D and chloropicrin movement and the extent of biological activity outside of the wetted bed area, and (2) to examine the effect of application rate, application concentration and subsequent irrigation events on movement and activity of 1,3-D and chloropicrin.