1049-9644/$ see front matter Published by Elsevier doi:10.1016/j.biocontrol.2009.01.017 q Mention of trade names or commercial products i purpose of providing specific information and does n endorsement by the US Department of Agriculture. * Corresponding author. Fax: +1 956 969 4888. E-mail address: [email protected] (P.J. M The biology of the gall-forming wasp Tetramesa romana Walker...

Selenium (Se) hyperaccumulator plants can concentrate the toxic element Se up to 1% of shoot (DW) which is known to protect hyperaccumulator plants from generalist herbivores. There is evidence for Se-resistant insect herbivores capable of feeding upon hyperaccumulators. In this study, resistance to Se was investigated in seed chalcids and seed beetles found consuming seeds inside pods of Se-hy...

The pest status of diamondback moth (DBM), Plutella xylostella (L.) (Lepidoptera: Yponomeutidae), in South Africa is lower than in other countries with similar climates. A project was initiated to investigate possible reasons for this. Larval and pupal populations of DBM were monitored weekly for two years on unsprayed cabbage plots. Adult populations were also monitored continuously for two ye...