J. Econ. Entomol. 86(3): 697-705 (1993) ABSTRACT Eleven populations of diamondback moth, Plutella xylostella (L.), were collected in 1990 from Brassica plants in six states of the United States and in Indonesia and tested for their responses to two formulations of Bacillus thuringiensis subsp. kurstaki (Javelin we and DipeI2X), permethrin, and methomyI. Populations from Florida that had been tr...

Leaf bioassays and oviposition choice tests were used to investigate the effects of transgenic broccoli expressing Cry1Ac toxin of Bacillus thuringiensis (Berliner) on susceptible and resistant Plutella xylostella (L.) larvae. Survival of susceptible 2nd instars on Cry1Ac-expressing broccoli declined from 99.1 to 19.2% at 24 and 72 h, respectively, and larvae exhibited an average weight loss of...

In laboratory experiments we compared the mortality of Plutella xylostella L. eggs induced by six products of trichogrammatid egg parasitoids. Five of the species were commercially available, and the sixth is under development. Each of the six products represented a single species of trichogrammatid (Trichogrammatoidea bactraeNagaraja,Trichogrammapretiosum Riley, T. ostriniae Pan & Chen, T. pla...

Potential trap crops for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), were evaluated through a series of ovipositional preference and larval survival experiments in outdoor screenhouses in 2002 and 2003. Hosts examined as trap crops were glossy and waxy collards, Brassica oleracea L. variety acephala; Indian mustard, Brassica juncea (L.) Czern; and yellow rocket,Ba...

Habitat management is an ecologically based approach to suppress pest densities, utilising properties of non-crop vegetation improve the impact natural enemies or directly affect behaviour. Research in this has escalated dramatically century, extending uptake some crops, but adoption Australia been lower than overseas. Here, we address need Australian vegetable sector reduce reliance on insecti...