Summary Control of white grubs, the sporadic root-feeding larvae scarabid beetles, is difficult due to their cryptic nature and resistance chemical insecticides. Potential exists for use entomopathogenic nematodes (EPN) such control. The successful infection grubs by EPN, however, limited grubs’ innate reduced susceptibility in form behavioural, morphological physiological defences. This study ...

Virulence of commercial strains entomopathogenic nematode (EPN) Steinernema carpocapsae (Weiser), feltiae Filipjev and Heterorhabditis bacteriophora Poinar (Rhabditida: Steinernematidae, Heterorhabditidae), were tested on young females Pulvinaria hydrangeae Steinweden, Partenolecanium corni (Bouché) Coccus pseudomagnoliarum (Kuwana) (Hemiptera, Coccidae) a native strain H. was citricola scale, ...

Photorhabdus are motile Gram-negative bacteria that have a mutualistic association with entomopathogenic Heterorhabditis nematodes. Nematodes vector the bacteria from one insect host to another, while the bacterial symbiont produces toxins and secondary metabolites that kill that the insect host. In this study, we characterize the bacterial symbiont of Heterorhabditis sonorensis, recently disco...

The Indianmeal moth, Plodia interpunctella (Hübner), is a cosmopolitan pest of stored products, infesting most commodities in warehouses and grain bins. We studied the susceptibility of Indianmeal moth adults and larvae to seven entomopathogenic nematode species and strains. The nematodes studied wereHeterorhabditis bacteriophora Poinar (HP88, Lewiston, andOswego strains); H. indicaPoinar,Karun...

Directly viewing soil-dwelling entomopathogenic and plant-parasitic nematodes in situ is difficult, if not impossible. As a result, researchers have developed a diverse array of bioassays which assess nematode behavioral traits within arenas designed to simulate various aspects of the natural habitat. However, reliably rendering what we can see in the laboratory into accurate predictions of how...