Entomopathogenic nematodes in the genus Steinernema and Heterorhabditis have been successfully commercialized as biological control agents for a variety of curculionid species. Nematode-based products have been introduced for: 1) root weevils, Otiorhynchus spp. 2) billbugs, Sphenophorus spp. 3) the apopka weevil, Diaprepes abbreviatus, and 4) the citrus root weevil, Pachnaeus litus. Several oth...

The objective of this studywas to determine the susceptibility of the strawberry crown moth, Synanthedon bibionipennis (Boisduval) (Lepidoptera: Sesiidae) larvae to two species of entomopathogenic nematodes. The entomopathogenic nematodes Steinernema carpocapsae (Weiser) strain Agriotos and Heterorhabditis bacteriophora (Steiner) strain Oswego were evaluated in laboratory soil bioassays and the...

Entomopathogenic nematodes are potent biopesticides that can be mass-produced by in vitro or in vivo methods. For in vivo production, consistently high infection rates are critical to efficiency of the process. Our objective was to optimize in vivo inoculation of Steinernema carpocapsae and Heterorhabditis bacteriophora in Galleria mellonella and Tenebrio molitor by determining effects of inocu...

Widespread planting of crops genetically engineered to produce insecticidal toxins from the bacterium Bacillus thuringiensis (Bt) imposes selection on many key agricultural pests to evolve resistance to Bt. Fitness costs can slow the evolution of Bt resistance. We examined effects of entomopathogenic nematodes on Þtness costs of Bt resistance in the pink bollworm, Pectinophora gossypiella (Saun...

We report the 4.3-Mb genome sequence of Xenorhabdus nematophila strain F1, a Gram-negative bacterium that is a symbiont of the entomopathogenic nematode Steinernema carpocapsae and pathogenic by direct injection for a wide variety of insects.

We report the draft genome sequence of Gram-negative bacterium Pseudomonas aeruginosa NA04, isolated from the entomopathogenic nematode Heterorhabditis indica MOR03. The draft genome consists of 54 contigs, a length of 6.37 Mb, and a G+C content 66.49%.

in order to assay the pathogenicity of the entomopathogenic nematode, heterorhabditis bacteriophora poinar, 1975 on the indigenous population of common earwig, forficula auricularia l., several concentrations including 100, 250, 500, 1000, 1500, 2000 and 3000 (ijs/ml of dw) were used in the laboratory conditions. in this experiment, effects of time (f 1, 91= 4.22, p

We determined the effects of crop residue on the persistence of an entomopathogenic nematode, Steinernema carpocapsae. During 2 consecutive years, nematodes were applied at rates of 2.5 x 10 and 1.0 x 10 infective juveniles/m(2) to small field plots planted with corn. Nematode persistence was monitored by exposing Galleria mellonella larvae to soil samples from plots with and without crop resid...

the entomopathogenic fungus, verticillium epiphytum was isolated from the infected specimens of thrips tabaci collected in mashhad in april 2011. the fungus has been previously reported from rusts and sugar beet cyst nematode heterodera schachtii. this is the first record of v. epiphytum on t. tabaci in the world.

Methods are described for standardized in vivo production, rapid harvest, and storage, in a concentrated form, of infective juveniles of the entomopathogenic nematode, Steinernema carpocapsae Mexican strain Kapow selection. Nematodes were stored in nematode wool configurations, consisting of mats of intertwined infective juveniles. Freshly harvested nematodes are readily available in adequate q...