Entomopathogenic nematodes (EPNs) are known agents in pest biological control. Environmental factors can influence on populations of soil-inhabitant like EPNs agricultural lands. In the current study, after selecting a suitable study site (33.20-33.42 N and 48-48.55 E), soil sampling (250 samples) May to July 2019, infectious juveniles were extracted from samples according bait method. Accordin...

A stilbene fluorescent brightener, Tinopal LPW, was used as an ultraviolet (UV) protectant for the entomopathogenic nematode Steinernema carpocapsae (All strain). Irradiation of an aqueous suspension of nematodes produced a LC in 15.7 minutes under a sunlamp and in 31.7 minutes in direct sunlight. Irradiation by both sunlamp and sunlight of a suspension of nematodes in Tinopal LPW did not reduc...

Cycles in biological populations have been shown to arise from enemy-victim systems, delayed density dependence, and maternal effects. In an initial effort to model the year-to-year dynamics of natural populations of entomopathogenic nematodes and their insect hosts, we find that a simple, nonlinear, mechanistic model produces large amplitude, period two population cycles. The cycles are genera...

Entomopathogenic nematodes (EPNs) (Steinernematidae and Heterorhabditidae) can control pests due to the mutualistic association with bacteria that kill the host by septicemia and make the environment favorable for EPNs development and reproduction. The diversity of EPNs in Brazilian soils requires further study. The identification of EPNs, adapted to environmental and climatic conditions of cul...

Entomopathogenic nematodes (genera Steinernema and Heterorhabditis) can control a wide variety of economically important pests (Shapiro-Ilan et al., 2002), and are generally applied in aqueous suspension through a variety of agricultural spray equipment or irrigation systems (Grewal, 2002). These nematodes have also been shown to be effective when applied in their infected-host cadavers (Creigh...

Production and application technology is critical for the success of entomopathogenic nematodes (EPNs) in biological control. Production approaches include in vivo, and in vitro methods (solid or liquid fermentation). For laboratory use and small scale field experiments, in vivo production of EPNs appears to be the appropriate method. In vivo production is also appropriate for niche markets and...

A study of nematodes from a semi-artificial and controlled composting process in Eastern Flanders revealed 35 taxa, 21 of which were new records for Belgium. An updated checklist of free-living, plant-parasitic and entomopathogenic nematodes from terrestrial, freshwater and brackish water habitats in Belgium is presented. The Belgian non-marine nematofauna comprises 418 taxa, representing 4 sub...

Spores of an unidentified bacterium were discovered adhering to cuticles of third-stage infective juvenile (IJ) Steinernema diaprepesi endemic in a central Florida citrus orchard. The spores were cup-shaped, 5 to 6 mm in length, and contained a central endospore. Based on 16S rDNA gene sequencing, the bacterium is closely related to the insect pathogens Paenibacillus popilliae and P. lentimorbu...

Nematodes are worm-shaped nearly microscopic animals, many of which are virtually invisible to the unaided eye when they are in the soil or within plant material. Of the known nematode species, approximately 50%, 25%, 15%, and 10% are free-living, marine, animal parasites, and plant parasitic nematodes (PPNs), respectively. Freeliving nematodes are very important in maintaining the soil bio-dyn...