Mustard (Brassica and Sinapis spp.) green manures tilled into the soil preceding potato crops act as biofumigants that are toxic to plant–parasitic nematodes, providing an alternative to synthetic soil fumigants. However, it is not known whether mustard green manures also kill beneficial entomopathogenic nematodes (EPNs) that contribute to the control of pest insects. We used sentinel insect pr...

Dalotia coriaria (Kraatz) (Coleoptera: Staphylinidae) and entomopathogenic nematodes (Rhabditida: Heterorhabditidae and Steinernematidae) are two soil-dwelling biological control agents used to manage western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) and fungus gnats Bradysis spp. (Diptera: Sciaridae) in glasshouses. Growers often use multiple natural enemie...

Entomopathogenic nematodes were screened for eYcacy against the cottonwood borer, Plectrodera scalator (Fabricius). Steinernema feltiae SN and S. carpocapsae All killed 58 and 50% of larvae, respectively, in Wlter paper bioassays but less than 10% in diet cup bioassays. S. glaseri NJ, S. riobrave TX, and H. indica MG-13 killed less than 10% of larvae in both assays. H. marelata IN was ineVectiv...

insect immunity comprises behavioral, physical and innate immunity. in this study, innate immune response of the greater wax moth larvae, galleria mellonella against two species of entomopathogenic nematodes, heterorhabditis bacteriophora and steinernema feltiae,   as important biocontrol agents were studied. total haemocyte count in larvae injected with h. bacteriophora increased immediately. ...

Taking advantage of their optical transparency, we clearly observed the third stage infective juveniles (IJs) of Steinernema feltiae freezing under a cryo-stage microscope. The IJs froze when the water surrounding them froze at -2°C and below. However, they avoid inoculative freezing at -1°C, suggesting cryoprotective dehydration. Freezing was evident as a sudden darkening and cessation of IJs'...

In 2009, three Slovenian strains of entomopathogenic nematodes) and commercial product Entonem (active ingredient S. feltiae), were tested under laboratory conditions for their activity against adult cereal leaf beetles (Oulema melanopus). The nematode strains were tested at four different doses (250, 500, 1000, and 2000 infective juveniles/adult) and at three temperatures (15, 20, and 25 oC). ...

The lesser peachtreeborer, Synanthedonpictipes (Grote andRobinson), is an important pest of Prunus spp.We determined the susceptibility of S. pictipes to six entomopathogenic nematode species:Heterorhabditis bacteriophoraPoinar,H. indicaPoinar, Karunakar andDavid,H.marelatusLiu and Berry, Steinernema carpocapsae (Weiser), S. feltiae (Filipjev), and S. riobrave Cabanillas, Poinar and Raulston. N...