title: Effect of Entomopathogenic Nematodes on Mesocriconema xenoplax Populations in Peach and Pecan.
abstract: The effect of Steinernema riobrave and Heterorhabditis bacteriophora on population density of Mesocriconema xenoplax in peach was studied in the greenhouse. Twenty-one days after adding 112 M. xenoplax adults and juveniles/1,500 cm(3) soil to the soil surface of each pot, 50 infective juveniles/cm(2) soil surface of either S. riobrave or H. bacteriophora were applied. Another entomopathogenic nematode application of the same density was administered 3 months later. The experiment was repeated once. Mesocriconema xenoplax populations were not suppressed (P </= 0.05) in the presence of either S. riobrave or H. bacteriophora 180 days following ring nematode inoculation. On pecan, 200 S. riobrave infective-stage juveniles/cm(2) were applied to the soil surface of 2-year-old established M. xenoplax populations in field microplots. Additional applications of S. riobrave were administered 2 and 4 months later. This study was terminated 150 days following the initial application of S. riobrave. Populations of M. xenoplax were not suppressed in the presence of S. riobrave.
authors.forename: A P
authors.initials: AP
authors.lastname: Nyczepir
authors.forename: D I
authors.initials: DI
authors.lastname: Shapiro-Ilan
authors.forename: E E
authors.initials: EE
authors.lastname: Lewis
authors.forename: Z A
authors.initials: ZA
authors.lastname: Handoo