title: Establishment and recycling of Romanomermis culicivorax (Nematoda: Mermithidae) in Louisiana ricelands.
abstract: The postparasitic stage of Romanomermis culicivorax, applied at dosage rates of 0.025 and 0.05 g/m2, was able to establish, recycle and overwinter in a riceland habit in southern Louisiana. Percent parasitism ranged from 0 to 54.1% during the 22-month study. Parasitism of Psorophora columbiae larvae was significantly greater (P less than 0.05) along levee ditches than in the central portions of the fallow riceland plots on 3 of 4 sampling dates in 1983. As percent parasitism increased within the population of Ps. columbiae located in bioassay containers, the degree of superparasitism also increased.
authors.affiliation: Dept. of Entomol, Louisiana State University, Baton Rouge 70803.
authors.forename: T W
authors.initials: TW
authors.lastname: Walker
authors.forename: C L
authors.initials: CL
authors.lastname: Meek
authors.forename: V L
authors.initials: VL
authors.lastname: Wright
mesh_terms: D000818:Animals; D009033:Culicidae / Q000469:parasitology*; D004463:Ecology; D007814:Larva / Q000469:parasitology; D008632:Mermithoidea / Q000302:isolation & purification; D010572:Pest Control, Biological; D013997:Time Factors