title: Movement of entomopathogenic nematodes in soils of Fragaria spp.
abstract: The mobility of three entomopathogenic nematodes (Steinernema carpocapsae UK and All Strain, and S. glaseri (Nematoda: Steinernematidae) was observed in strawberry fields in Vancouver, WA. Nematodes were sprinkled over the soil surface using a mason jar. Soil and soil-moisture content, soil composition, soil pH and conductivity was reported over the evaluation period. 12 cm deep soil samples were taken after surface application at 9 and 25 days, 7, 26 and 45 and 6, 22, 37 and 50 days at the three different test sites within the surface application site and at 5 cm distance. Soil samples taken were divided into three layers (0-4, 5-8 and 9-12 cm) and exposed once to five Galleria larvae in the laboratory to evaluate nematode presence and movement. Results after surface application demonstrated more vertical movement of S. glaseri into deeper soil layers in comparison to both S. carpocapsae strains.
authors.affiliation: Washington State University, Vancouver Research and Extension Unit, 1919 N.E. 78th Street, Vancouver, WA 98665-9752, USA.
authors.forename: L
authors.initials: L
authors.lastname: Wennemann
authors.forename: C H
authors.initials: CH
authors.lastname: Shanks
authors.forename: K A
authors.initials: KA
authors.lastname: Smith
mesh_terms: D000818:Animals; D031985:Fragaria / Q000469:parasitology*; D007814:Larva; D009043:Motor Activity; D009348:Nematoda / Q000254:growth & development / Q000302:isolation & purification* / Q000502:physiology; D018517:Plant Roots / Q000469:parasitology; D012987:Soil / Q000469:parasitology*; D014861:Washington
chemical_list: D012987:Soil