Susceptibility of the Strawberry Crown Moth (Lepedoptera: Sesiidae) to Entomopathogenic Nematodes

Insects
The purpose of this research was to determine the susceptibility of the strawberry crown moth, Synanthedon bibionipennis (Boisduval) (Lepidoptera: Sesiidae) larvae to two species of entomopathogenic nematodes. The entomopathogenic nematodes Steinernema carpocapsae (Weiser) strain Agriotos and Heterorhabditis bacteriophora (Steiner) strain Oswego were evaluated in laboratory soil bioassays and the field.

Impact of Fungicides on Metarhizium anisopliae in the Rhizosphere, Bulk Soil and In Vitro

Insects
These studies were conducted to determine the compatibility of M. anisopliae (F52) with a wide range of fungicides commonly applied to container-grown ornamentals for the management of soil-borne plant pathogens. In addition, the impact of fungicide application to M. anisopliae population in soilless potting media (bulk and rhizosphere soil) was also determined.

Diversity of Rhizosphere Associated Entomopathogenic Fungi of Perennial Herbs, Shrubs and Coniferous Trees

Insects
This study sought to ascertain if there was an association between host plant and species of fungi by using phylogenetic analysis to determine the prevalence of Metarhizium and Beauveria spp. isolated from the rhizosphere of strawberry, blueberry, grape and Christmas tree crops in the Willamette Valley of Oregon.

Susceptibility of the Filbertworm (Cydia latiferreana, Lepidoptera: Tortricidae) and Filbert Weevil (Curculio occidentalis, Coleoptera: Curculionidae) to Entomopathogenic Nematodes

Insects
A report on research conducted to determine the susceptibility of the two primary direct insect pests of hazelnuts in Oregon to three species of entomopathogenic nematodes. Additionally, a small-scale replicated field trial was performed to determine the efficacy of the two most effective nematodes species in the laboratory against both insects in the field.

Persistence of Metarhizium anisopliae Incorporated into Soilless Potting Media for Control of the Black Vine Weevil, Otiorhynchus sulcatus in Container-Grown Ornamentals

Insects
Research was conducted to determine the persistence of Metarhizium anisopliae (F52), measured as infectivity against black vine weevil larvae, in a soilless potting medium at six wholesale nursery locations across the Willamette Valley, Oregon.

Laboratory Bioassays of Entomopathogenic Fungi for Control of Delia radicum (L.) Larvae

Insects
The objective of these studies was to determine the pathogenicity of entomopathogenic fungi against the cabbage maggot, Delia radicum (L.). The use of Metarhizium anisopliae isolate F52 in an integrated management program is discussed.

Effect of Potting Media Component on the Infectivity of Metarhizium anisopliae against the Black Vine Weevil (Coleoptera: Curculionidae)

Insects
The purpose of this study was to determine the persistence, measured as efficacy against BVW larvae, of M. anisopliae in five (coir, fir bark, hemlock bark, peat moss and perlite) common components of soilless potting media.

Evaluation of Application Technologies of Entomopathogenic Nematodes for Control of the Black Vine Weevil

Insects
Studies were conducted to determine the efficacy of three species of entomopathogenic nematodes (Heterorhabditis marelatus, Heterorhabditis bacteriophora, and Steinernema riobrave) applied in infected host cadavers or as aqueous applications for black vine weevil larval control.

A Technique for Continuous Mass Rearing of the Black Vine Weevil, Otiorhynchus sulcatus

Insects
Experiments were performed to determine if 1) O. sulcatus larval survival and development increased with a standard or improved diet and 2) whether O. sulcatus eggs could be stored for up to 4 weeks at 4 °C without significant reductions in larval survival and development.

Biology and Control of Root Weevils on Berry and Nursery Crops in Oregon

Insects
Researchers recently developed a mass rearing system for the black vine weevil (Otiorhynchus sulcatus) and strawberry root weevil (Otiorhynchus ovatus) and now are able to conduct controlled experiments to study their biology and to develop chemical and biological management systems.

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