A5044141882- Insect behavior and control techniques
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Insect and Pesticide Research
- Berry genetics and cultivation research
- Insect Resistance and Genetics
- Hemiptera Insect Studies
- Plant Virus Research Studies
- Research on scale insects
- Plant and animal studies
- Environmental DNA in Biodiversity Studies
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- Entomopathogenic Microorganisms in Pest Control
- Plant Disease Resistance and Genetics
- Collembola Taxonomy and Ecology Studies
- Plant Pathogens and Resistance
- Plant and Fungal Interactions Research
- Fossil Insects in Amber
- Legume Nitrogen Fixing Symbiosis
- Environmental Conservation and Management
- Yeasts and Rust Fungi Studies
- Insect Utilization and Effects
- Medicinal Plants and Neuroprotection
Oregon State University
2013-2023
FH Kärnten
2021-2023
Reed College
2004
Temperature-related studies were conducted on Drosophila suzukii Matsumura (Diptera: Drosophilidae: Drosophilini). From 10-28°C, temperature had a significant impact blueberries, Vaccinium corymbosum L. (Ericales: Ericaceae), and cherries, Prunus avium (L.) 1755 (Rosales: Rosaceae), important commercial hosts of D. suzukii. Temperature influence developmental period, survival, fecundity, with decreasing periods as temperatures increased to 28°C. At 30°C, the highest tested, development...
Drosophila suzukii was first found in Oregon August 2009. The threat of this pest to regional small and stone fruit production industries led investigations on its overwintering capabilities fruit-growing regions the Pacific Northwest. Knowledge cold tolerance will help development computer models forecast seasonal population growth decline.Of 1500 adults or pupae, 22 (1.4%) individuals survived 84 day experimental chilling period. Most (86%) survivors were subjected 10 °C temperature...
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) also known as spotted-wing drosophila (SWD), is a pest native to Southeast Asia. In the last few decades, has expanded its range affect all major European and American fruit production regions. SWD highly adaptive insect that able disperse, survive, flourish under of environmental conditions. Infestation by generates both direct indirect economic impacts through yield losses, shorter shelf life infested fruit, increased costs. Fresh...
Temperature-dependent fecundity and survival data was integrated into a matrix population model to describe relative Drosophila suzukii Matsumura (Diptera: Drosophilidae) increase age structure based on environmental conditions. This novel modification of the classic Leslie is presented as way examine how insect populations interact with environment, has application predictor density. For D. suzukii, we examined implications for pest pressure crops. As case studies, predictions in three...
Drosophila suzukii (Matsumura) is a global pest attacking various berry crops. D. lays eggs in damaged and intact wine grape berries of the most soft-skinned varieties. Here, we describe relative host utilization different cultivars grown Northern Italy Oregon. Assessments were performed both field laboratory settings. Results correlated to physiological changes occurring during development starting at véraison concluding harvest. We found that oviposition increased with an increase sugar...
Abstract Temperature and humidity affect insect physiology, survival, fecundity, reproductive status behaviour. Complementing previous work investigating the effects of temperature on adult survival fecundity invasive frugivorous pest, Drosophila suzukii (Matsumura), this study was conducted to determine effect D. larval development, using blueberry as a host substrate. The five constant levels in laboratory bioassays were 20, 33, 71, 82 94% RH at 20.6 ± 0.2°C. As increased, longevity...
Abstract Spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), may utilize wild ‘Himalaya’ blackberry ( HB ) Rubus armeniacus Focke or other non‐crop plants as refugia and possibly exploit adjacent field margins before colonizing cultivated fruiting crops. Studies were conducted to determine the role of containing their effect on D. activity, density distribution in an commercial red raspberry crop. One‐ha plots known non‐host NH grass crops established 2011 2012...
Drosophila suzukii causes economic damage to berry and stone fruit worldwide. Laboratory-generated datasets were standardized combined on the basis of degree days (DD), using Gompertz Cauchy curves for survival reproduction. Eggs transitioned larvae at 20.3 DD; pupae 118.1 adults 200 DD. All are expected have died 610 Oviposition initiates 210 DD gradually increases a maximum 15 eggs per 410 subsequently decreases zero These data used as cohort-level population model. Laboratory under...
Drosophila suzukii (Matsumura), an invasive pest of small and stone fruits, has been recently detected in 39 states the United States, Canada, Mexico, Europe. This attacks ripening fruit, causing economic losses including increased management costs crop rejection. Ongoing research aims to improve efficacy monitoring traps. Studies were conducted evaluate how physical trap features affect captures D. suzukii. We evaluated five colors, two bait surface areas, a top side position for fly entry...
This research aimed to more clearly describe the interactions of Drosophila suzukii (Matsumura; Diptera: Drosophilidae) with microorganisms that may contribute spoilage or quality loss wine grapes during harvest. Experiments were conducted in controlled laboratory experiments and under field conditions determine these effects. Laboratory trials determined role insect contact oviposition vector bacteria onto grapes. In field, roles key organoleptic parameters grape fruit ripening assessed...
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a destructive crop pest native to Southeast Asia that recently invaded countries in Europe and North America, severely impacting commercial fruit production its new host range. Here we report the results of survey aimed at determining presence indigenous D. parasitoid populations carried out from May October 2012 two areas negatively affected by this pest: Trento Province, Northern Italy, Oregon Pacific Northwest USA. We conducted...
Drosophila suzukii (Matsumura; Diptera: Drosophilidae) is a key pest of sweet cherry and small fruits worldwide. The present studies were designed to describe the reproductive physiology in both sexes, through dissections their organs. We extensively dissected female D. throughout season from 2013 2016 classified status flies based on five recognizable ovarian maturation stages: 1) no ovaries; 2) unripe ovaries 3) ripening eggs ovarioles; 4) mature 5) abdomen. Development was examined as...
Spread and in-field spatial patterns of vines infected with grapevine red blotch virus (GRBV) were documented in Oregon vineyards using field sampling, molecular diagnostics, analysis. Grapevine petiole tissue collected from 2013 to 2016 was tested quantitative polymerase chain reaction for GRBV. At Jacksonville southern Oregon, 3.1% GRBV 2014, incidence reached 58.5% study by 2016. GRBV-infected plants GRBV-uninfected spatially aggregated at this site 2015, associated between years 2015 In...
Drosophila suzukii (Matsumura) is a vinegar fly species that originates from Eastern Asia and has spread throughout Europe the Americas since its initial detection in United States 2008. Its relatively large, sclerotized, serrated ovipositor enables ability to penetrate ripening fruits, providing protected environment for egg larval stages. Because mechanism of oviposition site selection D. matter hypothesis, aim present study was elucidate behavioral chemical aspects short-range...
Maintaining and improving the state of biodiversity is a primary factor guiding management activities in conservation areas, including protected areas (PAs) other effective area-based measures (OECMs). Due to complex nature programs, common approach cannot be prescribed. Robust monitoring programs supporting are required evaluate species habitats. However, limited resources, poor data practices, competing requirements stakeholder groups increase challenges that must addressed through...
Brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is a generalist pest that causes serious injury to variety of crops around the world. After first detection in USA, H. became threat growers resulting significant crop damage. Understanding effect temperature on development will help achieve successful control by predicting phenological timing pest. Here, life table parameters (survival, development, reproduction, and daily mortality) were evaluated for New...
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a destructive crop pest native to Southeast Asia that recently invaded countries in Europe and North America, severely impacting commercial fruit production its new host range.Here we report the results of survey aimed at determining presence indigenous D. parasitoid populations carried out from May October 2012 two areas negatively affected by this pest: Trento Province, Northern Italy, Oregon Pacific Northwest USA.We conducted...
Insecticide applications in blueberry production systems play a crucial role the control of Drosophila suzukii populations. Here, quantitative spray deposition patterns were obtained under replicated field experiments during two seasons with three sprayers, i.e. cannon, electrostatic, and air-blast. Seven insecticides tested (at 6 hours using Potter tower) to determine mortality data for adult D. suzukii. Spray used create model simulations insect Model included rates sprayers insecticide as...