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Denny J. Bruck
Agricultural Research Service
51Publications
24H-index
2,063Citations
Publications 52
Newest
Abstrtact Root weevils in the genus Otiorhynchus are an important pest in the nursery and small fruit production worldwide. The night-activity of the adult weevils obstruct timely monitoring and oviposition often starts before effective control measures are taken. The primary objective of this research goal was to develop an effective trap for monitoring that can be used in conjunction with the kairomone (Z)-2-pentenol and an effective means to kill the insects that enter the trap. A novel ruffl...
Source
#1Jimmy Klick (OSU: Oregon State University)H-Index: 4
#2Wei Qiang Yang (OSU: Oregon State University)H-Index: 10
Last.Denny J. Bruck (ARS: Agricultural Research Service)H-Index: 24
view all 4 authors...
ABSTRACTSince the arrival of Drosophila suzukii M. (Diptera: Drosophilidae), field applications of broad-spectrum insecticides have increased in berry crop production to protect susceptible fruits from infestation. Field studies were conducted from 2011 to 2013 to determine whether alternate row middle or border spray programs could manage D. suzukii as well as complete sprays and have less of an impact on non-target arthropods. Four raspberry sites and one blueberry site were alternate row midd...
10 CitationsSource
#1Jana C. Lee (ARS: Agricultural Research Service)H-Index: 21
#2Daniel T. Dalton (OSU: Oregon State University)H-Index: 15
Last.Vaughn M. Walton (OSU: Oregon State University)H-Index: 32
view all 8 authors...
Drosophila suzukii (Matsumura) is an economic pest of small fruits and cherries that attacks intact ripening fruits. Host susceptibility may be influenced by characteristics such as flesh firmness, penetration force of the skin, total soluble solids (TSS, also known as °Brix), and pH. Improved knowledge of factors affecting fruit susceptibility is needed for developing thresholds and risk prediction models for IPM. A combination of laboratory and field studies was conducted to develop prediction...
33 CitationsSource
#1Jana C. Lee (ARS: Agricultural Research Service)H-Index: 21
#2Daniel T. Dalton (OSU: Oregon State University)H-Index: 15
Last.Vaughn M. Walton (OSU: Oregon State University)H-Index: 32
view all 8 authors...
2 CitationsSource
#1Jimmy Klick (OSU: Oregon State University)H-Index: 4
#2Wei Qiang Yang (OSU: Oregon State University)H-Index: 10
Last.Denny J. Bruck (ARS: Agricultural Research Service)H-Index: 24
view all 8 authors...
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 field margins containing HB and their effect on D. suzukii activity, density and distribution in an adjacent commercial red raspberry crop. One-ha plots adjacent to field margins...
64 CitationsSource
#1J. M. Woltz (OSU: Oregon State University)H-Index: 2
#2K. M. Donahue (ARS: Agricultural Research Service)H-Index: 1
Last.Jana C. Lee (ARS: Agricultural Research Service)H-Index: 21
view all 4 authors...
The recent arrival of Drosophila suzukii, an invasive pest of soft-skinned fruit with a wide host range, has resulted in increased production costs for growers and the need for additional insecticide applications each growing season. There are few effective organic insecticides for D. suzukii, and insecticide use in conventional farms may be disruptive to natural enemies, suggesting a need for effective biological control to combat D. suzukii. Commercially available natural enemies were evaluate...
54 CitationsSource
#1J. Klick (OSU: Oregon State University)H-Index: 1
#2Wei Qiang Yang (OSU: Oregon State University)H-Index: 10
Last.Denny J. Bruck (DuPont Pioneer)H-Index: 24
view all 3 authors...
Drosophila suzukii Matsumura (Diptera: Drosophilidae) has caused significant economic damage to berry and stone fruit production regions. Markers that are systemic in plants and easily transferred to target organisms are needed to track D. suzukii exploitation of host resources and trophic interactions. High and low concentrations of the trace element, rubidium (Rb), and the stable isotope, 15N, were tested to mark D. suzukii larvae feeding on fruits of enriched strawberry plants grown in contai...
1 CitationsSource
#1Jana C. Lee (ARS: Agricultural Research Service)H-Index: 2
#2Amy J. Dreves (OSU: Oregon State University)H-Index: 12
Last.Denny J. Bruck (DuPont Pioneer)H-Index: 24
view all 8 authors...
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a pest of small fruits and cherries, and has also been noted to infest a variety of wild, ornamental, and uncultivated hosts. Identify- ing alternative hosts is critical for pest management. Research objectives were to: 1) survey fruits in the field for natural infestation of D. suzukii, 2) determine the susceptibility of fruits in laboratory no-choice studies, and 3) evaluate short-range preference between simultaneously ripe alternativ...
133 CitationsSource
#1Jimmy Klick (OSU: Oregon State University)H-Index: 4
#2Jana C. Lee (ARS: Agricultural Research Service)H-Index: 21
Last.Wei Qiang Yang (OSU: Oregon State University)H-Index: 10
view all 5 authors...
Drosophila suzukii Matsumura (Diptera: Drosophilidae) utilizes ‘Himalaya’ blackberry, Rubus armeniacus Focke (Rosaceae), as a host and may invade berry and stone fruit crops from field margins containing this invasive weed. Laboratory and semi-field studies were conducted to determine (1) the persistence of protein marks including 10% chicken egg whites (egg albumin protein), 20% bovine milk (milk casein protein), and 20% soy milk (soy trypsin inhibitor protein) on topically sprayed D. suzukii, ...
18 CitationsSource
#1Joseph R. Kleiber (OSU: Oregon State University)H-Index: 2
#2C. Rikard Unelius (LNU: Linnaeus University)H-Index: 18
Last.Denny J. Bruck (DuPont Pioneer)H-Index: 24
view all 6 authors...
ABSTRACT Laboratory screening bioassays and field trapping experiments of spotted wing drosophila flies, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), were conducted to determine the attractiveness of 17 compounds as well as to compare attractant efficiency during peak fruit ripeness and postharvest captures late in the season. Compounds structurally related to each of the fermentation products acetic acid, ethanol, ethyl acetate, and 2-phenethyl alcohol were screened for attractivene...
26 CitationsSource
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