BACKGROUND The effect of varying the height of reservoir dispensers for mating disruption of codling moth, Cydia pomonella (L.), was investigated. The goal was to improve the effectiveness of C. pomonella mating disruption through improved understanding of adult distribution within the tree canopy and the impact of pheromone dispenser placement on disruption. Two dispensers per tree were placed...

YEAR 3/3 TITLE: Development of Genetic Markers to Identify Problematic Pests in Deciduous Fruits Intercepted at Foreign Quarantine Inspection Stations PI: Tom Unruh. USDA-ARS-YARL. 5230 Konnowac Pass Rd.Wapato, WA 98951. Phone 509-454-6563; FAX: 509-454-5646; e-mail: [email protected] CO-PI Nina M. Bárcenas. Postdoctoral Research Associate. Washington State University Collaborator: Lisa G...

trichogramma ingricum sorokina, 1984, an egg parasitoid, only known from russia (st. petersburg), here is newly recorded from northern iranian provinces including west and east azarbaijan and mazandaran. the localities and hosts are as follows: tabriz, on eggs of cydia pomonella (l.); urmia (chubtarash, najafabad-e gharebagh, tasmalu, ghulenji), on eggs of c. pomonella and lobesia botrana den &...

Diachasma alloeum (Muesebeck) is a braconid parasitoid of Rhagoletis mendax Curran and Rhagoletis pomonella (Walsh). Laboratory choice tests using a Y-tube olfactometer compared behavioral responses of D. alloeum to various olfactory stimuli. More than 25% of naïve D. alloeum females, never having experienced R. mendax or blueberries, were ‘innately’ attracted to volatiles emitted from uninfest...

Two insecticide formulations containing the naturalyte insecticide spinosad, GF-120 Fruit Fly Bait and SpinTor 2 SC, were compared for control of apple maggot, Rhagoletis pomonella (Walsh), and blueberry maggot, Rhagoletis mendax Curran. In 2002 and 2003, larval infestation in blueberries and apples was signiÞcantly lower in plots treatedwithGF-120 (spinosad bait) or SpinTor than in untreated c...

Lepidopteran insects use sex pheromones to communicate for mating. Olfactory communication and mate-finding can be prevented by permeating the atmosphere with synthetic pheromone. Pheromone-mediated mating disruption has become a commercially viable pest management technique and is used to control the codling moth, Cydia pomonella, a key insect pest of apple, on 160,000 ha worldwide. The codlin...

Baited pesticide-treated biodegradable spheres were evaluated for their efÞcacy to control and monitor apple maggot, Rhagoletis pomonella (Walsh), and blueberry maggot, R. mendax Curran, ßies. A Plexiglas pane treated with sprayable Tangle-Trap was found to be an effective technique for assessing the fate of Rhagoletis ßies encountering treated spheres. SigniÞcantly more R. pomonella and R. men...

A diet-incorporation larval bioassay was developed to measure the response of codling moth, Cydia pomonella (L.), to the benzoylhydrazine insecticides tebufenozide and methoxyfenozide. The bioassay tested neonates and third, fourth, and fifth instars from a laboratory colony and neonates and fourth instars from a pooled population collected from five certified-organic apple orchards. Bioassays ...

Apple maggot, Rhagoletis pomonella (Walsh), is a quarantine pest of apples, Malus domestica Borkhausen, and pears, Pyrus communis L., shipped from much of the United States and Canada. As such, these fruits shipped from infested areas to uninfested areas must undergo a quarantine disinfestation treatment. The objective of this research was to develop irradiation quarantine treatments against ap...

Rhagoletis pomonella (Diptera: Tephritidae) populations in North America have diverged by exploiting host plants with varying fruiting phenologies in environments that differ markedly in temperature and humidity. As a result, four genetically and ecologically distinct R. pomonella populations that display partial reproductive isolation have evolved. Host shifting by Rhagoletis and similar evolu...