D. Lowery

Publications65
h-index18
Citations984
Highly Influential Citations57
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Phytoplasma Diseases and Their Relationships with Insect and Plant Hosts in Canadian Horticultural and Field Crops
Abstract Phytoplasmas are bacterial plant pathogens consisting of more than 50 phylogenetic groups that cause devastating diseases in various crops worldwide. They are obligate parasites restricted… Expand
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Comparison of bioassay techniques for determining baseline susceptibilities to imidacloprid for green apple aphid (Homoptera: Aphididae).
The susceptibility of a clone of green apple aphid, Aphis pomi (De Geer), to the neonicotinyl insecticide imidacloprid was determined by direct and indirect bioassay techniques. Aphid numbers were… Expand
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Incidence, distribution and genetic diversity of Grapevine red blotch virus in British Columbia
Abstract Grapevine red blotch virus (GRBV) is a recently identified virus reported mainly from several grape-growing regions in the USA. To date, no information about the occurrence of GRBV is… Expand
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Insect growth regulating effects of neem extract and azadirachtin on aphids
Neem, Azadirachta indica (A. Juss.), seed oil (NSO) applied to leaf discs at a concentration of 1.0% resulted in 94% to 100% mortality of second instar nymphs of currant‐lettuce aphid, Nasonovia… Expand
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Identification, Distribution, and Molecular Characterization of the Apple Aphids Aphis pomi and Aphis spiraecola (Hemiptera: Aphididae: Aphidinae)
Abstract Morphometric techniques, DNA mitochondrial cytochrome c oxidase subunit 1 gene (COI) barcoding, and microsatellite flanking region sequences were used to assess the reliability of… Expand
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Inhibition of Aphid (Homoptera: Aphididae) Reproduction by Neem Seed Oil and Azadirachtin
Exposure of adult green peach aphid, Myzus persicae (Sulzer), and lettuce aphid, Nasonovia ribisnigri (Mosley), for 3 d to a 1.0% solution of neem seed oil applied to leaf disks reduced the number of… Expand
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Susceptibilities of Apple Aphid and Spirea Aphid Collected from Apple in the Pacific Northwest to Selected Insecticides
Abstract Laboratory bioassays using leaf disks of apple dipped in test solutions of insecticides demonstrated that the apple aphid, Aphis pomi De Geer, and the spirea aphid, Aphis spiraecola Patch,… Expand
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Resistance and Cross-Resistance to Four Insecticides in Populations of Obliquebanded Leafroller (Lepidoptera: Tortricidae)
Abstract Populations of obliquebanded leafroller, Choristoneura rosaceana (Harris), were collected from organic and conventionally managed orchards located in the Okanagan and Similkameen Valleys of… Expand
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Influence of Neem Oil on Detoxication Enzyme Activity in the Obliquebanded Leafroller,Choristoneura rosaceana
Abstract Larvae of the obliquebanded leafroller,Choristoneura rosaceanaL. (Lepidoptera: Tortricidae), were fed artificial diet containing various doses of neem oil. After 6 days of feeding, larvae… Expand
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Laboratory and field evaluation of neem for the control of aphids (Homoptera : Aphididae)
Laboratory and field trials with formulated neem seed oil (NSO) and neem seed extract (NSE) demonstrated that these materials are effective aphicides. NSO sprays to intact plants in the laboratory… Expand
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