Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"leafroller"”.
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Speciation genes in native New Zealand leafroller moths
… gene in a complex of native New Zealand Leafroller moths. Ctenopseustis and Planotortrix comprise ve and seven species, respectively. Intraspecic sampling resolved many allelic variants in four neutral genes (COI [barcoding region],COI-COII, EF-1 and TPI ). These loci show evidence of …
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Bionomics of Epiphyas postvittana, Ctenopseustis obliquana, Planotortrix excessana (Lepidoptera: Tortricidae) and Stathmopoda "skelloni" (Lepidoptera: Stathmopodidae) on apple cv 'Dougherty' in Auckland
… and illustrated. Populations of the three leafroller species Epiphyas postvittana (Walker), C. obliquana and Planotortrix excessana (Walker) together with Stathmopoda “skelloni” (Butler) were monitored intensively from 1976 to 1979 in an insecticide free block of mature apple, cv …
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Enhancing the biological control of leafrollers (Lepidoptera: Tortricidae) using floral resource subsidies in an organic vineyard in Marlborough, New Zealand
… could enhance the biological control of leafrollers (Lepidoptera: Tortricidae) in an organic vineyard in Marlborough, New Zealand. Laboratory experiments were conducted to find a selective floral resource that could enhance the 'fitness' of the parasitoid, D. tasmanica without enhancing …
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Effect of buckwheat (Fagopyrum esculentum) on the abundance and efficacy of the leafroller parasitoid (Dolichogenidea tasmanica) in a Blenheim vineyard : A dissertation submitted in the partial fulfilment of the requirements for the degree of Bachelor of Science with Honours at Lincoln University
Leafroller caterpillars (Lepidoptera: Tortricidae) are among the most economically important pests of New Zealand vineyards. Buckwheat, Fagopyrum esculentum Moench., was sown in a vineyard as a floral food resource for the parasitoid wasp Dolichogenidea tasmanica Cameron., a natural enemy of …
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The influence of pheromone dispenser release rates, trap height and pheromone dispenser height on captures of leafrollers in Virginia apple orchards
… of pheromone dispensers for mating disruption of leafrollers and codling moth, Cydia pomonella (Linneaus). Release rates were described by linear equations for at least four months, but by the end of the season release rates tended to become erratic. Biocontrol’s red-brown codling moth dispenser …
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Spiders associated with apple trees in Virginia with notes on their importance in controlling orchard insect pests
… especially with regards to aphid and tortricid leafroller populations. Results of an evaluation of the seasonal efficiency of the limb beating sampling technique indicated that the sampling method was acceptable for quantitative spider population estimates. The time of sampling did not effect …
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Interactions of insect herbivory and multiple abiotic stress agents on two wetland tree species in southeast Louisiana swamps
… during spring. In Louisiana, the baldcypress leafroller, BCLR, (Archips goyerana Kruse) and the forest tent caterpillar, FTC, (Malacosoma disstria Hubner) defoliate up to 120,000ha of baldcypress-tupelo swamps. Restoration plans call for reintroducing Mississippi River water (diversions) to …
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The influence of an umbelliferous understory on the parasites of organic apple orchards in Canterbury
… Numbers of parasites in general, and of leafroller parasites, were greatest in orchards with a wild parsnip understorey, indicating a beneficial effect of parsnip presence on parasite numbers. The organic orchards were found to be a highly complex system with many interrelated temporal …
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Ecosystem services provided by native New Zealand plants in vineyards
… to selective floral resource provisioning for leafroller (Lepidoptera: Tortricidae) pest management, while L. dioica may be suitable for enhancing the fitness of Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae), a natural enemy of another vineyard pest: mealybug (Pseudococcus …