Pupation Behavior and Predation on Drosophila suzukii (Diptera: Drosophilidae) Pupae in Maine Wild Blueberry Fields
| Autor: | Francis A. Drummond, Judith A Collins, Elissa Ballman |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Gryllus pennsylvanicus Food Chain Insecta Blueberry Plants Biological pest control Zoology 01 natural sciences Predation Gryllidae Ground beetle Arachnida Animals Maine Pest Control Biological Drosophila suzukii Predator Ecology biology Pupa General Medicine biology.organism_classification Coleoptera 010602 entomology Predatory Behavior Insect Science Drosophila PEST analysis 010606 plant biology & botany |
| Zdroj: | Journal of Economic Entomology. 110:2308-2317 |
| ISSN: | 1938-291X 0022-0493 |
| Popis: | Drosophila suzukii (Matsumura; Diptera: Drosophilidae) is an invasive vinegar fly and pest of soft fruits in North America, including wild blueberries (Vaccinium angustifolium Aiton) in Maine. Despite its presence in the continental United States for 9 yr, little is known about its natural enemy complex. Here we report the results of a 3-yr study designed to identify naturally-occurring predators in Maine's wild blueberry fields. Experiments were conducted to determine pupation site and pupation depth to understand D. suzukii's predation vulnerability. Predation rates in the field of fully-exposed, caged, and buried pupae were measured. Pitfall traps were deployed to identify the potential predator assemblage, and laboratory experiments were conducted to determine how many pupae were consumed by commonly occurring ground beetle species (Carabidae) and field crickets (Gryllus pennsylvanicus Burmeister). The most commonly collected predators were ants, ground beetles, harvestmen, and field crickets. Significantly more pupae were found to occur in the soil compared to blueberry fruit, with most pupae in the top 0.5 cm layer of soil. Pupal predation rates in the field were high, with higher rates of predation on exposed pupae compared to buried pupae. Laboratory studies revealed that ground beetles and field crickets are likely predators of D. suzukii pupae. |
| Databáze: | OpenAIRE |
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