Apple cultivar preferences byHoplocampa testudinea(Hymenoptera: Tenthredinidae) in the Annapolis Valley of Nova Scotia, Canada
| Autor: | Suzanne Blatt, Christopher Burgart, Neil Kirk Hillier |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Malus biology Pinova Physiology fungi food and beverages biology.organism_classification medicine.disease_cause 01 natural sciences Crop 010602 entomology Sawfly Horticulture Structural Biology Insect Science Infestation Botany medicine Hoplocampa testudinea PEST analysis Molecular Biology Tenthredinidae Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | The Canadian Entomologist. 148:724-735 |
| ISSN: | 1918-3240 0008-347X |
| Popis: | The European apple sawfly,Hoplocampa testudinea(Klug) (Hymenoptera: Tenthredinidae), is an economically important pest in eastern Canada. Growers can experience significant crop losses as management of this species is difficult because it is present during bloom. As a result, management strategies other than pesticides are required for this pest. Eleven commercial and experimental apple (Malus pumilaMiller; Rosaceae) cultivars were studied to evaluate host resistance as a potential management strategy. Preferences were determined using field surveys of adult visitation, larval infestation of apples, damage at harvest, behavioural bioassays, and electrophysiological tests. Significant differences in visitation and infestation were observed.H. testudineapreferred “Zestar!”, “s23-06-153”, and “Pinova” over other cultivars examined. Comparison with subsequent larval counts and damage also suggest differential performance of larvae in several cases, irrespective of the adult preference. Y-tube bioassays and electroanntennography results indicate that olfaction plays a role in cultivar discrimination for this species. |
| Databáze: | OpenAIRE |
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