PhD exit seminar: Effect of grapevine variety on population dynamics of Frosted and Grapevine scales

Date & time

1–2pm 10 July 2014

Location

Gould Seminar Room,
(Rm 235) Gould Building (Bldg. 116),
Linnaeus Way, ANU

Speakers

Nelson Simbiken, Cooper Lab, EEG

Contacts

 Ajay Narendra

Description

In pest insect biology, the resource concentration hypothesis considers how suitability and availability of host plants are involved in pest population dynamics. Limiting the spread and buildup of pest species using resistant host plants can be an important pest management strategy. Incidence of frosted and grapevine scales at regional and vineyard scales may vary as a result of grapevine variety effect. Two main effects can be distinguished. First, grapevine varieties provide a habitat of variable quality for pests and beneficial organisms. Second, grapevine varieties respond differently to insect feeding depending on pest population. Using field and glasshouse studies the effect of grapevine varieties on scale population was investigated. My work demonstrated that grapevines affected scale population growth differently and that environment played a role in scale responses.

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