Αξιολόγηση της υπηρεσίας οικοσυστήματος της βιολογικής αντιμετώπισης σε συμβατικές καλλιέργειες τομάτας

Date Issued
2015
Author(s)
Advisor
Abstract
Natural predators provide an invaluable service to an ecosystem, that of biological
control. Crop margins provide important refugees to natural enemies and may improve
biological control within the crop. The current study aimed at evaluating the ecosystem
service of predation in Mediterranean tomato crops. Evaluation of predation within and
in the margins of tomato fields was carried out in Pafos and Limassol during two
periods: the fall-winter and the spring crop using Ephestia kuehniella eggs as prey
facsimiles. The facsimiles were placed within the tomato crop and on wild plants on
field margins. A week later, predation was assessed by counting the number of missing
eggs. Results showed that predation in the field margins was five times lower than
predation within the tomato crop. Beat sampling identified Nesidiocoris tenuis as the
only predator present on tomato plants, and only during the spring season.
Diversification of tomato fields using native plant species may increase the ecosystem
service of predation and reduce the need for chemical pesticide applications.
Subjects

Ecosystem

Nesidiocoris tenuis

Tomato

Crop

Ephestia kuehniella

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