Some biological and predation characteristics of Oenopia conglobata contaminata (Col.: Coccinellidae) on the common pistachio psylla in laboratory conditions | ||
| تحقیقات حمایت و حفاظت جنگلها و مراتع ایران | ||
| Article 4, Volume 6, Issue 2 - Serial Number 12, December 2009, Pages 110-117 PDF (197.24 K) | ||
| Document Type: Research Paper | ||
| Authors | ||
| M. R. Hassani* ; M. R. Mehrnejad; H. Ostovan | ||
| Abstract | ||
| The common pistachio psylla (Agonoscena pistaciae Burckhardt & Lauterer) is one of the most important pests of the cultivated pistachio trees and wild pistachio growing areas in Iran. Life table parameters and functional response of Coccinellid beetle, Oenopia conglobata contaminata Menetries as the dominant species and the most important Coccinellid predator of the common pistachio psylla in wild pistachio growing areas was determined under controlled conditions. The rate of natural increase (rm) and finite rate of increase (λ) were 0.16 and 1.18, respectively. The gross reproduction rate (GRR) and net reproduction rate (R0) was 308.74 and 202.81, respectively. The mean generation time (T) was 32.5 days and the population doubling time (DT) was 4.24 days. In order to determine functional response type of this predator different densities of fourth psyllid instar nymphs were examined. It was found the functional response to be type ІІ. The searching efficiency (a) and handling time (Th) were 0.0469 and 0.0152, respectively. | ||
| Keywords | ||
| Oenopia conglobata contaminata; Agonoscena pistaciae; life table; Functional response | ||
| References | ||
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