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Searching Behaviour of Metaphycus helvolus, (Compere) and Scutellista cyanea, Motschulsky on Hemispherical Scale, S. coffeae (Walker)

Ibrahim, Abdul Ghani (1988) Searching Behaviour of Metaphycus helvolus, (Compere) and Scutellista cyanea, Motschulsky on Hemispherical Scale, S. coffeae (Walker). Pertanika, 11 (1). pp. 1-5.

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Abstract

The host searching of Metaphycus helvolus and Scutellisa cyanea were studied under two different constant temperatures of18 °Cand 26 °C. In the course of host-searching, both parasitoids were involved with host-drilling, handling, preening, walking and resting. Host-feeding only occurred with M. helvolus. S. cyanea spent more than fifty percent of the time walking at both temperatures. However, M. helvolus spent a greater proportion of time for three activities: walking, host-drilling and preening. The amount of time spent by M. helvolus on host-feeding was less than ten percent. The areas covered by M. helvolus and S. cyanea for host-searching at 26°C were 933 mm2/hr and 3517 mm2/hr. respectively.

Item Type:Article
Keyword:Metaphycus helvolus; Scutellista cyanea; Saissetia coffeae; temperature; host-searching.
Faculty or Institute:Faculty of Agriculture
ID Code:2681
Deposited By: Nur Izyan Mohd Zaki
Deposited On:17 Nov 2009 09:16
Last Modified:27 May 2013 15:02

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