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- Title
Population Abundance of the African Scale Insect, Lecanodiaspis africana Newst. and its Parasitoid, Scutellista cyanea Motch. in Upper Egypt.
- Authors
Morsi, G. A.
- Abstract
Seasonal fluctuations of the population density of the African scale insect, Lecanodiaspis africana Newst (Homoptera: Lecanodiaspididae) at Qena Governorate, Egypt and its parasitoid were estimated on guava trees from May 2006 until April 2008. The parasitoid species, Anagyrus pseudococci, Microtyres flavus, Allotropa kamburovi, Scutellista cyanea and Eublemma scitula were found associated with L. africana. The predators, Pharoscymnus varius and Scymnus syriacus were found feeding upon this scale insect. The African scale insect had two annual peaks of abundance in the first year of study on July 20th and November 20th. In the second year of investigation, three peaks were observed on June 5th; October 20th and March 20th. Rate of mortality caused by the parasitoids was estimated. Percentage of parasitism with the pteromalid, Scutillista cyaneae, peaked on June, 20th; August 5th; October 20th, 2006 and March 5th, 2007 and on July 5th; September 5th; November 5th and March 5th in the second year 2007/08.
- Subjects
EGYPT; LECANODIASPIS; SCALE insects; PARASITOIDS; INSECT populations; INSECT population density; HOMOPTERA; LECANODIASPIDIDAE; PREDATORY animals; BIOLOGICAL pest control
- Publication
Egyptian Journal of Biological Pest Control, 2010, Vol 20, Issue 2, p131
- ISSN
1110-1768
- Publication type
Article