Abd EI- Kareim,, A., Abdel- Salam, A., Abdel- Baky, N., Bayoumy, M. (2005). THE ROLE OF PARASITOIDS IN CONTROLLING SAN JOSE SCALE, Qudaraspidiotus perntctosus (Comstock) (HEMIPTERA: DIASPIDIDAE) POPULATIONS AS A NEW INTRODUCED PEST TO Egypt.. Journal of Plant Protection and Pathology, 30(12), 8193-8200. doi: 10.21608/jppp.2005.239489
A. I. Abd EI- Kareim,; A. H. Abdel- Salam; N. F. Abdel- Baky; mohamed hassan Bayoumy. "THE ROLE OF PARASITOIDS IN CONTROLLING SAN JOSE SCALE, Qudaraspidiotus perntctosus (Comstock) (HEMIPTERA: DIASPIDIDAE) POPULATIONS AS A NEW INTRODUCED PEST TO Egypt.". Journal of Plant Protection and Pathology, 30, 12, 2005, 8193-8200. doi: 10.21608/jppp.2005.239489
Abd EI- Kareim,, A., Abdel- Salam, A., Abdel- Baky, N., Bayoumy, M. (2005). 'THE ROLE OF PARASITOIDS IN CONTROLLING SAN JOSE SCALE, Qudaraspidiotus perntctosus (Comstock) (HEMIPTERA: DIASPIDIDAE) POPULATIONS AS A NEW INTRODUCED PEST TO Egypt.', Journal of Plant Protection and Pathology, 30(12), pp. 8193-8200. doi: 10.21608/jppp.2005.239489
Abd EI- Kareim,, A., Abdel- Salam, A., Abdel- Baky, N., Bayoumy, M. THE ROLE OF PARASITOIDS IN CONTROLLING SAN JOSE SCALE, Qudaraspidiotus perntctosus (Comstock) (HEMIPTERA: DIASPIDIDAE) POPULATIONS AS A NEW INTRODUCED PEST TO Egypt.. Journal of Plant Protection and Pathology, 2005; 30(12): 8193-8200. doi: 10.21608/jppp.2005.239489
THE ROLE OF PARASITOIDS IN CONTROLLING SAN JOSE SCALE, Qudaraspidiotus perntctosus (Comstock) (HEMIPTERA: DIASPIDIDAE) POPULATIONS AS A NEW INTRODUCED PEST TO Egypt.
1Economic Entomology Department, Faculty of Agriculture. Mansoura University, Mansoura, Egypt.
2Faculty of Agriculture - Mansoura University.
Abstract
The experiments were conducted in a plum (Prunus salicina (Lind) orchard - located at the Experimental Research Station of the Faculty of Agriculture, Mansoura University during 2001/2002 and 200212003 seasons. The diaspidid, Quadrasp < /em>idiotus perniciosus (Comstock) was recorded for the first time in Egypt. Two aphelinid parasitoids were founded associated with the pest populations nemaly, Aphytis diaspidis De8ach and Encarsia citrin a Craw. during both years of study. The ectoparasitoid, A. diaspidis was the most dominant parasitoid and represented the majority of the total numbers of emerging parasitoids.
The total numbers of A. diasp < /em>idis immature stages showed three peaks during the 1st week of May, 3'd week of October and 2nd week of December, 2001. While, four slight peaks of seasonal abundance were recorded in the second year occurred at the 4th week of March, 1st week of September (2002), 1st week of January, and t" week of March (2003).
The average percentages of mortality caused by parasitoids throughout the whole year represented by 17.05 and 18.19 %, while mortality caused by predators represented by 9.45 and 12.91 % and unknown mortality represented by 9.398 and 5.38 % during the first and second year, respectively.
View on SCiNiTO
Top