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EL-ENANY, M., SOLIMAN, Z., NAWAR, M., IBRAHM, A. (1999). SOME BIOTIC AND ABIOTIC FACTORS AFFECTING THE BIOLOGY OF PHYTOSEIUS PLUMIFER (CANESTRINI AND FANZAGO) (ACARI: PHYTOSEIIDAE). Egyptian Journal of Agricultural Research, 77(4), 1509-1518. doi: 10.21608/ejar.1999.342105
MOHAMED A. M. EL-ENANY; ZENHOM.R. SOLIMAN; MOHAMED S. NAWAR; ABLA A. IBRAHM. "SOME BIOTIC AND ABIOTIC FACTORS AFFECTING THE BIOLOGY OF PHYTOSEIUS PLUMIFER (CANESTRINI AND FANZAGO) (ACARI: PHYTOSEIIDAE)". Egyptian Journal of Agricultural Research, 77, 4, 1999, 1509-1518. doi: 10.21608/ejar.1999.342105
EL-ENANY, M., SOLIMAN, Z., NAWAR, M., IBRAHM, A. (1999). 'SOME BIOTIC AND ABIOTIC FACTORS AFFECTING THE BIOLOGY OF PHYTOSEIUS PLUMIFER (CANESTRINI AND FANZAGO) (ACARI: PHYTOSEIIDAE)', Egyptian Journal of Agricultural Research, 77(4), pp. 1509-1518. doi: 10.21608/ejar.1999.342105
EL-ENANY, M., SOLIMAN, Z., NAWAR, M., IBRAHM, A. SOME BIOTIC AND ABIOTIC FACTORS AFFECTING THE BIOLOGY OF PHYTOSEIUS PLUMIFER (CANESTRINI AND FANZAGO) (ACARI: PHYTOSEIIDAE). Egyptian Journal of Agricultural Research, 1999; 77(4): 1509-1518. doi: 10.21608/ejar.1999.342105

SOME BIOTIC AND ABIOTIC FACTORS AFFECTING THE BIOLOGY OF PHYTOSEIUS PLUMIFER (CANESTRINI AND FANZAGO) (ACARI: PHYTOSEIIDAE)

Article 8, Volume 77, Issue 4, December 1999, Page 1509-1518  XML PDF (3.15 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1999.342105
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Authors
MOHAMED A. M. EL-ENANY1; ZENHOM.R. SOLIMAN2; MOHAMED S. NAWAR2; ABLA A. IBRAHM1
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
2Faculty of Agriculture, Cairo University, Giza, Egypt
Abstract
Some biotic and abiotic factors affecting the biology of the pred­atory mite Phytoseius plumifer(Canestrini & Fanzago) were studied using the two-spotted spider mite Tetranychus urticae Koch immatures as a food source. The fermal comanionship with male allover her longevity (multiple mating) gave female shortest longevity (45.2 days), and greatest fecundity (390 eggs / female) ; while single mating gave the longest longevity (52.3 days) and the smallest fecundity (82 eggs / fe­male). T.uricae (adults, 20% ; immatures, 10 % ; eggs 10%)gave the greatest attraction percentage (10%) in the shortest time (5.6, 6.7 and 8.5 minutes, respectively) for fed predator female, while the the scale insect Pariatoria zizyphus (Lucas) eggs gave the smallest (5%) and the longest time (91.0 minutes). Also, fed females were better attract­ed to food than 24 and 48 hours starved females. Low temperatures 10°C and 5°C decreased total egg hatchabili­ty. It decreased from 98% to 72 & from 90% to 40% after one to four weeks at the two degrees, respectively. At 10°C and 5°C female surviv­ability and fecundity ranged from 82 & 54% and 29 & 19 eggs / female to 10 & 0% and 5&0 eggs /female after one to four weeks.
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