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HAFEZ, S., MAGDY, M., HABSHY, N. (1998). PREYING EFFICIENCY AND BEHAVIOUR OF EUSEIUS SCUTALIS (A.-H.) ON TWO VEGETABLE CROPS IN LABORATORY STUDIES. Egyptian Journal of Agricultural Research, 76(1), 69-76. doi: 10.21608/ejar.1998.343417
SHERIF M. HAFEZ; MAGDA K. MAGDY; NADIA H. HABSHY. "PREYING EFFICIENCY AND BEHAVIOUR OF EUSEIUS SCUTALIS (A.-H.) ON TWO VEGETABLE CROPS IN LABORATORY STUDIES". Egyptian Journal of Agricultural Research, 76, 1, 1998, 69-76. doi: 10.21608/ejar.1998.343417
HAFEZ, S., MAGDY, M., HABSHY, N. (1998). 'PREYING EFFICIENCY AND BEHAVIOUR OF EUSEIUS SCUTALIS (A.-H.) ON TWO VEGETABLE CROPS IN LABORATORY STUDIES', Egyptian Journal of Agricultural Research, 76(1), pp. 69-76. doi: 10.21608/ejar.1998.343417
HAFEZ, S., MAGDY, M., HABSHY, N. PREYING EFFICIENCY AND BEHAVIOUR OF EUSEIUS SCUTALIS (A.-H.) ON TWO VEGETABLE CROPS IN LABORATORY STUDIES. Egyptian Journal of Agricultural Research, 1998; 76(1): 69-76. doi: 10.21608/ejar.1998.343417

PREYING EFFICIENCY AND BEHAVIOUR OF EUSEIUS SCUTALIS (A.-H.) ON TWO VEGETABLE CROPS IN LABORATORY STUDIES

Article 6, Volume 76, Issue 1, March 1998, Page 69-76  XML PDF (2.06 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1998.343417
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Authors
SHERIF M. HAFEZ1; MAGDA K. MAGDY2; NADIA H. HABSHY2
1Faculty of Agriculture, Ain Shams University, Egypt
2Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
The aim of this study was to assess the effect of the prey ab­sence and starvation on the biology of Euseius scutalis (Athias-Henriot) (= Amblyseius gossypii El-Badry) when the prey reared on two vegetable crops and the effect of the host plant on the predator efficiency. The average period of the different stages of E.scutalis differed according to the type of rearing. The adult female could live without food in the rearing cells for an average of 2.5 days, while it lived 3.0 and 2.27 days on cucumber and kidney bean, respectively. Longevity of adult female was 13.27 days for those reared on pollen grains. The total life span was shorter in case of rearing the predator on clean cucumber and kinney bean leaves (7.79 and 7.45 days, respectively), while it reached 16.18 days when pollen grains were added. Larvae failed to reach the nymphal stage in case of the rearing cells. Data also indicated that the predator reared on kidney bean was more active than that reared on cucumber where the percentage of consumed Tetranychus ur­ticae Koch nymphs were 50 and 61.12% for both plants, respectively. The percentage of consumed larvae were 44.45 for both hosts.
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