Mesbah,, I. (2000). CONSUMPTION OF SUGAR-BEET LEAF AREA BY THE TORTOISE BEETLE, Cassida vittata VILL. Journal of Plant Protection and Pathology, 25(6), 3677-3685. doi: 10.21608/jppp.2000.259156
I. I. Mesbah,. "CONSUMPTION OF SUGAR-BEET LEAF AREA BY THE TORTOISE BEETLE, Cassida vittata VILL". Journal of Plant Protection and Pathology, 25, 6, 2000, 3677-3685. doi: 10.21608/jppp.2000.259156
Mesbah,, I. (2000). 'CONSUMPTION OF SUGAR-BEET LEAF AREA BY THE TORTOISE BEETLE, Cassida vittata VILL', Journal of Plant Protection and Pathology, 25(6), pp. 3677-3685. doi: 10.21608/jppp.2000.259156
Mesbah,, I. CONSUMPTION OF SUGAR-BEET LEAF AREA BY THE TORTOISE BEETLE, Cassida vittata VILL. Journal of Plant Protection and Pathology, 2000; 25(6): 3677-3685. doi: 10.21608/jppp.2000.259156
CONSUMPTION OF SUGAR-BEET LEAF AREA BY THE TORTOISE BEETLE, Cassida vittata VILL
Economic Entomology Department, Faculty of Agriculture, Kafr El-Sheikh, Tanta University
Abstract
Feeding experiment was carried out on Cassida vittata Vill. under out door conditions. Sugar-beet leaf area consumption of larval and adult stages was estimated. The mean sugar-beet leaf area consumption was 170.5 mm2 per larva during 17 days. The 4th and 5th instars consumed 84.4% of the total leaf area consumption. The newly emerged adult consumed 754.3 mm2 of sugar-beet foliage during 28 days, while reactivated adult consumed 2369 mm2 for a period of 80 days, the mean sugar-beet leaf area consumed by one adult over mature stage (before and after diapause) was 3123.3 mm2, represents Ca. 94.8% of the total consumption. The mean consumed by a single individual of Cassida vittata throughout its life span (larva and adult) was 3293.8 mm2 for a period of 125 days. The adult female laid an average of 190.7 + 7.44 eggs/female and oviposition period averaged 37.67 + 3.06 days.
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