Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2010.19.32Beauveria bassiana against the Tiger Moth, Atteva sciodoxa (Lepidoptera: Yponomeutidae)]]>AboodF. BajwaG.A. IbrahimY.B. SajapA.S. 1201071Seven isolates of Beauveria bassiana were screened for pathogenicity and infectivity at a concentration of 5x107 conidia mL-1 against Atteva sciodoxa at 27±2°C and 75±5% relative humidity with 12 h photoperiod. Based on screening results, isolates Bba-Pp and FS-11 were further bioassayed at 1x106, 5x106 and 1x107 conidia mL-1. All the isolates were found to be pathogenic. However, the infectivity varied significantly among the isolates. The earliest mortality was recorded three days after inoculation. The most virulent isolate, Bba-Pp, caused 100% mortality with a median infective time (ET50) of 3.6 days on day seven following inoculation while FS-11 caused 83.3% mortality with an ET50 value of 4.1 days. Bba-Sl3 was the least infective isolate with 24.9% mortality and 15.3 days of median effective time. Mycelia appeared on 24 to 48 h old cadavers. The highest level of sporulation on two-week old cadavers was 150.6x105 Bba-Pp conidia mg-1 cadaver while the lowest was 12.23x105 Bba-Sl3 conidia. The median effective concentration (EC50) of Bba-Pp was 9.89x105 conidia mL-1 while that of FS-11 was 3.85x106 conidia mL-1. The ET50 values for 1x106 and 1x107 conidia mL-1 of Bba-Pp ranged between 7.0 and 4.4 days, respectively, while that of FS-11 were 10.3 and 5.8 days. A strong negative correlation was found between inoculum concentrations and food consumption (R2 = -0.99). The infection by Bba-Pp and FS-11 resulted in 55.8 to 72.5% reduction in food consumption by A. sciodoxa compared to the controls.]]>Abbott, W.S.,192518265267Abood, F., G.A. Bajwa, Y.B. Ibrahim and A.G. Ab-Rasip, 2008Atteva sciodoxa Meyrick (Lepidoptera: Yponomeutidae) fed on Eurycoma longifolia. ]]>71197204Adane, K., D. 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