Abstract
This experiment were carried out to study the effect of treatment of newly hatched (neonate) larvae and pupae of the pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae) with different entomopathogenic fungi; Biover (Beauveria bassiana) and Bioranza (Metarhizium anisoplae) was investigated under laboratory conditions of 27 ± 1o C and 65 % ± 10 % R.H. The results show that P. Gossypiella was susceptible to both fungi. LC50 values obtained were1.42 and 0.98 glfor P. Gossypiella larvae treated with different concentrations of B.bassiana and M.anisopilae, respectively. The biological aspects of P. gossypiella were affected when treating the newly hatched larvae with the LC50's of both fungi. Results generally revealed changes in the different biological aspects (larval duration, pupation percentage, pupal duration and the percentage of adult emergence). Determine the effect of B. bassiana and M. anisopliae on the prey consumption rate of Oriusa lbidipennis to pink bollworm eggs.
Highlights
In Egypt, many economic pests infest cotton through the season
Deuteromycetes fungi produce conidia which are distributed randomly by wind and water. Fungal entomopathogens such as Lecanicillium spp., B. bassiana, M. anispoliae, Isaria farinose and Isaria fumosorosea play on important role in the regulation of insect populations (Zimmermann, 2008 and Gurulingappa et al 2011)
Effect of LC50 of different entomopathogenic fungi on pupal duration of P. gossypiella: The mean pupal duration of P. gossypilla pretreated of newly hatched larvae with B. bassianaand M. anisopliae were 9.22 and 9.36 days respectively, treated with LC50, compared 7.32 daysin control [Table4]
Summary
Effect of Beauveria bassiana and Metarhizium anisoplae on some biological aspect of Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae). El-Akad, A.S.1; El-Banna, A.A.1; Abd El-Wahab, I.S.2; Abd El-aal, A.E.2and Amin, N. Of Entomology; Faculty of science; Ain Shams University. 2- Plant protection Research Institute, Agricultural Research Center
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