Egg laying preferences of Poekilocerus pictus Fab. (Pyrgomorphidae, Orthroptera) in different types of soil
2007
Umrani, J.A. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Entomology) | Syed, T.S. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Entomology) | Kanher, N.A. (Shah Abdul Latif Univ., Khairpur (Pakistan). Dept. of Microbiology) | Kanher, F.M. (Department of Agriculture Extension, Sindh (Pakistan)) | Tunio, S.A. (Department of Agriculture Extension, Sindh (Pakistan))
The experiment was conducted on egg laying preference of Akk grasshopper Poekilocerus pictus in different types of soil under laboratory condition at temperature 25 plus minus 2 degree C during 2005, Department of Entomology, Sindh Agriculture University, Tandojam. The soil types included Rustam Silty clay loam, Lalin Silt loam, Pacca Matli silty complex, Miani silty Clay loam and Sarhad silty loam, with moisture contents of 0, 5, 10, 15, 20 and 25%, respectively. The results revealed that P. Pictus preferred Rustam Silty Clay loan soil with 5% moisture where it laid higher number of (41.62 eggs/female). The same soil type with 25% moisture was least preferred for egg laying (1.57 eggs/female) whereas in different soil and different moisture contents no egg laying was recorded on 0% soil content moisture Lalian and Miani, followed by 10%, 15% and 20% on Sarhad, Miani and Pacca soil recorded respectively. The over all average of egg laying preference of Akk grass hopper in the different types of soil revealed that Rustam Silty clay loam (12.45 eggs/female) was comparatively favourable soil for egg laying Akk grass hopper. Whereas the lowest preferred soil for fecundity was recorded on Lalian silt loam with an average (6.01 eggs/female) Akk grass hopper. From the present study it was concluded that Akk grass hopper, P. pictus showed significantly more preference in egg laying in soil containing 5% moisture.
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