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Grub Density of Lepidiota mansueta (Coleoptera: Scarabaeidae) in Different Habitats of the Majuli River Island of Assam, India

Pujari, D. and Bhattacharyya, B. (2016) Grub Density of Lepidiota mansueta (Coleoptera: Scarabaeidae) in Different Habitats of the Majuli River Island of Assam, India. Acta Phytopathologica et Entomologica Hungarica, 51 (1). pp. 93-101. ISSN 0238-1249

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Abstract

Grub density of Lepidiota mansueta beetle was assessed in five ecologically different habitats viz., open grassland; open cultivated land; cultivated field near tree; grassland near stream and cultivated land near stream on the basis of soil sampling carried out in five selected villages of the Majuli river island of Assam. Highest mean density of grub (8.0 and 6.5/m<sup>3</sup>) was recovered from grasslands near stream, followed by open grassland (4.6 and 4.7/m<sup>3</sup>), cultivated field near stream (1.8 and 1.4/m<sup>3</sup>), open cultivated field (1.1 and 1.2/ m3) and cultivated field near tree (1.0 and 1.2/m<sup>3</sup>) during 2011 and 2012, respectively. Fortnightly soil sampling conducted in grassland and cultivated land revealed that grubs of L. mansueta were confined in the upper most layer of soil (0–20 cm depth) during summer season (April–September) and moved to deeper soil layers during winter season (October–March). Majority of the grubs (81.83 per cent in grassland and 72.73 per cent in cultivated land) were recorded within the top 20 cm of soil. However, no grubs were noticed beyond 40 cm of soil depth.

Item Type: Article
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
Q Science / természettudomány > QL Zoology / állattan > QL01 Systematic zoology / állatrendszertan
Depositing User: Ágnes Sallai
Date Deposited: 08 Jun 2016 06:38
Last Modified: 30 Jun 2017 23:15
URI: http://real.mtak.hu/id/eprint/35690

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