(3.230.154.90)
[ij] [ij] [ij] 
Email id
 

International Journal of Farm Sciences
Year : 2017, Volume : 7, Issue : 3
First page : ( 141) Last page : ( 145)
Print ISSN : 2229-3744. Online ISSN : 2250-0499.

Life stages, longevity, seasonal abundance and nature of damage of Cyllodes indicus Grouvelle (Coleoptera: Nitidulidae) on oyster mushroom, Pleurotus sajor-caju

Khanna Anju S*, Sharma Anurag, Kumar Sunil

Department of Entomology, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan-173230, Himachal Pradesh, India

*Email for correspondence: anjusk20@yahoo.in

Online published on 2 May, 2018.

Abstract

Studies were conducted on the life stages, longevity, seasonal abundance and nature of damage of Cyllodes indicus commonly known as sap beetle on oyster mushroom, Pleurotus sajor caju. The beetle completed its life cycle in four stages viz egg, grub, pupa and adult and took 15–16 days to complete one life cycle on oyster mushroom. It appeared in the farm immediately after first showers of rain; its peak population was observed during August and September and insect remained in the farm till the termination of the crop. Both grubs and adults were found to feed on mycelium as well as sporocarps of mushroom. They fed on mycelium until the initiation of pin heads and once the pins started emerging they became the preferred site for grubs which immediately started tunneling into the growing stipe and reached pileus region where they found a suitable hiding place, pupated and newly emerged adults voraciously fed on the sporocarps. As a result of tunneling by the grubs the connection of emerging sporocarps to its substrate got weakened with occasional drooping of fruiting bodies. Visual symptoms were manifested in the form of tunnels in the gills of newly emerging fruiting bodies often referred as salt shaker pins. The adults made irregular holes in the stipe of sporocarps resulting into their deformity. The adult beetles survived for an average of 20.1 days when fed upon the sporocarps of oyster mushroom but in the absence of food their life span was reduced to just 2.7 days.

Top

Keywords

Pleurotus sajor-caju, sap beetle, sporocarps, tunneling, salt shaker pins.

Top

 
║ Site map ║ Privacy Policy ║ Copyright ║ Terms & Conditions ║ Page Rank Tool
753,878,129 visitor(s) since 30th May, 2005.
All rights reserved. Site designed and maintained by DIVA ENTERPRISES PVT. LTD..
Note: Please use Internet Explorer (6.0 or above). Some functionalities may not work in other browsers.