Pest Management in Horticultural Ecosystems
  • Year: 2015
  • Volume: 21
  • Issue: 1

Incidence of metallic shield bug, Scutellera perplexa (Westwood) (= S. nobilis Fabricius) on grape in Punjab

  • Author:
  • Sandeep Singh, Gurlaz Kaur
  • Total Page Count: 5
  • Page Number: 90 to 94

Department of Fruit Science, Punjab Agricultural University, Ludhiana-141 004, Punjab, India

*E-mail: sandeep_pau.1974@pau.edu

Online published on 15 May, 2017.

Abstract

Roving and fixed plot surveys were conducted during 2014–2015 to monitor the insect pests of grape crop in Punjab. During these surveys, the metallic shield bug, Scutellera perplexa (Westwood) (=Scutellera nobilis Fabricius) was observed as a minor pest. Eggs, nymphs and adults were observed on trunks, leaves and fruit bunches. Nymphs and adults were observed sucking sap from the leaves as well as from the fruits. These bugs caused direct damage by sucking sap and reducing quality of fruits and indirect damage by enhancing fungal attack on fruits at the points of puncture. Population was observed to be starting from 17th standard meteorological week(SMW)till the harvest of the crop(23rd SMW). Peak population was recorded during 20th SMW i.e. during last week of May.

Keywords

Grape, metallic shield bug, Scutellera perplexa