Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2019
  • Volume: 43
  • Issue: 1

Effect of some tea cultivars on the growth and development of Hyposidra talaca Walker (Lepidoptera: Geometridae)

1Department of Agricultural Entomology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar-736 165, West Bengal, India

Plant Protection Unit, North Bengal Regional R&D Centre, Tea Research Association, Nagrakata-735 225, West Bengal, India

*Corresponding author's present address: Darjeeling Tea Research and Development Centre, Tea Board India, A.B. Path, Kurseong-734 203, West Bengal, India; E-mail: anirbanbm@yahoo.co.in

Online published on 8 April, 2019.

Abstract

Effect of four clonal cultivars of tea, Camellia sinensis (L.) O Kuntz. viz., TV1, TV9, TV25 and Teen ali 17 on growth and development of black looper, Hyposidra talaca were studied under laboratory conditions. The longest and shortest larval duration was recorded on TV25 (18.33 days) and Teen ali 17 (16.89 days) clone respectively. Mean larval lengths ranged from 42.50 mm (TV25) to 43.88 mm (Teen ali 17) whereas prepupae (20.38 mm) and pupae (16.63 mm) developed on Teen ali 17 were the largest of all. Heaviest prepupae (391.25 mg) and pupae (331.25 mg) developed on Teen ali 17. The highest growth indices (5.33) and survival rate of the insect were recorded on Teen ali 17.

Keywords

Tea, Hyposidra talaca, growth and development, clonal cultivars