A mass rearing strategy of Chrysoperla carnea Stephens (Neuroptera: Chrysopidae) under variable light wavelength and light intensity. | [International Journal of Biology and Biotechnology • 2019]

Author(s):

1. Amjad Sultan: Department of Agriculture and Agribusiness Management, University of Karachi, Karachi-75270, Pakistan

2. M. Farhanullah Khan: Department of Zoology, University of Karachi, Karachi-75270, Pakistan

3. M. Faheem Akbar: Department of Agriculture and Agribusiness Management, University of Karachi, Karachi-75270, Pakistan

4. Shagufta Siddique: Department of Agriculture and Agribusiness Management, University of Karachi, Karachi-75270, Pakistan

5. Asad Manzoor: Department of Agriculture and Agribusiness Management, University of Karachi, Karachi-75270, Pakistan

Abstract:

The present study was conducted to determine the effect of different light wavelengths and light intensity on fecundity and developmental parameters of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae). Three photoperiod regimes were applied with five different light wavelengths (red, yellowish, bluish, green and white) under controlled temperature conditions 26 ± 2oC and 65 ± 5% RH. C. carnea females responded green light (495-570 nm) for egg laying and laid the highest 18.33 ± 0.33, 15.67 ± 1.45 and 12.33± 0.88 eggs in varying photoperiod regimes in order of Green > Red > White > Blue > Yellow. Light intensity also affected the fecundity and developmental parameters of C. carnea. The shortest developmental time and fecundity was recorded in 6384 W.m-2. Through the combination of a-biotic factors like photoperiod, light wavelength and light intensity can help with improved mass production technology at an appropriate cost of C. carnea for farmers and commercial insectaries around the world.

Page(s): 975-978

DOI: DOI not available

Published: Journal: International Journal of Biology and Biotechnology, Volume: 16, Issue: 4, Year: 2019

Keywords:

Chrysoperla carnea , light intensity , egg laying , light wavelengths

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