Contact: +91-9711224068
Journal of Entomology and Zoology Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

updates
NAAS Rating: 5.53 NEW
2015, Vol. 3, Issue 4
Biology and population dynamics of new colour morph of Chromaphis juglandicola Kalt.(Hemiptera: Aphididae) in Kashmir, India

SA Wani, ST Ahmad

White morph of Chromaphis juglandicola Kalt. has been reported for the first time by the authors during present study undertaken in Kashmir valley. Laboratory investigations comparing the two colour morphs did not show any difference in the developmental characteristics of white and yellow aphids, but a slight reproductive advantage for white morphs. The reproductive rate of white morph was greater over first two days of adult life with mean values of 6.5 and 11.1 nymphs, while that of yellow ones was 2.7 and 4.6 nymphs (p < 0.05) for 1st and 2nd days respectively. Of the walnut aphid population present in the orchards of the valley, white morph accounted for zero to 35% in the month of May, 2013 and 77.6% to 93% in the month of September, 2013. Percentage of aphids (both morphs) showed fluctuations during the years with a declining trend in numbers towards Oct-Nov. The percentage of white morph compared to yellow one increased during the same period.
Pages : 28-31 | 794 Views | 9 Downloads
How to cite this article:
SA Wani, ST Ahmad. Biology and population dynamics of new colour morph of Chromaphis juglandicola Kalt.(Hemiptera: Aphididae) in Kashmir, India. Journal of Entomology and Zoology Studies. 2015; 3(4): 28-31.
Call for book chapter
Journals List Click Here Research Journals Research Journals
Please use another browser.