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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(2): 710-717
DOI: https://doi.org/10.20546/ijcmas.2018.702.089


The Life History and Population Growth Parameters of Leaf Eating Caterpillar Cricula trifenestrata Helfer (Lepidoptera: Saturniidae) Infesting Menochilus bombycina King
S.K. Gharde* and N. Chaudhuri
Department of Agricultural Entomology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar-736165, West Bengal, India
Department of Plant Protection, Lovely Professional University, Phagwara, Jalandhar-144411 Punjab, India
Discipline of Agricultural Entomology, Regional Research Station, Terai Zone, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar-736165, West Bengal, India
*Corresponding author
Abstract:

The goal of this experiment was to study the life history and population growth parameters of Cricula trifenestrata Helfer (Lepidoptera: Saturniidae) reared on Machilus bombycina King, the food plant of muga silkworm (Antheraea assama Westwood). Biological and life table parameters differed significantly in different generations. The longest and shortest larval period of 43.68±1.34 and 38.67±1.13 days were recorded in January-March and May-October generations respectively. The development time of total pre adult was shortest in March-May (77.12±1.73 and 78.42±1.60 days for male and female) generation. The egg to adult survivorship and fecundity were highest in October-January generation (49.00±1.45% and 122.35±3.02). The sex ratio was male-biased. The highest intrinsic rate of increase (rm), finite rate of increase (λ) and the shortest mean generation (GT) and doubling time (Td) were recorded during January-March. The lowest intrinsic rate of increase (rm), finite rate of increase (λ) and the longest mean generation time (GT) and doubling time (Td) were recorded during May-October. The highest and lowest net reproductive rate (Ro) and potential fecundity occurred in female of October-January and March-May generation respectively. The results revealed that May-October was the most unsuitable month for population growth of C. trifenestrata. So, control measure if be taken for the pest during May to October, then the percent of damage caused by the caterpillar can be minimized, that might improve the performance of Antheraea assama during commercial rearing seasons in terai region of West Bengal.


Keywords: Cricula trifenestrata, Development, Survivorship, Life table
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How to cite this article:

Gharde, S.K. and Chaudhuri, N. 2018. The Life History and Population Growth Parameters of Leaf Eating Caterpillar Cricula trifenestrata Helfer (Lepidoptera: Saturniidae) Infesting Menochilus bombycina King.Int.J.Curr.Microbiol.App.Sci. 7(2): 710-717. doi: https://doi.org/10.20546/ijcmas.2018.702.089