Biology and Morphometric Study of Okra Shoot and Fruit Borer Earias Vitella (F.)

Authors

  • Ankur Kulhari Rajasthan College of Agriculture, (RCA), Maharana Pratap University of Agriculture and Technology, University in Udaipur 313004, Rajasthan
  • Ravindra Kumar Patel Rajasthan College of Agriculture, (RCA), Maharana Pratap University of Agriculture and Technology, University in Udaipur 313004, Rajasthan
  • Mohan Lal Tetarwal Rajasthan College of Agriculture, (RCA), Maharana Pratap University of Agriculture and Technology, University in Udaipur 313004, Rajasthan
  • Tanmaya Kumar Bhoi Rajasthan College of Agriculture, (RCA), Maharana Pratap University of Agriculture and Technology, University in Udaipur 313004, Rajasthan
  • Ipsita Samal Rajasthan College of Agriculture, (RCA), Maharana Pratap University of Agriculture and Technology, University in Udaipur 313004, Rajasthan

DOI:

https://doi.org/10.55446/IJE.2023.489

Keywords:

Okra, shoot and fruit borer, biology, fecundity, morphometrics, instars, incubation period, longevity, lifecycle, oviposition

Abstract

Investigations on biology of shoot and fruit borer (Earias vitella) on okra revealed that the freshly laid eggs were spherical, bluish green and finally become brownish. These measured 0.52± 0.02 x 0.51± 0.02 mm.The incubation period was 3.35± 0.76 days, and larval stage passed through four instars. The first,second, third and fourth instar was 2.16± 0.71, 1.43± 0.50, 2.26± 0.73 and 3.30±1.02 days, respectivelywith the total larval period of 9.13± 1.71 days. These were measured 1.77± 0.28, 2.60± 0.40, 6.45± 0.56 and14.15± 2.12 mm long respectively and 0.27± 0.03, 0.36± 0.08, 1.24± 0.07 and 3.23± 0.51 mm, respectivelyin breadth. The pre-pupa lasted for 1.43± 0.50 days. The male and female pupa measured 9.78± 0.46 mmand 3.14± 0.31 mm, 10.14± 0.69 mm and 3.37± 0.09 mm, respectively, with duration of 7.90± 0.92 and7.53± 0.50 days, respectively. The adult male measured 9.13± 0.41 mm in length and 21.02± 0.98 mm inbreadth with expanded wings. Whereas, female 10.71± 1.14 mm in length and 22.30± 1.48 mm in breadthwith expanded wings. The preoviposition, oviposition and post-oviposition periods were 1.50± 0.68, 6.00±1.33 and 4.30± 1.53 days, respectively. The fecundity was 265.00± 86.75 eggs/ female. The total lifecycleof male was 30.51± 6.00 days, while in female it was 32.60± 5.59 days.

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Published

2023-02-21

How to Cite

Kulhari, A., Patel, R. K. ., Tetarwal , M. L. ., Bhoi, T. K. ., & Samal, I. . (2023). Biology and Morphometric Study of Okra Shoot and Fruit Borer <i>Earias Vitella</i> (F.). Indian Journal of Entomology. https://doi.org/10.55446/IJE.2023.489

Issue

Section

Research Articles

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