GROWTH RATE OF POTATO TUBER MOTH, PHTHORIMAEA OPERCULELLA (ZELLER) ON POTATO LEAVES AND TUBERS UNDER MID HILLS OF HIMACHAL PRADESH


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Authors

  • R. S. Chandel
  • Rajnish Kumar
  • P. K. Mehta

Abstract

Growth rate of Phthorimaea operculella (Zeller) was studied by developing fertility schedules on potato leaves and tubers under laboratory conditions. The population of P. operculella multiplied 16.84-33.75 times over a generation time(T) of 25.58-47.06 days in different generations during February – October. The multiplication rate was lower during AugustOctober in fifth and sixth generations with slightly higher generation times (35.39 – 47.07 days). The highest multiplication rate was recorded during June in third generation. The doubling time (DT) was also shortest (5.50 days) in June-July during third and fourth generations.

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Author Biography

  • P. K. Mehta
    Department of Entomology, CSK HPKV Palampur-176 062, Himachal Pradesh, India.

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Issue

Vol. 33 No. 3 - 4 (2006)

Section

Articles

License

The copyright of the articles published in Potato Journal is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

Chandel, R. S., Kumar, R., & Mehta, P. K. (2013). GROWTH RATE OF POTATO TUBER MOTH, PHTHORIMAEA OPERCULELLA (ZELLER) ON POTATO LEAVES AND TUBERS UNDER MID HILLS OF HIMACHAL PRADESH. Potato Journal, 33(3 - 4). https://epubs.icar.org.in/index.php/PotatoJ/article/view/33222