SCREENING OF BETELVINE CULTIVARS FOR RESISTANCE TO BETELVINE WHITEFLY, Singhiella pallida (Singh) (HEMIPTERA : ALEYRODIDAE) AND NEW HOST PLANT RECORDS

B K DAS, S K MALLICK

Abstract


Betelvine (Piper betle L.) is a perennial dioecious evergreen creeper, grown in  shady  condition with high  humidity.   Betelvine whitefly,  Singhiella  (Dialeurodes)
pallida (Singh) (Hemiptera : Aleyrodidae) is an important and common pest of betelvine causing severe damage  to betel  leaves.   Screening of betelvine cultivars  for  resistance
to betelvine whitefly, S. pallida was  carried out  in  a  conservatory  (boroja)  located  at the Research Farm of Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal for
two consecutive years (2005 and 2006). A total of twenty-three cultivars were evaluated. Suitability of  three  species of Piper as  the hosts of betelvine whitefly was also  tested.
None of the tested cultivars of betelvine was completely free from whitefly infestation, though  Simurali  Sanchi  and Kalipatti  (both  are  of  Sanchi  type) were  found  to  be
moderately resistant in both the years. Here, three species of the genus Piper (P. longum, P.  chaba  and P. hamiltonii) have been  recorded  as  the new hosts of S. pallida.

Keywords


Betelvine; resistance; Singhiella pallida

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