Influence of Weather Factors on the Incidence of the Mulberry Aleyrodid, Dialeuropora decempuncta (Quaintance and Baker) and Their Relation to Yield Loss

  • Bandyopadhyay U. K. (Entomology Division, Central Sericultural Research & Training Institute) ;
  • Santhakumar M. V. (Entomology Division, Central Sericultural Research & Training Institute) ;
  • Sahu P. K. (Department of Agricultural Statistics, Bidhan Chandra Krishi Viswavidyalaya) ;
  • Saratchandra B. (Entomology Division, Central Sericultural Research & Training Institute)
  • 발행 : 2005.12.01

초록

The seasonal occurrence and influence of abiotic factors viz., maximum and minimum temperature, maximum and minimum humidity and rainfall on population fluctuation of aleyrodid, Dialeuropora decempuncta on a evolved mulberry (Morus alba L.) variety known to be susceptible to aleyrodid infestation was assessed during the period from 1999 - 2001 in twenty-five villages under nine blocks of Malda district of West Bengal. The results indicate that the aleyrodid population is practically very low or absent during January to June and thereafter increases gradually. The increase in population of various stages of aleyrodid is significantly correlated with increase in previous 7 days of average maximum relative humidity.

키워드

참고문헌

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