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Bionomics and population dynamics of Bemisia tabaci on subabul (Leucaena leucocephala)

Indian Agricultural Research Journals

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Title Bionomics and population dynamics of Bemisia tabaci on subabul (Leucaena leucocephala)
 
Creator CHAUBEY, RAHUL
C, NAVEEN N
ANDREW, R J
RAMAMURTHY, V V
 
Subject B. tabaci, Leucaena leucocephala, Population dynamics, Sex ratio, Spatial distribution, Weather factors
 
Description Leucaena leucocephala (subabul) has been recently reported as a host plant of the polyphagous whitefly Bemisia tabaci (Gennadius) from India. A study was carried out on the population dynamics of this whitefly on leucaena for two years and it revealed that its populations reached a peak (121.58 and 134.83 adults per two leaves) in September. The spatial distribution pattern revealed that it is always an aggregated dispersion (Taylor’s Power Law) in all the strata but more aggregation in the middle leaves (b = 3.123). Linear association between population and weather factors revealed that maximum and minimum temperature had a significant positive correlation (r = 0.60, 0.54). The sex ratio in the field varied from 1:1.9 to 1:4.9 (male: female).The present observations indicate that incidence of B. tabaci on L. leucocephala, is an adaptation to a suitable host so as to survive during the winter season when the lowest temperature is about 2-4°C.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-02-18
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/38053
 
Source The Indian Journal of Agricultural Sciences; Vol 84, No 2 (2014)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/38053/17086
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences