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Paper Information

Journal:   WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)   FALL 2004 , Volume 8 , Number 3; Page(s) 209 To 217.
 
Paper: 

STUDY ON LIFE AND FERTILITY TABLES OF ELM LEAF BEETLE, XANTHOGALERUCA LUTEOLA MÜLLER ON FOUR DIFFERENT HOSTS UNDER LABORATORY CONDITIONS

 
 
Author(s):  KHALILI MAHANI M., SEYED ALESLAMI H., HATAMI B.
 
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Abstract: 

Elm leaf beetle, Xanthogaleruca luteola (Müller), life and fertility tables were investigated under laboratory conditions (25±2oC, 70±5%R.H. and 16L: 8D), on Ulmus carpinifolia, U.c.var.umbraculifera, U. glabra var. pendula and Celtis caucasica, in spring and summer. Since the experiments were conducted under controlled conditions, feeding on hosts with different nutritional qualities was considered to be the only cause of mortality. The aim of this study was to determine the susceptible hosts to the pest. The initial population for each life table was 100 first larval instar on 20 cm foliage which continued to the end of adult longevity. For larval and adult feeding, the foliage was replaced regularly. Larval and adult mortality and eggs number per female were recorded on a daily basis.
Results showed that the net reproductive rate (R0) and intrinsic rate of increase (rm) were higher on U. carpinifolia than the other hosts in both seasons. The net reproductive rate was less than one on Celtis caucasica in spring and on U. c. var. umbraculifera in summer, which represented the negative population growth on these hosts. Therefore, U. carpinifolia was the most susceptible host to Elm leaf beetle, the other susceptible hosts being U. glabra var. pendula and U. c. var. umbraculifera, in a descending order and Celtis caucasica was the least susceptible one.

 
Keyword(s): ELM LEAF BEETLE, LIFE AND FERTILITY TABLE, INTRINSIC RATE OF INCREASE, NET REPRODUCTIVE RATE, HOST PREFERENCE
 
References: 
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