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RELEVANCE OF PLANT VOLATILES TO SEX PHERO‐MONE IN LURING APHIDS IN THE FIELD 1
Author(s) -
Feng ZHANG,
Jingong XIANGYU,
Wenjun GENG,
Zhongning ZHANG
Publication year - 2000
Publication title -
insect science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 45
eISSN - 1744-7917
pISSN - 1672-9609
DOI - 10.1111/j.1744-7917.2000.tb00357.x
Subject(s) - biology , myzus persicae , aphid , sex pheromone , kairomone , orchard , attraction , botany , pheromone , horticulture , rhopalosiphum padi , host (biology) , pest analysis , aphididae , homoptera , ecology , linguistics , philosophy
Outdoor trials were made to test the responses of male aphids to pheromone lures in fields with different host‐plants, in order to know whether host‐plants would affect catches of males to pheromone lures. In peach orchard, males of three aphid species, i.e. Myzus persicae, Hyalopterus amygdali and Rhopalosiphum nymphaeae , were found in traps baited with aphid sex pheromone nepetalactone and nepetalactol. The most numerous numbers was M, persicae and it was also attracted by plant‐derived nepetalactone alone in peach orchard and cabbage garden. Schizaphis graminum males were caught in water traps in wheat field. In apple orchard, males of two aphid species, Aphis cifricola and Sappaphis sinipiricola were caught in significantly larger numbers in the pheromone traps than in the control traps. Field study indicated that the sex pheromone of H. amygduli comprises either one or both of nepetalactone and nepetalactol, and nepetalactone may be one component of sex pheromones of A cifricola and S sinipiricola Another field trial had shown that catches were increased if volatiles from a steam‐distilled extract of peach leaves were released simultaneously with nepetalactone. Elec‐troantennograms (EAGs) were recorded from males of M. persicae to volatiles of peach leaves and buds.