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Chemical analysis of honeydews from two wheat aphid species and effects of natural enemies on their behavioral responses(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2003 Vol.09 No.2
Page:
171-174
Research Field:
Reviews
Publishing date:

Info

Title:
Chemical analysis of honeydews from two wheat aphid species and effects of natural enemies on their behavioral responses
Author(s):
LIU Yonget al.
(1 Postdoctoral Station of Shandong Agricultural University, Taian,Shandong271018, China) (2Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100094, China)
Keywords:
Keywords wheat aphids honeydew natural enemies behavioral responses
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
Abstract Sugars in honeydew of Sitobion avenae comprised glucose, saccharose, fructose and other two kinds of unknown sugars. The proportion of saccharose in the honeydew of S.avenae was the highest but no in Rhopalosiphum padi. Except threonine, free amino acids in honeydew of S. avenae and R. padi were the same. The quantity of free amino acids in honeydew of S. avenae was higher than that of R. padi except for alanine and histidine. Leusine (0.204 7 ng) and alanine (0.137 7 ng) were the two kinds of highest free amino acid in S.avenae secretions per aphid per day, and alanine (0.154 3 ng), leusine (0.102 5 ng) in R.padi. With the increasing of honeydew dose, the retention and searching time of Aphidius avenae, Chrysopa sinica, Chrysopa septempuctata, Coccinella septempunctata and Propylaea japonica were longer,but the tendency were smooth. The retention and searching times of A. avenae to honeydews of the two aphid species were notably different, but C. sinica, C. septempunctata, C. septempunctata and P. japonica were not. Fig 3, Tab 1, Ref 13

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Last Update: 2001-04-23