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Title Transcription
テントウムシ ノ ハツイク ト ホショク カツドウ
Title Alternative (English)
The Larval Period and Predacious Activity of an Aphidophagous Coccinellid, Harmonia axyridis PALLAS
File
language
jpn
Author
Miura, Tadashi
Nishimura, Shigeru
Description
An aphidophagous coccinellid, Harmonia axyridis PALLAS, were reared in the insectarium without any environmental control for a period from May 18 to June 2, 1968. Average durations of the 1st 2nd, 3rd and 4th larval instars were 88.90, 61.35, 80.65 and 129.22 hrs, respectively. Average numbers of aphids eaten in those instars were 4.95, 9.60, 27.15 and 100.22 though beetle did not take any aphid during the time of ecdysis, 25, 15, 23 and 4hrs. The relation between the log number of aphids eaten(y) and larval instars(X) was expressed by an equation : Y=0.2893+0.0048 X. Average number of aphids eaten per day by an adult was 17.17. The beetles were active in predation for the period from 10 to 16 O'clock of a day. This indicates that the beetle may be active throughout the daytime, thought it is largely affected by temperature, humidity and evaporation in environment.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
14
Start Page
144
End Page
148
ISSN
0370940X
Published Date
1980-12-15
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
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