Intra-tree Dispersion of Citrus Blackfly12
作者:
Ronald Cherry,
George Fitzpatrick,
期刊:
Environmental Entomology
(OUP Available online 1979)
卷期:
Volume 8,
issue 6
页码: 997-999
ISSN:0046-225X
年代: 1979
DOI:10.1093/ee/8.6.997
出版商: Oxford University Press
数据来源: OUP
摘要:
Intra-tree dispersion of citrus blackfly (Aleurocanthus woglumiAshby) was measured by counting leaves infested with insect products (index) and live insects. Adults (16,000) were also released to measure within tree movement. Leaves infested with insect products (index) were found more concentrated in the lower and interior part of a tree. However leaves infested with live citrus blackfly were found more concentrated in the lower, but not interior part of a tree. Reasons for this discrepancy are discussed. Differences in directional quadrats were minor using both sampling techniques. No conclusions could be drawn from the experiment releasing adults because of the low recovery (<1%) 24 h later.
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