Visual Monitoring Trap for Tarnished Plant Bug Adults on Apple1
作者:
Ronald J. Prokopy,
Geoffrey L. Hubbell,
Roger G. Adams,
Karen I. Hauschild,
期刊:
Environmental Entomology
(OUP Available online 1982)
卷期:
Volume 11,
issue 1
页码: 200-203
ISSN:0046-225X
年代: 1982
DOI:10.1093/ee/11.1.200
出版商: Oxford University Press
数据来源: OUP
摘要:
Sticky-coated, non-ultraviolet-reflecting white rectangle traps (15 by 20 cm) hung from apple tree branches at ca. 70 cm above ground proved significantly more effective 10 detecting adult tarnished plant bugs(TPB),Lygus lineolaris(Palisot de Beauvois), than three other sampling methods: visual counts of adults on trees, limb jarring of adults onto a drop cloth, and net sweeps of ground cover vegetation. For 12 orchard situations in which no prebloom. insecticide treatments were applied, there were significant positive linear relationships between levels of TPB-injured fruit at harvest and cumulative trap capture levels through the tight-cluster (r2= 0.736) and late-pink (r2= 0.526) stages of flower bud development. If the economic injury level for TPB is considered to be 2.0% fruit damage, then our findings suggest a tentative action threshold of cumulative capture of 3.0 adults per trap through tight cluster or 4.4 adults per trap through late pink.
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