Skip to Main Content
Bioecology of pear thrips: distribution in forest soilsAuthor(s): Margaret Skinner; Bruce L. Parker
Source: Parker, Bruce. L.; Skinner, Margaret; Lewis, Trevor, eds. Towards Understanding Thysanoptera. Gen. Tech. Rep. NE-147. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 193-211.
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
PDF: View PDF (648.18 KB)
DescriptionThe vertical and horizontal distribution of pear thrips in Vermont sugar maple forest soils was investigated. In the fall, about 86% of the thrips were found in the upper 10 cm of soil, though a few were found as deep as 20 cm. No thrips were found in the leaf litter. Soil sampling tools to determine thrips populations within an entire forest were tested and a standard hand-held bulb planter was found to be the most effective. No consistent pattern in thrips distribution around individual sugar maple trees was found. Pear thrips distribution within a forest stand predominating in sugar maple appeared to be random, but clumped, and variation in the density of pear thrips among individual samples was relatively high. For conducting soil sampling on a statewide scale, ten soil samples per sugarbush was found to be sufficient for estimating pear thrips population levels within an acceptable error range.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSkinner, Margaret; Parker, Bruce L. 1991. Bioecology of pear thrips: distribution in forest soils. Parker, Bruce. L.; Skinner, Margaret; Lewis, Trevor, eds. Towards Understanding Thysanoptera. Gen. Tech. Rep. NE-147. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 193-211.
- The relationship between measures of tree vigor and pear thrips damage in sugar maple
- Detection of pear thrips damage using satellite imagery data
- Impacts of pear thrips on a Pennsylvania sugarbush: third year results
XML: View XML