Skip to Main Content
Root starch in defoliated sugar maples following thrips damageAuthor(s): Barbara S. Burns
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: 257-265.
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
PDF: Download Publication (288.74 KB)
DescriptionSugar maple root starch evaluations were done in 1987 and 1988 as a service to Vermont sugarmakers concerned about tree health. Trees were rated for starch content in late fall, using a visual iodine-staining technique. On the average, trees with heavy pear thrips damage in the spring of 1988 had higher levels of root starch the following fall than trees with light or moderate damage. Trees with heavy damage actually had more starch in 1988 than they had the previous fall. Starch in trees with light and moderate defoliation did not increase. Possible explanations for higher starch in heavily damaged trees include early refoliation, energy reserves from the first leaf flush, and 1988 drought conditions.
- 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.
CitationBurns, Barbara S. 1991. Root starch in defoliated sugar maples following thrips damage. 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: 257-265.
- The relationship between measures of tree vigor and pear thrips damage in sugar maple
- Impacts of pear thrips on a Pennsylvania sugarbush: third year results
- Bioecology of pear thrips: distribution in forest soils
XML: View XML