You are here: Home
/ Publication Information
Title: Biological Control of Septoria Leaf Spot Disease of Hybrid Poplar in the Field
Author: Gyenis, Laszlo; Anderson, Neil A.; Ostry, Michael E.
Source: Plant Disease 87(7):809-813
Publication Series: Scientific Journal (JRNL)
Description: Biological control of Septoria leaf spot of hrhrid poplars was investigated using disease-suppressive Streptomyces strains. Field experiments were conducted in 1998 and 1999 on potted trees placed in a hybrid poplar plantation near Rosemount, MN, and on field-planted trees in 1998 at St. Paul. At both locations, one resistant and three susceptible hybrid poplar clones were sprayed with Streptomyces spore suspensions and exposed to natural field inoculum of Septoria musiva. In the 1998 potted-tree experiment, strains GS-93-3, 93, and Mycostop in Tergitol Triton X-100 solutions applied every 7 days significantly reduced leaf disease by 29 to 83% compared with the controls. In the I999 potted-tree experiment, Streptomyces strain mixtures in Tergitol solution applied every 5 days significantly reduced leaf disease by 50 to 87% compared with the controls. In the 1998 plantation experiment, strains GS-93-3, 93, or Mycostop in Tergitol solution applied weekly, bi-monthly, or monthly significantly reduced leaf disease in all treatments by 64 to 78% compared with the controls.
Keywords: gram-positive bacteria, Mycosphaerella populorum, Populus spp
- 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.
- This publication may be available in hard copy. 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.
XML: View XML
Gyenis, Laszlo; Anderson, Neil A.; Ostry, Michael E. 2003. Biological Control of Septoria Leaf Spot Disease of Hybrid Poplar in the Field. Plant Disease 87(7):809-813
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility