Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-02T07:34:19.307Z Has data issue: false hasContentIssue false

Role of Endothall in the Control of Annual Bluegrass in Turf

Published online by Cambridge University Press:  12 June 2017

A. J. Turgeon
Affiliation:
Dep. of Crop and Soil Sci., Michigan State Univ., E. Lansing, Michigan 48823
W. F. Meggitt
Affiliation:
Dep. of Crop and Soil Sci., Michigan State Univ., E. Lansing, Michigan 48823
Donald Penner
Affiliation:
Dep. of Crop and Soil Sci., Michigan State Univ., E. Lansing, Michigan 48823

Abstract

Endothall (7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid) was evaluated for controlling annual bluegrass (Poa annua L.) infestations in Kentucky bluegrass (Poa pratensis L.) and creeping bentgrass (Agrostis stolonifera L.) turfs. Growth of annual bluegrass was selectively suppressed by three applications of 0.6 kg/ha of endothall, two or three applications of 1.1 and 2.2 kg/ha, and one application of 4.5 kg/ha made to the single plant sand cultures. Field treatments were variable and seasonably dependent. Endothall selectively killed annual bluegrass when applied to roots in sand culture at a concentration of 2.7 × 10−4 molar. A granular formulation of endothall provided selective control of annual bluegrass in field and greenhouse studies. High watering frequency prior to application, low organic matter content of the underlying soil, and predominance of the annual biotype of annual bluegrass enhanced the selective action at the lowest rates of endothall application.

Type
Research Article
Copyright
Copyright © 1972 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Engel, R. E. and Aldrich, R. J. 1960. Reduction of annual bluegrass, Poa annua, in bentgrass turf by the use of chemicals. Weeds 8:2628.Google Scholar
2. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. Calif. Agr. Exp. Sta. Cir. 347: 32 p.Google Scholar
3. Horowitz, M. 1966. Breakdown of endothall in soil. Weed Res. 6:168171.Google Scholar
4. Ries, S. K. and Terry, C. W. 1951. The design and evaluation of a small plot sprayer. Weeds 1:160173.Google Scholar
5. Turgeon, A. J. and Meggitt, W. F. 1971. A small-plot sprayer. Weed Sci. 19:245247.Google Scholar