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The Influence of Iron Sulfate Application Interval on the Suppression of Microdochium Patch on an Annual Bluegrass Research Green in Western Oregon
Author(s) -
Mattox Clint,
Kowalewski Alec,
McDonald Brian
Publication year - 2019
Publication title -
crop, forage and turfgrass management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.29
H-Index - 10
ISSN - 2374-3832
DOI - 10.2134/cftm2019.05.0041
Subject(s) - sulfate , schedule , interval (graph theory) , environmental science , toxicology , mathematics , biology , chemistry , computer science , combinatorics , organic chemistry , operating system
Core Ideas Two pounds of Iron sulfate heptahydrate per thousand square feet applied every two weeks suppresses Microdochium patch more consistently than a four week application interval and more effectively than a six or eight week interval at the peak of disease. Regardless of the iron sulfate application interval, the turfgrass quality was considered unacceptable because of either a lack of complete disease control or turfgrass thinning caused by the iron sulfate treatments. Future research will be necessary to determine if it is possible to move away from a calendar based spray schedule by developing a weather based application model.