Evaluation of fungicide and plant growth regulator tank-mix programmes on dollar spot severity of creeping bentgrass

被引：18
|
作者：
Fidanza, M. A.
Wetzel, H. C., III
Agnew, M. L.
Kaminski, J. E.
机构：
[1] Penn State Univ, Reading, PA 19610 USA
[2] Vero Beach Res Ctr, Syngenta Crop Protect, Vero Beach, FL 32967 USA
[3] Syngenta Profess Prod, Greensboro, NC 27409 USA
[4] Univ Connecticut, Dept Plant Sci, Storrs, CT 06269 USA
来源：
CROP PROTECTION | 2006年 / 25卷 / 09期
关键词：
Sclerotinia homoeocarpa; turf; turfgrass; turfgrass quality;
D O I：
10.1016/j.cropro.2006.02.005
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Dollar spot (Sclerotinia homoeocarpa F.T. Bennett) is a common and destructive disease of creeping bentgrass, (Agrostis stolonifera L.). In 2003 and 2004, field studies were conducted to evaluate 14- and 21-day sequential fungicide tank-mix programmes alone and in combinations with plant growth regulators (PGRs) paclobutrazol, trinexapac-ethyl, or paclobutrazol plus trinexapac-ethyl on dollar spot of fairway-height creeping bentgrass. All fungicide-treated plots, either fungicides plus PGRs or fungicides alone, exhibited greater dollar spot control versus untreated plots. Overall, fungicide efficacy on dollar spot was comparable on plots treated with fungicide tank-mix programmes alone versus fungicides plus PGRs. Creeping bentgrass quality was consistently better in plots treated with fungicides plus PGRs versus fungicides alone. Dollar spot control and creeping bentgrass quality was improved, however, in plots treated with fungicides plus paclobutrazol versus fungicides alone, fungicides plus trinexapac-ethyl, or fungicides plus paclobutrazol plus trinexapac-ethyl. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：1032 / 1038
页数：7
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