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| Web URL(s): | http://archive.lib.msu.edu/tic/mitgc/article/1989120.pdf
Last checked: 02/27/2009
Requires: PDF Reader |
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| Publication Type:
| Proceedings |
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| Author(s): | Watschke, T. L. |
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| Author Affiliation: | Dept. of Agronomy, Pennsylvania State University, University Park, PA |
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| Title: | Broadleaf weed control--what's new |
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| Meeting Info.: | East Lansing, MI: January 16-18, 1989 |
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| Source: | Proceedings of the 59th Annual Michigan Turfgrass Conference. Vol. 18, 1989, p. 120-122. |
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| Publishing Information: | East Lansing, MI: Michigan State University |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Broadleaf weed control; Herbicide combinations; Weed control
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| Abstract/Contents: | Successful weed control programs are those that integrate the cultural approaches (many were developed before herbicides) with the extraordinarily powerful chemical resources that are currently available. The turfgrass manager should create environmental conditions that favor the desired plant species over all others. Weeds often arise when grasses were lost to other causes: diseases, insects, nematodes, etc. Conditions that favor weeds are: compaction, poor drainage, pH effects, poor soil structure, shade, and others. Cultural practices that favor weeds are: improper mower height, irrigation mismanagement, inappropriate fertilizer rates and timings, poor disease and insect control, poorly timed cultivation, and misapplication of pesticides, fertilizers, and lime. To decrease broadleaf weeds such as dandelions, increase the competitiveness of grasses. Research has shown that increased nitrogen fertility reduced broadleaf weeds. As much as 70% of the effect of preemergent herbicide programs can be due to properly timed nitrogen fertilization. Most summer annual broadleaf weeds germinate in the early to mid-summer, and die before the first frost. Therefore, establish cool-season grasses in the fall so that grass is thick before early summer. Control any summer diseases or insect problems that could thin turf. Most broadleaf weeds can be controlled by applications of post-emergence herbicides, when the weeds are seedlings, and if the competition from grass is severe, or if the weeds are not yet mature, after 3 or 4 mowings. A new herbicide Isoxaben (Gallery) has shown promise for control of winter annual broadleaf weeds while they are still seedlings. The table lists 9 herbicide treatments for selective broadleaf weed control in cool season turfgrasses, and comments about their uses. |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L. 1989. Broadleaf weed control--what's new. p. 120-122. In Proceedings of the 59th Annual Michigan Turfgrass Conference. East Lansing, MI: January 16-18, 1989. East Lansing, MI: Michigan State University. |
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| Web URL(s):
http://archive.lib.msu.edu/tic/mitgc/article/1989120.pdf
Last checked: 02/27/2009
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 M47 |
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