Effect of postemergence johnsongrass control on MCDV and MDMV incidence and severity in field corn
In the summers of 1989 and 1990, researchers in Va. and Md. began to observe lateseason reductions in com vigor in areas treated with nicosulfuron or primisulfuron for postemergence johnsongrass control. Symptoms observed included chlorosis, reddening of the leaves and shortening of the internodes....
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| Format: | Others |
| Language: | en |
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Virginia Tech
2014
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| Online Access: | http://hdl.handle.net/10919/39614 http://scholar.lib.vt.edu/theses/available/etd-10042006-143905/ |