Proceedings of the Sixty-first Annual Meeting of the Northeastern ...

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Table 1: Foliar herbicide treatments were applied to autumn olive (Elaeagnus
umbellata, ELGUM) on July 7, 2005. Ratings were taken September 1, 2005 and July
10, 2006, 8 and 50 weeks after treatment (WAT). Each value is the mean of five
replications. Four shrubs were not located during the rating conducted at 50 WAT.
Means for the 50 WAT evaluation followed by the same letter are not significantly
different according to Fisher's Protected LSD at p=0.05.
application ELGUM canopy reduction
treatment rate 8 WAT 50 WAT
kg ae/ha -----------------%-----------------
untreated --- 0 0 e
metsulfuron 0.042 51 45 cd
metsulfuron 0.042 35 23 de
dicamba + 0.28
diflufenzopyr 0.11
metsulfuron 0.084 100 100 a
triclopyr 2.5
metsulfuron 0.13 51 98 a
imazapyr 0.56
metsulfuron 0.13 79 93 ab
fosamine 12.1
metsulfuron 0.13 93 91 ab
picloram 0.56
metsulfuron 0.13 90 100 a
fosamine 12.1
imazapyr 0.56
imazapyr 1.1 54 100 a
glyphosate 3.4 27 14 e
triclopyr 3.4 100 100 a
fosamine 4.0 32 70 bc
imazapyr 0.07
Protected LSD (p=0.05) 26 ---
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