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  Evaluation of Weed Control Methods for Use on Gilbert Island Pastures

K.V. McCully1, D. Ward2 and W. Brown3
(Partner: Sussex and Studholm Agricultural Society)

Abstract: A trial to evaluate Lontrel 360, MCPA amine 500, Roundup (wiper), and clipping for weed control and crop tolerance within a pasture was conducted. Visual ratings on weed control and grass injury were collected throughout the season. Botanical compositions were also determined following sampling at two different dates. Results indicated that Canada thistle was the most predominant weed and that all treatments provided significantly higher visual control than the untreated check. Roundup (wiper) (99%) and Lontrel (94%) were the two most effective treatments. Analysis of botanical composition data (% grass, % clover, % weeds) indicated that no significant differences between the treatments or untreated control existed. Trends however, indicated that Lontrel resulted in the highest percentage grass, and lowest percentage weeds within the collected samples. Clover was killed from the Lontrel treatment, however. Additional ratings and botanical compositions should be collected next season to evaluate long-term effects of the treatments.

1Potato and Horticulture Branch, NBDARD, Fredericton, NB E3B 5H1
2Land Resource Branch, NBDARD, Fredericton, NB E3B 5H1
3Sussex Regional Office, Southern Region, NBDARD, Sussex, NB

Agriculture, Aquaculture and Fisheries
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