G.L. Graham1, G.
Chiasson2 and É. Thériault3
Parter: Bleuets NB
Blueberries
Abstract: Lamb's-quarters (Chenopodium album L.) has unexpectedly begun
to be problematic within managed wild blueberry production. Innovative
herbicides for lamb's-quarters control were applied in the sprout year of a
commercial blueberry field in the Lord and Foy region of New Brunswick.
Imazamox and aminopyralid caused unacceptable crop injury at the application
rates and timings evaluated. Mesotrione, sulfentrazone, hexazinone and, to a
lesser extent, flumioxazin, gave control of lamb's-quarters when applied
pre-emergent to weed growth. Mesotrione and mesotrione plus fluazifop-p-butyl
both demonstrated high levels of weed control in both the sprout and crop years
when applied post-emergent. Mesotrione, sulfentrazone and, to a lesser extent,
flumioxazin should undergo further research to understand the weed control
spectrum in blueberries to ensure these products would be valuable in current
weed control practices.
1NB Department of Agriculture and Aquaculture, Crop Development Branch, P. O. Box 6000, Fredericton, NB E3B 5H1 2NB Department of Agriculture and Aquaculture, Regional Agri-Business Development, 1425 King Avenue Bathurst, New Brunswick E2A 1S7 3NB Department of Agriculture and Aquaculture, Regional Agri-Business Development, P. O. Box 3058, Tracadie-Sheila, NB, E1X 1G5
|