WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Wednesday, January 24, 2018

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715. Beer, E. and R. Heitefuss. 1981. Determination of economic thresholds and economic injury levels for monocotyle and dicotyle weeds in winter wheat and winter barley. II.. Zeitschrift fur Pflanzenkran. und Planzenschultz, 88(6):321-336.
The economic threshold for a mixed population of Alopecurus myosuroides and dicotyledonous weeds in winter wheat at the control datein spring will be 9.7% weed coverage. The calculated thresholds represent no fixed values.

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