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Journal Article

Wine Grape (Vitis vinifera L.) Response to Simulated Herbicide Drift

Kassim Al-Khatib, Robert Parker and E. Patrick Fuerst
Weed Technology
Vol. 7, No. 1 (Jan. - Mar., 1993), pp. 97-102
Stable URL: http://www.jstor.org/stable/3987967
Page Count: 6

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Topics: Herbicides, Simulations, Leaves, Plants, Weed control, Wheat, Plant growth, Growing seasons, Symptoms, Canes
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Wine Grape (Vitis vinifera L.) Response to Simulated Herbicide Drift
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Abstract

Chlorsulfuron, thifensulfuron, bromoxynil, 2,4-D, glyphosate, and a combination of 2,4-D plus glyphosate were applied on newly planted and established 'Lemberger' wine grape at 1/3, 1/10, 1/33, and 1/100 of the maximum labelled rate in wheat or fallow to simulate exposure to drifted herbicides. All herbicides produced symptoms on grape but the most severe symptoms were with 2,4-D and the least severe with bromoxynil. Newly planted grape was more sensitive to herbicides than established grape. Although established grape recovered from injury caused by all treatments except 2,4-D and the highest rate of chlorsulfuron and glyphosate, newly planted grape recovered only from lower rates of bromoxynil. All herbicides resulted in diagnostic symptoms, but other symptoms were very similar to those caused by other stresses.

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