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WeedsArizona Veg IPM: foxglove aphid, lettuce dieback, seed crop weed controlArizona Veg IPM: foxglove aphid, lettuce dieback, seed crop weed control
The foxglove aphid has been found in celery in Arizona’s Yuma Valley and in untreated lettuce at the Yuma Agricultural Center.Initial symptoms of lettuce dieback include extensive yellowing of the outermost leaves with the younger inner leaves usually remaining dark green in color.Few soil active herbicides are effective long enough to control weeds in vegetable seed crops.
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