Rutgers Cooperative Extension
The announcement that the invasive pest Emerald Ash Borer (EAB) is present in NJ will lead to many discussions between professionals and concerned clients on what to do about their ash trees. EAB represents a broad threat – it attacks all true ash (Fraxinus) species. In the U.S., trees die within a few years without […]
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Many landscape & nursery managers consistently state that attempting to manage the black vine weevil insect (Otiorhynchus subcatus) as one of the most problematic pests they encounter. These leaf notching weevils feed on many kinds of ornamental plants including yews, rhododendrons, azaleas, laurels, leucothoe, forsythia, euonymus, hollies, viburnum, most deciduous and evergreen shrubs, ground covers […]
Continue reading...Late blight has been reported on potato on Long Island. This is the first report of late blight in the region to date. Potato and tomato growers should scout their fields on a regular, if not, daily basis and initiate their regular preventative fungicide programs if not already done so.
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Downy mildew sporulating on the bottom side of an infected collard leaf. Note the white spore masses.
Continue reading...Basil downy mildew has been reported in New Jersey. With current weather conditions all basil growers should scout on a daily basis and taking appropriate preventative measures. Cucurbit downy mildew has been reported on cucumber as far north as central North Carolina as of 6/20. To track cucurbit downy mildew in the US please visit […]
Continue reading...Cole Crops Downy mildew and Alterneria were confirmed on collard greens this past week. Current weather conditions are ideal for the development of both diseases on all cole crops as well as other crops. Symptoms of downy mildew on cole crops include the production of white spore masses only on the undersides of infected leaves. […]
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