It’s Not Too Late

The last couple of weeks in the Plant Diagnostic Laboratory brought a flurry of phone calls regarding bacterial leaf scorch. Folks are concerned about the disease and several samples have been submitted from locations in New Jersey and the New York metropolitan area.

Bacterial leaf scorch in swamp white oak. Note the yellow margin between healthy and scorched tissues. Photo: Sabrina Tirpak, Rutgers PDL

Bacterial leaf scorch in swamp white oak. Note the yellow margin between healthy and scorched tissues. Photo: Sabrina Tirpak, Rutgers PDL

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‘Tis the Season

Bacterial leaf scorch (BLS) season is officially upon us. Over the last 7 to- 10 days, I have been seeing increasing numbers of red oaks in central New Jersey exhibit the tell-tale symptoms of the disease.

Irregular leaf scorch due to Xylella infection. Photo: Richard Buckley, Rutgers PDL

Irregular leaf scorch due to Xylella infection. Photo: Richard Buckley, Rutgers PDL

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