What are the symptoms of cherry brown spot shot hole disease?
Symptoms of cherry brown spot shot hole disease: This disease occurs on leaves, new shoots and fruit. But it mainly damages leaves, producing circular or nearly circular spots on both sides of the leaves, about 1 to 4 mm in diameter, with clear edges and slight concentric rings; the outer ring is sometimes purple or reddish brown, and the center is grayish white or brown with faint concentric rings. In the later stage, grayish brown mold-like material, namely the conidiomata, occasionally appears on both sides of the spots, more abundantly on the underside of the leaves. The spots often dry up and fall off, forming shot holes, and the holes at the edges of these spots are neat. Leaves with many shot holes drop early, and the spots on new shoots are purplish brown, with grayish brown mold-like material also produced on the spots.