Silk button gall
Neuroterus numismalis is a gall wasp that has two generations per year.
The agamic generation causes Silk Button Galls on the underside of Oak le...
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Neuroterus numismalis is a gall wasp that has two generations per year.
The agamic generation causes Silk Button Galls on the underside of Oak leaves. These are small, and thick, with a deep central depression. They can be extremely abundant.
The sexual generation causes circular Blister Galls on Oak leaves, visible on both side of the leaf; green at first then brown. The blister has radiating lines from the centre, and the exit hole is in either upper or lower surface.
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The agamic generation causes Silk Button Galls on the underside of Oak leaves. These are small, and thick, with a deep central depression. They can be extremely abundant.
The sexual generation causes circular Blister Galls on Oak leaves, visible on both side of the leaf; green at first then brown. The blister has radiating lines from the centre, and the exit hole is in either upper or lower surface.
Read less
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