Galling,
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Yes it does (and not only the hybrid), in fact three species of the aphid genus Pemphigus occur on the petioles of P. nigra and its hybrids’
October 15, 2025 at 1:17 AM
Yes it does (and not only the hybrid), in fact three species of the aphid genus Pemphigus occur on the petioles of P. nigra and its hybrids’
I think these are the galls caused by the midge Rabdophaga salicis. Happy to be corrected.
September 5, 2025 at 5:50 PM
I think these are the galls caused by the midge Rabdophaga salicis. Happy to be corrected.
These are knopper galls caused by the cynipid wasp Andricus quercuscalicis f. agamic.
July 21, 2025 at 3:47 PM
These are knopper galls caused by the cynipid wasp Andricus quercuscalicis f. agamic.