Hackberry Gall Psyllid on the tip of a pencil Hackberry Gall Psyllid on the tip of a pencil Copyright © 2009 John Pearson Copyright © 2009 John Pearson Figure 2. Adult hackberry petiole gall psyllid Pachypsylla venusta (Osten-Sacken). Photograph by... Figure 2. Adult hackberry petiole gall psyllid, Pachypsylla venusta (Osten-Sacken). Photograph by... Copyright © 2008 Hannah Nendick-Mason Copyright © 2008 Hannah Nendick-Mason Figure 8. Sugarberry Celtis laevigata Willd. (Celtidaceae) is a host for the hackberry petiole... Figure 8. Sugarberry, Celtis laevigata Willd. (Celtidaceae), is a host for the hackberry petiole... Copyright © 2011 Thomas Wilson of Armistead Gardens in Baltimore City Copyright © 2011 Thomas Wilson of Armistead Gardens in Baltimore City Figure 7. Hackberry Celtis occidentalis L. (Celtidaceae) is a host for the hackberry petiole gall... Figure 7. Hackberry, Celtis occidentalis L. (Celtidaceae), is a host for the hackberry petiole gall... Figure 4. Petiole gall psyllid nymph Pachypsylla venusta (Osten-Sacken). Photograph by Jerry F.... Figure 4. Petiole gall psyllid nymph, Pachypsylla venusta (Osten-Sacken). Photograph by Jerry F.... Figure 3. Petiole gall psyllid nymph Pachypsylla venusta (Osten-Sacken) with gall showing... Figure 3. Petiole gall psyllid nymph, Pachypsylla venusta (Osten-Sacken), with gall showing... Figure 6. Apical view of abdomen of petiole gall psyllid Pachypsylla venusta (Osten-Sacken)... Figure 6. Apical view of abdomen of petiole gall psyllid, Pachypsylla venusta (Osten-Sacken),... Figure 5. Dorsal view of tip of abdomen of petiole gall psyllid Pachypsylla venusta (Osten-Sacken)... Figure 5. Dorsal view of tip of abdomen of petiole gall psyllid, Pachypsylla venusta (Osten-Sacken),... Credit: Nancy Moran The University of Arizona. The bright yellow structure inside this newly... Credit: Nancy Moran, The University of Arizona. The bright yellow structure inside this newly... Figure 1. Petiole gall on sugarberry Celtis laevigata . Photograph by Jerry F. Butler University... Figure 1. Petiole gall on sugarberry, Celtis laevigata . Photograph by Jerry F. Butler , University...
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