Like we observed in Raleigh, we found that impervious surface was a robust predictor of tree condition, and that one set of thresholds could be used for red maples across the Southeast.
We are not the only scientists using cities as surrogates for climate change. However, this line of research is in its infancy. We conducted a literature review, led by postdoc Nora Lahr, to compile all the research we could find in which cities were used to predict the effects of climate change.
White peach scale (Pseudaulacaspis pentagona) is an armored scale common on many landscape plants and fruit trees. It has a wide host range including over a hundred plant genera such as Buddleia, Camellia, Clematis, Cornus, [...]
This is a guest post from our former student (now postdoc at Harvard) Emily Meineke. Through years of studying urban trees and the insects that eat them, we, the Frank lab, have discovered that warming [...]
A couple years ago I began warning about a new pest that was spreading throughout crape myrtle country. Now, the crape myrtle bark scale has arrived. From the severity of the infestation it looks like [...]
This is a guest post by PhD student Emily Meineke Coccophagus lycimnia freshly emerged from a gloomy scale. Photo: Emily Meineke If I’ve learned anything during my graduate career, it’s how to count scale [...]
Female (gray) and male (white) euonymus scales and chlorotic yellow spots on leaves. Photo: SD Frank It seems like everything is labeled 'next generation' or 'second generation' to imply a better, more sophisticated [...]
This week I found cottony camellia scale ovisacs on hollies in my yard and on campus. Cottony camellia scale, Pulvinaria floccifera, is related to other cottony scales such as cottony maple leaf scale, Pulvinaria acericola, [...]
Adult gloomy scale. Photo: SD Frank Gloomy scale, Melanaspis tenebricosa, is an armored scale that feeds on maples and other tree species. It becomes very abundant on red maples on streets and in [...]
Two larvae on willow oak trunk. Photo: SD Frank Yesterday on campus willow oak trees were covered in millions of what looked like mealybugs. But they were faster than mealybugs and constantly moving [...]