Trees reported to be susceptible to summer branch drop.
| Species most often reported in Britain (Rushforth 1979). |
| Quercus spp. |
| Populus spp. |
| Salix spp. |
| Ulmus procera |
| Castanea sativa |
| Fagus sylvatica |
| Fraxinus excelsior |
| Aesculus hippocastanum |
| Genera most often reported in California |
| Eucalyptus |
| Quercus |
| Ulmus |
| Pinus |
| Cedrus |
| Fraxinus |
| Platanus |
| Species also reported in California. |
| Ailanthus altissima |
| Erythrina caffra |
| Ficus microcarpa |
| Olea europaea |
| Grevillea robusta |
| Sequoiadendron giganteum |
| Sophora japonica |