We got a request from Tony DiVittorio with APHIS for images of several diseases affecting bonsai plants. The list is a little lengthy, but any help you can give would be greatly appreciated. You can contribute images through our online image upload form. If you upload the images under the batch name "Bonsai Diseses" I'll make sure they get to where they need to be.
Since the list is a little long so I've included it at the link below.
Bonsai_Disease_Image_Recruiting List
The short version would be that any diseases on the following hosts would be useful:
- Bougainvellia spp.
- Buxus sinica
- Carpinus spp.
- Celtis sinensis
- Corylopsis spicata
- Ginkgo biloba
- Lagerstromia indica
- Magnolia kobus
- Pinus densiflora
- Pinus thunbergii
- Podocarpus macropyllus
- Syzygium buxiflolium