Acer with die-back caused by Japanese maple scale infestations.
Close-up of an Acer branch with gloomy scale (dark circular raised) and Japanese maple scale (brownish is the underlying skin after waxy white has been wiped or worn away). Japanese maple scale are also the white kind of oyster shaped insect on the branch.
Close-up of an Acer trunk heavily infested with Japanese Maple scale.
Close-up of Japanese maple scale on a Cornus trunk. The brownish colored insects are the same scale, but where the white waxy covering has been worn or wiped away. All pictures were provided by: Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delaware
Photos of Septoria leaf spot, Cercospora leaf spot, fairy rings, and stink horns have all been posted previously. Please use the search function to locate these images.
Pictures of brown marmorated stink bugs have been posted previously. Please use the search function to locate these images.
To the left is a picture of Giant Puff balls. Photo provided by Joseph LaForest, University of Georgia, Bugwood.org. Pictures of foliar nematodes have already been posted to the site. Please use the search function to locate pictures of foliar nematodes, leaf spots, or mushrooms.
Photos of western conifer seed bug have already been posted to the site. Please use the search function to find these images.