June 4, 2010
This issue contains details on many items including: hawthorn leafminer, Ailanthus webworm, cottony maple scale, oak bullet gall, froghoppers, pine bark adelgid, spindle gall, pine false webworm, oak leafroller, downy leaf spot, chlorosis, and abiotic and bacterial leaf scorch.
Fungus of the week: Phellinus robiniae
Woody of the week: Tulip poplar (Liriodendron tulipifera)
- June 19,2009 Plant Health Care Report 20%
This issue contains details on many items including:Black vine weevil damageRose midgeWoolly larch adelgidAesculus leafminerPine false webwormRose rustIsland chlorosisSeptoria leaf spotField bindweedCurly dockDownload the report to pdf
- Plant Health Care Report June 17, 2011 (Issue 2011.09) 16%
- Chlorosis 12%
Chlorosis is a yellowing of normally green leaves due to a lack of chlorophyll. Many factors, singly or in combination, contribute to chlorosis. In northern Illinois, some of the most common causes among trees and shrubs include nutrient...