Diseases- Weeds- Insects & Other Problems-C89

Author(s) Patricia S. McManus, Daniel L. Mahr, Teryl R. Roper. Home gardens usually contain only a few apple trees, making it feasible to limit pe...

Author(s) Annie Deutsch, Christelle Guédot. Apple maggot, also commonly known as railway worm, is a significant pest of apples in commercial and b...

Author(s) P. S. McManus, Teryl R. Roper. Learn to recognize the symptoms of fire blight. Suggests ways to prevent and manage this serious disease...

Author(s) M. F. Heimann, W. R. Stevenson. Black walnut (Juglans nigra) and butternut (Juglans cinerea) trees produce a toxin called juglone capabl...

Author(s) Janet van Zoeren, Christelle Guédot. Codling moth is an insect pest of apple, pear, and walnut crops in Wisconsin. Larval feeding can re...

Author(s) Christelle Guédot, Janet van Zoeren. Since it was first detected in Wisconsin in 2010, spotted wing drosophila (SWD) has rapidly expande...

Author(s) M. F. Heimann, G. L. Worf Cedar-rust complex is caused by a fungus that requires two hosts—juniper plus apple, crabapple, hawthorn, or ...

Author(s) Christelle Guédot, Janet van Zoeren. In the summer of 2016, the brown marmorated stink bug (BMSB) was detected for the first time in agr...

Author(s) P. S. McManus, M. F. Heimann Sooty blotch and flyspeck are separate diseases that often occur together on apple and pear fruit during l...

Author(s) Annie Deutsch, Christelle Guédot. Plum curculio, a beetle native to the midwestern United States, is one of the most common and detrimen...

Author(s) C. F. Koval, S. W. Binnie. The eastern tent caterpillar is native to North America, and records of its existence go back as far as 1646....

Author(s) Midwest Fruit Workers Group. This publication is only available through Purdue Extension's Education Store. Free PDF Single copies from...

Author(s) T. R. Roper. Watercore of apple is a physiologic disorder. The fruit tissue abnormal condition is a response of some apple cultivars to...