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Horticulture and Home Pest News
Horticulture & Home Pest News is filled with articles on current horticulture, plant care, pest management, and common household pests written by Iowa State University Extension specialists in the Departments of Entomology, Horticulture and Plant Pathology.

Plant Disease Clinic Update - June 13, 2007

This article was published originally on 6/13/2007

Samples with the following problems have been seen in the Clinic lately: Angular leaf spot on zucchiniApple scab on crabapple (see this week's article)Environmental stress on maple and spruce (many samples)Environmental tattering on oak and mapleHickory petiole gallIron chlorosis on pin oakLeafminers on dogwoodLeaf spot on turfgrassMaple bladder gallPear leaf blister mitePhomopsis tip blight on cedar Environmental stress on spruce, causing browning of the newest growth.  Similar symptoms have been reported from throughout the state, often concentrated on the south and west sides of the tree.Environmental stress on spruce, causing browning of the newest growth. Similar symptoms have been reported from throughout the state, often concentrated on the south and west sides of the tree.

Year of Publication: 
2007
Issue: 
IC-497(14) -- June 13, 2007