The Morton Arb

Articles tagged Apple Scab

• Apple Scab Resistance - Pursuing a Moving Target

  | Category: Insects & Diseases | Tags: Apple Scab
  Apple Scab Resistance—Pursuing a Moving Target By Susan J. Wiegrefe, Ph. D.Morton Arboretum Tree Breeder It's not just your imagination—apples and crabapples have been infected with apple scab more than usual in the recent years. The fungal...

• May 29, 2009 Plant Health Care Report

  | Category: PHC Reports Archive | Tags: four-lined plant bug, boxwod psyllid, ash flower gall, bristly roseslug sawfly, imported willow leaf beetle, Apple Scab, peach leaf curl, oak leaf blister, sycamore anthracnose, frog-eye leaf spot, cedar-apple rust, downy leaf spot
  This report contains four-lined plant bug, boxwod psyllid, ash flower gall, bristly roseslug sawfly, imported willow leaf beetle, apple scab, peach leaf curl, oak leaf blister, sycamore anthracnose, frog-eye leaf spot, cedar-apple rust, and downy...

• Apple Scab

  | Category: Insects & Diseases | Tags: Apple Scab
  Apple scab is one of the more serious diseases of ornamental crabapples. It is caused by the fungus Venturia inaequalis. Apple scab mainly affects members of the rose family, including nearly all commercial cultivars of apple (Malus spp.), crabapple...

• May 1, 2009 Plant Health Care Report

  | Category: PHC Reports Archive | Tags: Caterpillars, White clover, Arborvitae leafminer, Dandelion, seasonal needle drop, golden canker, Cryptodiaporthe canker, Oystershell scale, Eastern tent caterpillar, European pine sawfly, Apple Scab, sawfly larvae
  This issue contains details on many items including: Caterpillars and sawfly larvae Eastern tent caterpillar European pine sawfly Arborvitae leafminer Oystershell scale Apple scab Cryptodiaporthe canker (golden canker) Seasonal needle drop...

• May 22, 2009 Plant Health Care Report

  | Category: PHC Reports Archive | Tags: Aphids, Honey Locust Plant Bug, Azalea sawfly, Cankerworm, Euonymus scale, Pine needle scale, Slugs, Columbine leafminer, Oak apple gall, Maple bladder gall, Leafroller on hawthorn, Eriophyid mite gall on prunus, Fire Blight, Rose rosette, Maple anthracnose, Oak anthracnose, Hosta virus X, Crown rust on buckthorn, Garlic mustard, Bull thistle, Apple Scab
  This issue contains details on many items including:Aphids Honey locust plant bug Azalea sawfly Cankerworm Euonymus scalePine needle scaleSlugsColumbine leafminerOak apple gallMaple bladder gallEriophyid mite gall on prunusFire blightRose...

• May 28, 2010

  | Category: PHC Reports Archive | Tags: Cornus alternifolia, Pagoda dogwood, Xylaria polymorpha, frogeye leafspot, Apple Scab, sycamore anthracnose, spiny witch-hazel aphid on river birch, bristly rose slug sawfly, holly leafminer European alder leafminer, vibernum crown borer, Azalea sawfly, Linden looper
  This issue contains details on many items including: Linden looper, azalea sawfly, vibernum crown borer, holly leafminer European alder leafminer, bristly rose slug sawfly, spiny witch-hazel aphid on river birch, sycamore anthracnose, apple scab,...

• Plant Health Care Report, May 20, 2011 (Issue 2011.05)

  | Category: PHC Reports Archive | Tags: weather, Aphids, Apiognomonia veneta, sycamore anthracnose, Venturia inaequalis, Apple Scab, peach leaf curl, Taphrina deformans, Dibotryon morbosum, Rose, Black Knot, Chicago, Illinois, The Morton Arboretum
  May 20,...

• Plant Health Care Report June 8, 2012

  | Category: Plant Health Care Reports | Tags: poison hemlock, maple petiole borer, pipevine swallowtail, Apple Scab, Columbine leafminer, galls, Guignardia leaf blotch, leafhoppers, Lecanium scale, measles on peony, witches broom of hackberry
  June 8,...

• Plant Health Care Report May 17, 2013

  | Category: Plant Health Care Reports | Tags: Wooly alder aphid, vibernum crown borer, rust on buckthorn, European elm flea weevil, elm leaf miner, Elm bark beetle, Eastern tent caterpillar, Cankerworms, Apple Scab, brown marmorated stink bug
    This issue contains information on Viburnum crown borer Brown marmorated stink bug Wooly alder aphid Eastern tent caterpillar Cankerworm Elm bark beetle Elm leafminer European elm flea weevil Apple scab Rust of...