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DocumentUndated: Karel [Jacobs] to George Ware

Jacobs, Karel

ArticleA new member of the clover proliferation phytoplasma group (16SrVI) associated with elm yellows in Illinois

2003

Jacobs, Karel, Miller, Fredric D.

ArticleLong-Term Changes in an Oak Forest's Woody Understory and Herb Layer with Repeated Burning

2007

Bowles, Marlin L., Jacobs, Karel, Mengler, Jeff

ArticleControl of apple scab and cytospora canker with Paclobutrazol

2012

Watson, Gary W., Jacobs, Karel

ArticleTwo decades of low-severity prescribed fire increases soil nutrient availability in a Midwestern, USA oak (Quercus) forest

2012

Scharenbroch, Bryant C., Jacobs, Karel, Bowles, Marlin L.

ArticleThe effects of prescribed burning on soil and litter invertebrate diversity and abundance in an Illinois oak woodland

2015

Jacobs, Karel, Scharenbroch, Bryant C.

ArticleVariation in field susceptibility of native and exotic ash species to anthracnose

2000

Jacobs, Karel, Danielson, Donna

ArticleInhibition of fungal pathogens of woody plants by the plant growth regulator paclobutrazol

2000

Jacobs, Karel

ArticleThe effect of Biobarrier on mycorrhizae in oak and sweetgum

2000

Jacobs, Karel

ArticleDutch Elm Disease in the Chicago Area 1970-1996

1999

Jacobs, Karel, Danielson, Donna

ArticleBotryosphaeria dothidea breaks endodormancy and reduces cold hardiness in Cercis canadensis

1999

Jacobs, Karel, Shirazi, Abbas

ArticlePlant Health is Rooted in Prevention

1998

Jacobs, Karel

ArticleCurrent DED outbreaks are caused by the same old fungi, but one has a new name

1998

Jacobs, Karel

ArticleHow much did the severe outbreak of scab on crabapple in 1995 influence scab levels in 1996?

1998

Jacobs, Karel

ArticleComparison of cultural and morphological characters and ITS sequences in anamorphs of Botryosphaeria and related taxa

1998

Jacobs, Karel

ArticleThe effect of flooding and Phytophthora root rot on ornamental cherry

1996

Jacobs, Karel

ArticleDifferential resistance to Entomosporium leafspot disease and hydrogen cyanide potential in photinia

1996

Jacobs, Karel, Dirr, Michael

ArticleHigh and low performing crabapples during abnormally high desease pressure

1996

Jacobs, Karel

ArticleU.S. National Arboretum is working toward sustainable production of pathogen free compost and mulch

1995

Jacobs, Karel

ArticleScreening three Cercis species for resistance to Verticillium Wilt

1994

Jacobs, Karel

ArticleThe identification of Armillaria species in California

1994

Jacobs, Karel

ArticleFirst report of Phytophthora cactorum causing root and collar rot of apple in NE Spain

1994

Jacobs, Karel

ArticleThe effect of water stress on infection and canker development of Botryosphaeria stevensii, Hypoxylon mediterraneum, and Coryneum sp on cork oak.

1993

Jacobs, Karel

ArticleThe effect of low oxygen stress on disease development of Phytophthora cinnamomi in Quercus suber roots

1992

Jacobs, Karel

ArticleConidial nuclei in three species of Diatrypaceae and Diaporthe vaccinii

1988

Jacobs, Karel

ArticleEvolutionary aspects of ascospore and conidium ontogeny in Scoleconectria cucurbitula

1988

Jacobs, Karel

BookDiseases of Woody Ornamentals in Nurseries

2001

Jacobs, Karel

ArticleMycorrhizal Fungi and Cold-assisted Symbiotic Germination of the Federally Threatened Eastern Prairie Fringed Orchid, Platanthera leucophaea (Nuttall) Lindley

2000

Jacobs, Karel, Bowles, Marlin L., Zettler, Lawrence W.

ArticleRooting Responses of Three Oak Species to Low Oxygen Stress

1997

Jacobs, Karel

ArticleThe Effect of Low Oxygen Stress on Phytophthora cinnamomi Infection and Disease of Cork Oak Roots

1997

Jacobs, Karel

ArticleDifferential Resistance to Botryosphaeria ribis Among Cercis Taxa

2002

Jacobs, Karel

ArticleSoil Aeration and Tree Health: Correlating Soil Oxygen Measurements With the Decline of Established Oaks

1991

Jacobs, Karel

SerialPlant Health Care Report: April 21-April 26, 1997

1997

Danielson, Donna, Jacobs, Karel

SerialPlant Health Care Report: April 27-May 2, 1997

1997

Danielson, Donna, Jacobs, Karel

SerialPlant Health Care Report: May 3-May 9, 1997

1997

Danielson, Donna, Jacobs, Karel

SerialPlant Health Care Report: May 10-May 16, 1997

1997

Danielson, Donna, Jacobs, Karel

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