Browsing by Subject/Keyword: language:
Cedar Apple Rust: On Red Cedar and Hawthorn (3.19516)
Date: 1940sCreator: Watts, May Theilgaard
Type: Drawing
Description:Informational text about the fungal disease known as cedar apple rust and its effect on Red cedar and Hawthorn trees. Text also includes information regarding laws enacted to prevent damage to apple orchards.
Text as depicted, from top to bottom:
- ON RED CEDAR
- AFFECTED TISSUES EVENTUALLY DIE, LEAVING DEAD AREAS WHERE WOOD-DECAYING FUNGI MAY ENTER.
- ON HAWTHORN
- ACTIVE LEAF SURFACE IS SERIOUSLY REDUCED........
- IF INFECTION IS HEAVY EXTENSIVE DEFOLIATION MAY OCCUR......................
- SEVERAL STATES HAVE ENACTED LAWS REQUIRING THE CUTTING OF RED CEDARS TO PREVENT INJURY TO APPLE ORCHARDS.
Extent: 1 sheet
Cedar Apple Rust: Destroy, Inspect, and Spray (3.19517)
Date: 1940sCreator: Watts, May Theilgaard
Type: Drawing
Description:Informational text listing preventative measures to stop the spread of the fungal disease known as cedar apple rust. Text also includes information regarding steps taken at the Arboretum to protect Hawthorns.
Text as depicted, from top to bottom:
1. DESTROY EITHER ONE OF THE TWO HOSTS TO A DISTANCE OF 1 1/2 TO 2 MILES. (One pathologist collected spores in an airplane one-half mile off the ground.)
HERE AT THE ARBORETUM 3000 RED CEDARS WERE DESTROYED TO PROTECT THE HAWTHORNS.
2. INSPECT EACH RED CEDAR FROM GROUND TO TOP EVERY WINTER OR EARLY SPRING. CUT OFF AND BURN ALL CEDAR APPLES.............
3. SPRAY. FOR THE RECOMMENDED SPRAYS FOR BOTH CEDARS AND APPLES SEE CONTROL MEASURES BOOKLET IN THIS ROOM.
Extent: 1 sheet
Cedar Apple Rust: Late Summer To Fall (3.19520)
Date: 1940sCreator: Watts, May Theilgaard
Type: Drawing
Description:Panel 4 of 4 with illustrations and informational text about the fungal disease cedar apple rust cycle and its effect on Red cedar and Hawthorn trees. Focus of this panel is on the disease cycle from late summer to fall describing spore on leaves and wind carried spores. Drawings feature an infected Hawthorn leaf, a Juniper twig, and a Hawthorn tree.
Header: LATE SUMMER TO FALL
Drawings and text, clockwise from right:
- Hawthorn leaf with spores: ON UNDER-SIDE of LEAF WHITE TUBES DISCHARGE YELLOW SPORES
- yellow arrow: SPORES CARRIED BY WIND TO RED CEDAR
- Juniper twig
- HAW (left half image of a full-sized Hawthorn)
Extent: 1 sheet
Cedar Apple Rust: Early Summer (3.19521)
Date: 1940sCreator: Watts, May Theilgaard
Type: Drawing
Description:Panel 3 of 4 with illustrations and informational text about the fungal disease cedar apple rust cycle and its effect on Red cedar and Hawthorn trees. Focus of this panel is on the disease cycle in early summer, depicting spores on leaves. Drawings feature Hawthorn leaves, spores, and a Hawthorn tree.
Header: EARLY SUMMER
Drawings and text, clockwise from right:
- Hawthorn leaf: YOUNG LEAVES of HAWTHORNE
- Hawthorn leaf with spots: YELLOW SPOTS APPEAR ON LEAVES
- Hawthorn leaf with spots: SPOTS TURN ORANGE
- THORN (right half image of a full-sized Hawthorn)
Extent: 1 sheet
Forest Nature Trail Guide, page 9 illustrations and layout with preliminary sketches (3.24659)
Date: 1946Creator: Watts, May Theilgaard
Type: Drawing
Description:Sheet One: Original illustrations and layout for page 9, for The Morton Arboretum Forest Nature Trail Guide booklet. Key lines included.
Illustrated stumps with numbers indicate points of interest along trail as seen on trail map.
Tree stump #18: Garter snake
Includes an illustration of a coiled garter snake to the right.
Tree stump #19: Bracken fern
Identifying characteristics for leaves illustrated to the right.
Tree stump #20: Gravel pit
Three illustrations of a gravel pit labeled "1," "2," and "3" showing stages of vegetation regrowth over time.
Tree stump #21: Slime flux
Name of chronic bleeding from the side of an Elm tree. Identifying characteristics for Elm leaf illustrated to the right.
Sheet Two: Preliminary sketch of green-colored illustrations.
Extent: 2 sheets
The Morton Arboretum Quarterly V. 10 No. 04 (3.34470)
Date: December 21 1974 – March 20 1975Type: Serial
Description:
- Site Changes and Root Damage: Some Problems with Oaks (49-53)
- Diagnosing and Preventing Diebacks and Declines of Urban Trees: Lessons From Some Forest Counterparts (54-59)
- Redbud, Cercis canadensis: Pea Family (Leguminosae) (60-61)
- People & Projects/ Climatological Summary (62-63)
- Of the Infirmities of Trees, & c. (64)
Extent: 16 pages
The Morton Arboretum Quarterly V. 02 No. 01 (3.34508)
Date: March 21 – June 20 1966Type: Serial
Description:
- After Elms - What? (1-7)
- European Alder, Black Alder. Alnus glutinosa: Birch Family (Betulaceae) (8-9)
- An Imported Problem: Dutch Elm Disease, 1918 to 1966 (10-12)
- Christmas Bird Census, 1965 (13-15)
- Climatological Summary (14)
- Arboretum News and Notes (16)
Extent: 16 pages
1994/10/26: Virgil K. Howe to George Ware (3.37661)
Date: October 26 1994Type: Document
Description:Letter from Virgil K. Howe of Fort Hays State University to George Ware regarding newspaper articles about a Dutch Elm Resistant Tree he worked on and thanking him for his mentorship over the years.
Extent: 1 sheet
1996/03/22: Lorenzo Mittempergher to George Ware (3.39945)
Date: March 22 1996Creator: Mittempergher, Lorenzo
Type: Document
Description:A letter from Lorenzo Mittemphergher, an elm breeder from the Insituto di Patalogia e Zoologia Forestale e Agraria in Firenze, Italy. The letter requests Ulmus seed from trees in the Arboretum, and references an enclosed article he co-authored, "Elm Yellows A Disease To Be Taken Into Consideration When Breeding Elm For Disease Resistance" published in the 8th Congress of the Mediterranean Phytopathological Union, Agadir - Morocco, 1990. There are also handwritten notes on a notepad listing several varieties of Ulmus.
Extent: 4 sheets, 1 notepad
1995/09/21: George T. Weick to George Ware (3.44150)
Date: September 21 1995Creator: Weick, George T.
Type: Document
Description:Letter from George T. Weick to George Ware discussing two articles, one from The Chicago Tribune and the other from the Christian Science Monitor. Both articles discuss Dutch Elm Disease. A copy of the article from the Christian Science Monitor titled "America's Tree" is enclosed with the letter. George Weick also inquires about George Ware's trip to China.
Extent: 2 sheets
Undated: Karel [Jacobs] to George Ware (3.44621)
Creator: Jacobs, Karel
Type: Document
Description:Note from Karel [Jacobs] to George Ware asking for information about resistant elm availability so that she is better informed at the Plant Clinic.
Extent: 1 sheet
Notations and contact information (3.44623)
Type: Document
Description:Note written by or for George Ware containing contact information for Elaine Andre and information concerning a 25 year old chlorotic pin oak.
Extent: 1 sheet
1996/04/30: George H. Ware to Dr. Lorenzo Mittempergher (3.47655)
Date: April 30 1996Creator: Ware, George
Type: Document
Description:Letter from George H. Ware to Dr. Lorenzo Mittempergher of the Centro Di Studio Per La Patologia in Florence, Italy thanking him for his letter and information on elm yellows, discussing the merits and concerns of a variety of elm species, and hope that their cooperative endeavors will be productive and beneficial.
Extent: 1 sheet
1993/05/24: Jose Milan to Arborists (3.57367)
Date: May 24 1993Creator: Milan, Jose
Type: Document
Description:A memo and news release from Jose Milan, Marketing Manager for CIBA-GEIGY regarding the availability of Alamo, a systemic fungicide that helps to combat oak wilt and Dutch elm disease.
Extent: 2 sheets
1989/01/23: Zhang Qiwen to George Ware (3.63435)
Date: January 23 1989Creator: Qiwen, Zhang
Type: Document
Description:Letter from Zhang Qiwen to George Ware thanking him for the invitation to visit the Arboretum and discussing her research work at the University of Toronto.
Extent: 2 sheets