A Diagnostic Guide to Problem Solving

The term “abiotic disorders” refers to a wide array of plant problems. We use the word “abiotic” to indicate that the symptom is not caused by a biological agent such as an insect, mite or pathogen. Abiotic disorders are associated with non-living causal factors such as weather, soils, chemicals, mechanical injuries, cultural practices and, in some predisposition within the plant itself.

Cooperative Extension Service
Michigan State University
Extension Bulletin e1425

N.A.
Issued June 1980 2 pages (Fil. 1) 

Archive copy of bulletin. Do not use for current recommendations. or current recommendations contact your local Extension Office.

Michigan State University
Extension Bulletin e1519
Ag Facts

L. S. Robertson, D. D. Warncke and B. D. Knezek, Department of Crop and Soil Sciences
Issued  July  1981  4 pages  (Fil. 1) 

Archive copy of bulletin. Do not use for current recommendations.  For current information contact your Michigan Extension offices.

MSU Extension Service
Michigan State University
Extension Bulletin e1668

Christine T. Stephens, Department of Botany and Plant Pathology; Bernard H. Zandstra, Department of Horticulture

Issued January 1983 4 pages (Fil. 1)

Archive copy of bulletin. Do not use for current recommendations. For current information contact your local Extension office. Michigan offices.

Cooperative Extension Service
Michigan State University
Extension Bulletin e1037

This publication discusses the care that must be exercised when using fertilizer B. 

L.S. Robertson, R.E. Lucas, D.R. Christenson, Crop and Soil Sciences
Issued August 1976 4 pages  (Fil. 1)

Archive copy of bulletin.  Do not use for current recommendations.For current recommendations contact your Michigan Extension Offices.

Cooperative Extension Service
Michigan State University
Extension Bulletin e1012

This publication dicusses the micronutrient zinc. 

L.S. Roberts and R.E. Lucas Extension Specialist in Crop and Soil Sciences
Issued August 1976 4 pages (Fil. 1)

Archive copy of bulletin. Do not use for current recommendations. For current recommendations contact your Michigan Extension Offices.

Cooperative Extension Service
Michigan State University
Extension Bulletin e996.

L.S. Robertson, M.L. Vitosh, and D.D. Warncke
Extension Specialist in Crop and Soil Sciences

This publication discusses the secondary element calcium.

Issued August 1976 (Fil. 1)

4 pages

Archive copy of bulletin. Do not use for current recommendations. For current recommendations contact your local Extension office. Michigan Offices.

Cooperative Extension Service
Michigan State University
Extension Bulletin e994

This publication discusses the secondary element magnesium.

L.S. Robertson, M.L. Vitosh, and D.D. Warncke, Crop and Soil Sciences
Issued August 1976 4 pages (Fil. 1)

Archive copy of bulletin. Do not use for current recommendations. For current recommendations contact your local Michigan Extension office.

Essential Secondary Elements: Sulfur

Cooperative Extension Service
Michigan State University
Extension Bulletin e997

This publication discusses the secondary element sulfur.

L.S. Robertson, M.L. Vitosh, and D.D. Warncke, Crop and Soil Sciences
Issued August 1976 (Fil. 1)

4 pages

Archive copy of bulletin. Do not use for current recommendations. For current recommendations contact your local Michigan Extension office.

Fruit Area of Expertise Team

Teams of Extension specialists, field staff and others around specific topics producing training, publications and research.

MSU Extension Service
Michigan State University
Extension Bulletin e1520
Ag Facts

L. S. Robertson, D. D. Warncke and B. D. Knezek, Department of Crop and Soil Sciences
Issued  July  1981  4 pages  (Fil. 1)

Archive copy of bulletin. Do not use for current recommendations.  For current information contact your Michigan Extension offices.

Micronutrient recommendations for potatoes. 1 page.

MSU Extension Service
Michigan State University
Extension Bulletin e1518
Ag Facts

L. S. Robertson, D. D. Warncke and B. D. Knezek, Department of Crop and Soil Sciences
Issued  July  1981  2 pages  (Fil. 1)

Archive copy of bulletin. Do not use for current recommendations.  For current information contact your Michigan Extension offices.

Teams of Extension specialists, field staff and others around specific topics producing training, publications and research.

A brief description of some of the problems that might lead to wilted plants.