This page presents information on diseases, disorders and pests of plants and crops, including control of pathogens, insect pests and weeds.
Diseases, Pests and Weeds
Spotlights
National Invasive Species Information Center
USDA. National Agricultural Library.
Provides a gateway to information on invasive plants, animals, and microbes. Learn about impacts and government responses, read species profiles, and navigate links to agencies and organizations dealing with these issues.
APSnet - Common Names of Plant DiseasesAmerican Phytopathological Society.
Database of plant disease names and lists plant pathogens and their hosts.
Biological Control: A Guide to Natural Enemies in North AmericaCornell University.
Discusses the concept and practice of biocontrol. Includes photographs and descriptions of approximately 100 natural enemies of plant pest insects, diseases, and weeds.
National Agriculture Compliance Assistance Center
Environmental Protection Agency.
Offers information about environmental requirements that affect the agricultural community. Key topics include water, sustainability, pesticides, and health and safety.
HerbicidesUSDA. National Agricultural Library.
Searches for article citations in the NAL Catalog (AGRICOLA) on herbicides from January 2005 to the present. Or search for books from 2000 to the present.
Insect Pests of Plants
USDA. National Agricultural Library.
Searches for article citations in the NAL Catalog (AGRICOLA) on insect pests of plants from January 2005 to the present. Or search for books from 2000 to the present.
From Yellow Rain to Green WheatUSDA. Agricultural Research Service.
A report, summarizing twenty-five years of trichothecene biosynthesis research conducted at the USDA, Agricultural Research Service, Mycotoxin Laboratory in Peoria, IL. The lab became a center of the international community of scientists striving to reduce trichothecene contamination in human foods and animal feeds.
National Site for the USDA Regional IPM Centers Information SystemUSDA. National Institute of Food and Agriculture.
Provides information about commodities, pests and pest management practices, pesticide use, IPM expertise database, state and commodity crop profiles, crop timelines, and pest management strategic plans.
Nematode Infections of PlantsUSDA. National Agricultural Library.
Searches for article citations in the NAL Catalog (AGRICOLA) on plant nematodes from January 2005 to the present. Or search for books from 2000 to the present.
New Online Help for Managing WhitefliesUSDA. ARS News Service.
Reports on the web site Management Program for Whiteflies on Propagated Ornamentals With an Emphasis on the Q-biotype. which covers importance of crop hygiene, pre- and post-planting practices and insecticide recommendations. Also stressed is the need to control whiteflies early, before they spread to neighboring fields.
North Dakota Field Crop Insect Management Guide (PDF | 1.63 MB)
North Dakota State University. Department of Entomology.
Discusses insect pests of field crops, insecticides, biological control, storage bin treatments, and fumigation. Quick Reference Charts are available for insecticide by crop.
Plant HealthUnited States Department of Agriculture.
Offers a portal to USDA information on plant diseases, pest management, weed management, and plant health research.
Plant Viruses and Viral DiseasesUSDA. National Agricultural Library.
Searches for article citations in the NAL Catalog (AGRICOLA) on plant viruses and viral diseases from January 2005 to the present. Or search for books from 2000 to the present.
University Related Plant Disease and Soil Testing Services (PDF | 160KB)Purdue University. Department of Botany and Plant Pathology.; Gail Ruhl.
Arranged by state, lists and provides contact information for soil testing laboratories and plant disease diagnostic services available to homeowners and commercial growers through local land-grant universities and extension offices.
Vegetable MD Online
Cornell University. Department of Plant Pathology.
Provides access to the many Vegetable Disease Fact Sheets produced over the years by Media Services at Cornell. Includes color photos which are helpful for disease diagnosis.
Recent Advances in Wheat Head Scab Research in China
USDA. Agricultural Research Service.
Provides information on wheat head scab epidemiology, etiology, disease control and advances in breeding for resistance in China.
Weed Science Reference DeskIowa State University Extension and Department of Agronomy.
Gateway to herbicide evaluations, weed control guides for Iowa and other states, and university weed science web sites. Provides information from the product labels of major manufacturers' herbicides.
Weeds and Weed Control
USDA. National Agricultural Library.
Searches for article citations in the NAL Catalog (AGRICOLA) on weeds and weed control from January 2005 to the present. Or search for books and audiovisuals from 2000 to the present.