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Pests & Diseases
 Websites presented in alphabetical order Agriculture and Natural Resources (ANR): Free Publications 
 Over 300 publications on California pests, crops, tips for gardeners, and related information. From the Division of Agriculture and Natural Resources, University of California, Davis. http://anrcatalog.ucdavis.edu/FreePublications/ Topics: Agriculture, Gardening, Plants Last updated Feb 7, 2008 Anthracnose of Grape
Information about this "significant disease of grapes in rainy, humid, and warm regions of the United States." Includes symptoms, photos of diseased plants, and disease management recommendations. Provides links to related fact sheets. From Ohio State University Extension. Note: opens directly into a PDF document. http://ohioline.osu.edu/hyg-fact/3000/pdf/HYG_3208_08.pdf Topics: Agriculture, Gardening, Photograph Collections: Nature & Wildlife, Plants, Wine Last updated May 24, 2009 Australian Plague Locust Commission (APLC)
This Australian government agency provides an "entry point to information on the activities of the APLC and on locusts in Australia." Features a FAQ about locusts, descriptions of locust control operations, publications such as a locust and grasshopper identification guide, and related links. http://www.daffa.gov.au/animal-plant-health/locusts Topics: Agriculture, Gardening, Home & Housing, Insects & Arachnids, Plants, Regions of the World Last updated Jun 12, 2007 Beyond Pesticides
"Beyond Pesticides began in 1981 as the National Coalition Against the Misuse of Pesticides, a non-profit membership organization that was formed to serve as a national network committed to pesticide safety and the adoption of alternative pest management strategies." The site features fact sheets about pesticides and alternatives to pesticides, information about what to do in a pesticide emergency, news, and links for each state. http://www.beyondpesticides.org/ Topics: Gardening, Home & Housing, Plants Last updated Sep 4, 2003 Biological Control: A Guide to Natural Enemies in North America
"Photographs and descriptions of major biological control (or biocontrol) agents of major insect, disease, and weed pests in North America. ... Also a tutorial on the concept and practice of biological control and integrated pest management (IPM)." Browse four sections on natural enemies: parasitoids, predators, pathogens, and weed feeders. From the College of Agriculture and Life Sciences, Cornell University. http://www.nysaes.cornell.edu/ent/biocontrol/ Topics: Agriculture, Gardening, Home & Housing, Photograph Collections, Photograph Collections: Nature & Wildlife, Plants Last updated Sep 11, 2007 BIRC: Bio-Integral Resource Center
"BIRC is a nonprofit organization offering ... insight, experience, and leadership in the development and communication of least-toxic, sustainable, and environmentally sound Integrated Pest Management (IPM) methods." The site includes an "Online Organic Database" which provides citations to papers, a definition of IPM, information about IPM for lawns, and a list of BIRC publications. http://www.birc.org/ Topics: Gardening, Home & Housing, Plants, Pollutants & Toxic Substances Last updated Jun 10, 2004 Bug Review
This site presents information and photos on common household and garden bugs (such as aphids, earwigs, and carpenter ants), with details about habit, the damage they create, and the controls available for each bug. Searchable; browsable by insect name and insect location. Available in Spanish. From the University of Illinois Extension. http://urbanext.illinois.edu/bugreview/ Topics: Gardening, Home & Housing, Photograph Collections: Nature & Wildlife, Photograph Collections: Regional: United States, Plants Last updated Sep 14, 2009 Cabbage, Broccoli and Cauliflower
Facts sheets about growing cole crop plants (such as broccoli, brussels sprouts, cabbage, cauliflower, kale, collards, and kohlrabi) and about the insects and diseases that may harm them. Part of VegEdge, from the University of Minnesota Extension Service. http://www.vegedge.umn.edu/vegpest/colecrop/cclist.htm Topics: Fruits & Vegetables, Gardening, Plants Last updated Jul 11, 2005 California Oak Mortality Task Force (COMTF)
The purpose of the California Oak Mortality Task Force is to address "elevated levels of oak mortality in California resulting from Sudden Oak Death (SOD)." The site focuses on the symptoms, diagnosis, treatment, and prevention of sudden oak death, which is caused by a pathogen called Phytophthora ramorum. Online publications address best management practices and risk assessment. http://www.suddenoakdeath.org/ Topics: Gardening, Plants, Plants by Name Last updated Dec 6, 2005 Cocoa Integrated Pest Management (IPM)
Features information about diseases (such as black pod), insects (such as the cocoa pod borer), and weeds that affect the cocoa tree. Provides articles on pest management, a chronology of the cocoa industry, bibliographies, and links. From the Ohio Agricultural Research and Development Center at Ohio State University. http://www.oardc.ohio-state.edu/cocoa/ Topics: Agriculture, Crops, Gardening, Home & Housing, Plants Last updated Nov 9, 2004 Common Names of Plant Diseases
This site features a searchable and browsable database of plant diseases. Entries include lists of relevant bacterial, fungal, virus, and miscellaneous diseases, as well as parasitic nematodes. From the American Phytopathological Society, "a non-profit, professional, scientific organization dedicated to the study and control of plant diseases." http://www.apsnet.org/online/common/ Topics: Gardening, Plants Last updated Mar 31, 2005 Cotton Insects
Images and brief information about boll weevils, bollworms, cotton aphids, loopers, thrips, and spider mites. Shows damage to cotton plants. From the Clemson University Cooperative Extension Service. http://entweb.clemson.edu/cuentres/cesheets/cotton/ Topics: Gardening, Plants Last updated Jan 6, 2005 Cucurbit Disorders: A Guide to the Identification of Common Problems
Does your pumpkin have a problem? To find out what's noshing on your squash, click through the images on this pest management "online problem solver" for cucurbits (plants of the gourd family). Major topic areas include leaf, fruit, stem and seedling disorders, and insect pests. From the Texas Agricultural Extension Service. http://aggie-horticulture.tamu.edu/publications/cucurbitproblemsolver/ Topics: Agriculture, Crops, Fruits & Vegetables, Gardening, Holiday Foods, Beverages, and Recipes, Plants Last updated Sep 17, 2009 Desert Locust Information Service: Frequently Asked Questions (FAQs)
Questions and answers about the desert locust, which during plagues "has the potential to damage the livelihood of a tenth of the world's population." Discusses life cycle, migration patterns, eating habits, and control of the locust. Features recipes from locust-affected countries, including barbecued and grilled locusts. From the Food and Agriculture Organization (FAO) of the United Nations. http://www.fao.org/ag/locusts/en/info/info/faq/ Topics: Agriculture, Fish, Meat, & Dairy, Gardening, Insects & Arachnids, Plants Last updated Jan 2, 2006 Forestry Images: The Source for Forest Health, Natural Resources and Silviculture Images
A collection of over 4400 photographs of forest pests including insects, diseases, weeds, invasive organisms, and other damage agents. There are also pictures illustrating silvicultural practices (planting, thinning, harvesting, etc.) as well as photographs of plants, wildlife, people, places, and scenes. Scientific and common names, descriptions, and location where the photograph was take are included with most of the images. The copyrighted photographs may be freely downloaded but registration (free) is required for some higher resolution photos. http://www.forestryimages.org/ Topics: Agriculture, Environment, Gardening, Photograph Collections: Nature & Wildlife, Plants Last updated Jul 25, 2002 Getting Groundhogs Out of Gardens
This fact sheet suggests humane ways to keep groundhogs (also known as woodchucks or whistle-pigs) out of the garden and from burrows under a porch or building. It notes that "[t]rapping and relocating groundhogs may ... lead to starving young left behind. It is much more effective to simply exclude groundhogs from areas where they're not wanted." From the Humane Society of the United States. http://www.hsus.org/humane_living/living_in_harmony_with_animals/groundhogs_gardens.html Topics: Gardening, Mammals Last updated Jan 13, 2009 Glassy-winged Sharpshooter and Pierce's Disease
Information, links, and news stories (some in audio) about this agricultural pest (Homalodisca coagulata), which can spread diseases to grapevines, almond trees, alfalfa, citrus, and oleanders. Also available in Spanish. From the University of California, Department of Agriculture and Natural Resources. http://news.ucanr.org/mediakits/gwsskit/gwsskit.shtml Topics: Agriculture, Crops, Gardening, Plants, Wine Last updated Sep 23, 2004 Gypsy Moth in North America
Lots of information on one of North America's most devastating forest pests. This invasive insect prefers the leaves of the oak and aspen, but will munch on more than 300 shrub and tree species. Maintained at the USDA Forest Service Research Station in West Virginia. http://www.fs.fed.us/ne/morgantown/4557/gmoth/ Topics: Agriculture, Environment, Gardening, Insects & Arachnids, Plants Last updated Oct 4, 2004 Hortsense
Designed for home gardeners, this site features "fact sheets for managing plant problems with IPM or Integrated Pest Management." Topics include common cultural problems, diseases, insects and mites, herbicide damage, lawn and turf, ornamentals, small fruits, tree fruits, vegetables, and weeds. From Washington State University Cooperative Extension. http://pep.wsu.edu/hortsense/ Topics: Agriculture, Gardening, Home & Housing, Plants Last updated Jul 25, 2005 How to Manage Pests: Grape
"University of California's official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests" in grape crops. Features information about specific diseases, insects and mites, nematodes, and weeds. Includes photos, general information about pesticides and herbicides, and a list of research projects related to grapes. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/PMG/selectnewpest.grapes.html Topics: Agriculture, Crops, Gardening, Home & Housing, Photograph Collections: Nature & Wildlife, Plants, Wine Last updated Sep 5, 2004 How to Manage Pests: Identification: Natural Enemies Gallery
Descriptions and photographs of "natural enemy species commonly found on California farms and in landscapes." These natural enemies (including predators, parasites, and pathogens) "kill, decrease the reproductive potential or otherwise reduce the numbers" of insect and mite pests, and are "key components of integrated pest management programs." Browsable by common name, order and family, and scientific name. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/PMG/NE/ Topics: Plants Last updated Aug 3, 2006 Identification: Key to Aphids Commonly Found in Small Grains, Corn, and Sorghum in California
An illustrated, interactive guide for identifying "the aphid species that are most commonly found in small grains (wheat, rye, and barley), corn, and sorghum in California." Includes photographs of each aphid, and links to related information on damage and management. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/TOOLS/KEYAPHIDGRAIN/ Topics: Plants Last updated Aug 22, 2006 Insect Pheromones: Mastering Communication to Control Pests
This publication explores research to develop pest control methods based on pheromones, chemicals "secreted by an animal, often an insect, that influence the behavior or development of other members of the same species." Includes images, a timeline of the study of insect pheromones back to 1870, glossary, and links to related research. From Beyond Discovery, a publication series from the National Academy of Sciences. http://www.beyonddiscovery.org/content/view.article.asp?a=2702 Topics: Biology, Plants Last updated May 16, 2006 Insectclopedia
A directory of insect information and product sources, including a section where species are covered alphabetically, databases, insect control, research, identification, hobbies, and pests found in crops, forests, gardens, homes, and lawns. http://www.insectclopedia.com/ Topics: Gardening, Home & Housing, Insects & Arachnids, Plants Last updated Oct 16, 2005 Invasivespeciesinfo.gov
On this site "you can learn about the impacts of invasive species and the Federal government's response, as well as read select species profiles and find links to agencies and organizations dealing with invasive species issues." Also find laws, news, tips for managers, and the Invasive Species of the Month. Maintained by the National Agricultural Library. http://www.invasivespeciesinfo.gov/ Topics: Agriculture, Biology, Gardening, Plants Last updated Aug 31, 2005 Iowa State University Entomology Image Gallery
Images of many types of beetles, butterflies, moths, caterpillars, cicadas, leafhoppers, flies, mosquitoes, grasshoppers, crickets, lice, ticks, and true bugs. There are also images of plants, plant diseases, and plant damage. Images have links to related articles in the online edition of Integrated Crop Management , a research publication of the university's entomology department. http://www.ent.iastate.edu/imagegallery/ Topics: Biology, Gardening, Insects & Arachnids, Plants Last updated Aug 20, 2002 Key to Aphids Most Commonly Found in San Joaquin Valley Alfalfa and Cotton
A guide for identifying "aphid species that are most commonly found in alfalfa and cotton in California's San Joaquin Valley." Includes an illustration of basic aphid anatomy, and photographs. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/TOOLS/KEYAPHID/ Topics: Agriculture, Crops, Gardening, Home & Housing, Photograph Collections, Photograph Collections: Nature & Wildlife, Plants Last updated Aug 10, 2003 Key to Identifying Common Household Ants
An illustrated guide for identifying "the ant species that are most likely to be a nuisance around California homes and structures." Includes basic facts on each species, quick tips for identifying ants, and information on ant biology and life cycle. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/TOOLS/ANTKEY/ Topics: Animals, Gardening, Home & Housing, Insects & Arachnids, Photograph Collections: Nature & Wildlife, Plants Last updated Aug 10, 2003 National Pesticide Information Center (NPIC)
NPIC maintains a toll-free telephone service that provides pesticide information, and this searchable and browsable directory of "objective, science-based information about a wide variety of pesticide-related subjects." Includes links to resources on pesticide use and safety, toxicology and health data, laws and regulations, pest control, emergency resources, and other pesticide topics. From Oregon State University and the U.S. Environmental Protection Agency (EPA). http://npic.orst.edu/ Topics: Gardening, Home & Housing, Plants Last updated Jun 9, 2003 Northwest Coalition for Alternatives to Pesticides
This Eugene, Oregon, group "works to protect people and the environment [in the Pacific Northwest] by advancing healthy solutions to pest problems." Web site includes details about the group's programs, such as the Clean Water for Salmon Campaign, event listings, and articles, reports, and publications on topics such as pesticide-free solutions to nuisance insects and weeds. Past issues of the organization's Journal of Pesticide Reform are indexed here. http://www.pesticide.org/ Topics: Environment, Gardening, Home & Housing, Plants Last updated May 9, 2005 Observations and Comments on Oak and Tanoak Dieback and Mortality in California
A report addressing sudden oak death and related tree diseases which "have become more common in a number of California coastal counties within the past few years." Addresses symptoms, diagnosis, disease management practices, replanting, and more, and includes pictures of the disease and its manifestations. The citations for this report are largely paper-based but make excellent culling for research purposes. http://phytosphere.com/tanoakobservations/tanoak.html Topics: Gardening, Plants, Plants by Name Last updated Oct 18, 2002 An Online Guide to Plant Disease Control
"This site contains the alphabetical (A to Z) text sections of the ... Pacific Northwest Plant Disease Management Handbook, part of the OSU Extension Plant Pathology slide collection, as well as photographs. ... Additional articles from the handbook have been incorporated into the 'Pathogens and Pesticides' section." Includes material about chemical, cultural, and biological control measures for plants in Washington state, Oregon, and Idaho. Also includes a glossary. From Oregon State University (OSU) Extension. http://plant-disease.ippc.orst.edu Topics: Plants Last updated Mar 6, 2007 Organic Cotton Production
"This publication discusses specific insect management strategies for cutworm, cotton bollworm, tobacco budworm, pink bollworm, armyworm, loopers, thrips, fleahoppers, lygus bugs, aphids, whitefly, spider mite, and boll weevil. Seedling disease, soil disease, and foliar disease management are also discussed." Presents ideas about marketing organic cotton. From the National Sustainable Agriculture Information Service. http://www.attra.org/attra-pub/cotton.html Topics: Agriculture, Crops, Gardening, Home & Housing, Plants Last updated Nov 23, 2005 Pest Management and Identification
Searchable profiles of pests of structures, homes, people and pets; pests of plants (insect, mite, and mollusc); plant diseases; nematodes ("microscopic, eel-like roundworms"); and weeds and unwanted plants. Includes information on life cycle, damage, and management. Also contains information in Spanish. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/PMG/selectnewpest.home.html Topics: Gardening, Home & Housing, Plants Last updated Aug 15, 2003 Pink Snow Mold on Turfgrass
Explains pink snow, a phenomenon in which wild grass underlying snow is affected by the fungus Microdochium nivale, causing snow to have a "pinkish cast." Discusses treatment and fungicides, and includes pictures. From the Plant Disease Diagnostic Clinic at Cornell University. http://plantclinic.cornell.edu/FactSheets/pinksnowmold/pinksnowmold.htm Topics: Plants, Plants by Name, Water Last updated Jan 31, 2006 The Plant Pathology Internet Guidebook
A searchable, annotated, "subject oriented internet resource guide for plant pathology, applied entomology, and all related fields." Topics include: bacteriology, entomology, mycology, nematology, virology, weeds, and parasitic plants. There are also categories for organizations, companies, departments and institutes, journals and books, glossaries and dictionaries, meetings and events, and more. From the Institute for Plant Diseases, University of Bonn, Germany. http://www.pk.uni-bonn.de/ppigb/ Topics: Biology, Gardening, Plants Last updated Aug 29, 2002 Plant Pathology Photos
This site "offers images captured by a succession of four Cornell University science photographers over the past 100 years. The small galleries ... span a period of great advances in plant pathology -- the study of plant diseases -- and in the photographic methods which are so central to the discipline." Includes brief biographies of the photographers. http://www.plantpath.cornell.edu/plant_pathology/sceneda49.html Topics: Gardening, Photograph Collections, Photograph Collections: Nature & Wildlife, Photography, Plants, Technology Last updated Mar 29, 2007 Plant Protection and Quarantine (PPQ): Emergency and Domestic Programs
Background and updates about pest responses and emergencies in regions of the U.S. Some of the topics covered include fruit flies, Asian longhorned beetles, karnal bunt (a fungal disease of wheat and triticale), citrus greening (Huanglongbing or yellow dragon disease), citrus canker, and plum pox. Includes images, survey maps, reports, and other material on the pests. From the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS). http://www.aphis.usda.gov/plant_health/plant_pest_info/ Topics: Plants Last updated Jun 20, 2007 Radcliffe's IPM World Textbook
This site is devoted to the ongoing production of an online IPM (Integrated Pest Management) textbook. At present, 62 chapters are available in ten subject areas, ranging from "Biological Control: Theory and Application," to "Pesticides:Chemistries/Pesticide Resistance," to "IPM: Policy and Implementation." About 75 chapters are in preparation. http://ipmworld.umn.edu/ Topics: Gardening, Home & Housing, Plants Last updated Jul 25, 2002 Revival of "Elm Street, U.S.A." Begins One Tree at a Time
This 2005 article describes how Dutch elm disease killed thousands of elm trees during the mid-20th century and how "six disease-resistant elm saplings were ... [planted at the University of North Carolina at Chapel Hill]. The trees ... arrived on campus as part of the same shipment bound for Washington, D.C., to be planted on the long block of Pennsylvania Avenue." From the University of North Carolina at Chapel Hill University Gazette. http://gazette.unc.edu/archives/05apr27/file.3.html Topics: Plants Last updated May 16, 2007 Statewide Integrated Pest Management Program: Glossary
A browsable glossary of terms concerning pests and pest management. From the Statewide Integrated Pest Management Program (IPM), University of California, Davis. http://www.ipm.ucdavis.edu/PMG/glossary.html Topics: Gardening, Home & Housing, Plants Last updated Aug 23, 2003 USDA Crop Profiles
"It is the intent that profiles provide the complete production story for a commodity and a look at current research activities directed at finding replacement strategies" for potentially harmful pesticides. Profiles contain information on production, cultural practice, and treatments of insect pests and diseases. Also includes bibliographies. Searchable, and browsable by crop or U.S. region, state, or region. From the Regional Integrated Pest Management Centers, which is sponsored by the United States Department of Agriculture (USDA). http://www.ipmcenters.org/cropprofiles/ Topics: Agriculture, Gardening, Home & Housing, Plants Last updated Oct 9, 2004 Vegetable MD Online
Vegetable MD Online provides access to fact sheets produced by Cornell University's Department of Plant Pathology. Diseases of about two dozen vegetables and fruits are listed by crop. There is a photo gallery of diseased plants, news articles and disease alerts, a glossary of plant pathology terms, and links to vegetable IPM (integrated pest management) sites. http://vegetablemdonline.ppath.cornell.edu/ Topics: Crops, Gardening, Photograph Collections: Nature & Wildlife, Plants Last updated Apr 14, 2002 Washington State Pest Management Resource Service (WSPRS)
WSPRS "serves as a hub for research-based information about pest management practices, including both chemical and alternative control methodologies." The website features crop profiles and pest management strategic plans, resources for homeowners, and links to information about diseases and insect pests, weed control, pesticides, and organic food. Provides access to the group's monthly Agrichemical and Environmental News, the Pesticide Notification Network (registration and label changes), and pesticide label database. http://wsprs.wsu.edu/ Topics: Gardening, Home & Housing, Nutrition & Food Safety, Plants Last updated Jul 25, 2005 |
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