Crop diseases and pests : publication
Aflatoxin is a term used to refer to a group of extremely toxic chemicals produced by two molds. Visit our site to learn about Aflatoxins in Corn.
Missouri pesticide applicators, prepare for the Category 1A, Agricultural Plant Pest Control, certification test given by the Missouri Department of Agriculture with the help of this manual from University of Missouri Extension.
Learn how to identify and control Japanese beetles to protect fruits, vegetables, field crops, ornamentals, turfgrass roots, and wild plant species in this University of Missouri Extension guide.
Reviewed by Kevin RiceDepartment of Plant Sciences
Revised by Kevin RiceDepartment of Plant Sciences
Editor's noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
Revised by Kevin RiceDepartment of Plant Science
Allen Wrather
Division of Plant Sciences
Delta Center
Laura Sweets
Division of Plant Sciences
Cotton sales are important to the economies of many nations, including the United States. Sales can help balance trade with cotton-buying countries.
Editor's note
Allen WratherDivision of Plant SciencesDelta CenterLaura SweetsDivision of Plant Sciences
Cotton pest management scouting report (PDF)
Reviewed by Bradley WilsonDivision of Plant SciencesWhat are cotton seedling diseases and what causes them?
Facts at a glanceThis insect pest has many cultivated host plants (e.g., corn, cotton, grain sorghum).It feeds primarily on the fruit (e.g., corn, cotton) or stems (e.g., corn, grain sorghum) of its cultivated and wild host plants.Typically, two generations per fi
Revised by Kevin Rice
Division of Plant Sciences
Facts at a glanceHessian fly adults are small and mosquito-like in appearance.Annually, there are two generations (fall and spring); the fall generation is more important economically.Look for the larvae and puparia (called flaxseed) between the leaf sheath and st
Editor's noteThe following abstract describes a publication that is only available as a downloadable PDF.
Reviewed by Kaitlyn BissonnetteDivision of Plant SciencesAllen WratherDivision of Plant SciencesDelta Center, PortagevilleLaura SweetsDivision of Plant Sciences
Figure 1aTrue armyworm.
Learn the latest pest management recommendations for commercial tree fruit, small fruit, and grape producers in the Midwest in this guide.
Reviewed by Peng Tian
Assistant Professor, Plant Sciences
Reviewed by Manoj Chhetri
Department of Horticulture
George S. Smith and Maureen H. O'Day
Department of Entomology
William Reid
Kansas State University
David E. BakerDepartment of Agricultural EngineeringThe great variety of pesticides used in America's agricultural production system presents varying degrees of hazard. These products were made to alter life cycles of living pest organisms, and many of these products are dangerous to people if not…
Missouri commercial pesticide applicators, order your pesticide applicator training manuals here to enhance your training and study for certification exams. Stay up-to-date on environmentally sound uses of pesticides.
Editor's note
The following abstract describes a publication that is only available for purchase. This manual is currently being updated. If you are testing after January 1, 2025, please wait to purchase the revised version that will be available in the coming months.
Fred FishelDepartment of Agronomy
Learn about federal and Missouri pesticide rules, and see the steps to take to become a pesticide applicator and keep good records of when you use pesticides.
Pesticide poisoning is a commonly under-diagnosed illness. Visit our website to learn about pesticide poisoning symptoms and first aid.
Collecting plant disease samples
Downloadable form for people who need to take and ship samples to the MU Extension Plant Diagnostic Clinic.
Editor's note
The following abstract describes a publication that is only available for purchase.
Published by MU Extension in cooperation with the Environmental Protection Agency
Editor’s noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor’s noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor’s noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor’s noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor’s noteThe following abstract describes a publication that is only available as a downloadable PDF.
Blast, also called rotten neck, is one of the most destructive diseases of Missouri rice. Learn about rice blast control in this University of Missouri Extension guide.
Sheath blight is the most destructive disease Missouri rice growers face. Learn about sheath blight symptoms, causes and control; fungicide use; and scouting in this University of Missouri Extension guide.
Editor's note
The following abstract describes a publication that is only available for purchase.
Kaitlyn BissonnetteAssistant Extension ProfessorDivision of Plant Sciences
Facts at a glance
Adults (flies) become active at low temperatures (mid-40s F).
Adult females are highly attracted to fields with moist soils high in organic matter or decomposing residues (animal manure or plants).
The larvae or maggots burrow into the seed
Ralph E. MunsonDepartment of EntomologyJames A. SchafferDepartment of AgronomyEinar W. PalmDepartment of Plant Pathology
Facts at a glanceThe sorghum midge has several generations each year because of its short life cycle (14 to 16 days).Damaged seed heads are pinkish, appear blasted, and have undeveloped seeds.Begin scouting fields once sorghum starts to pollinate.Grain so
Facts at a glanceEconomic damage can occur during the whorl and tasseling stages of corn.Scouting should begin in June and continue through peak moth activity (July and August).Larval girdling damage (from late August until early October) can cause plants to lodge
Allen Wrather and Melissa MitchumDivision of Plant Sciences
Editor's noteThe following abstract describes a publication that is only available as a downloadable PDF.
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
Soybean gall midge is a newly described insect species that attacks and severely damages soybean. Learn how to scout for and identify this pest — currently established in parts of South Dakota, Minnesota, Iowa, Nebraska and Missouri — in this guide.
Facts at a glanceThere are two generations of bean leaf beetle per year in Missouri.Both larvae and adults are soybean pests.
Michael L. Boyd and Wayne C. BaileyState Extension Entomology Specialists
In Missouri, the green stink bug, Acrosternum hilare (Say), and brown stink bugs, Euschistus spp., commonly infest soybean fields. Learn how to identify them and the damage they cause, how to scout for them, and how to manage them in this guide.
Asian soybean rust is a serious foliage disease that has the potential to cause significant soybean yield losses. Anyone involved in soybean production needs to be familiar with the disease and its identification and management.
Tall fescue is Missouri's most widely used forage crop. Visit our site to learn about Tall Fescue Toxicosis.
Clyde E. Sorenson, formerly of the MU Delta CenterGene Stevens, Extension Professor, Agronomy
Fred FishelDepartment of AgronomyPaul AndreMissouri Department of Agriculture
Brad S. Freseburg
Division of Plant Sciences
Learn about the changes reflected in the 2022 update to Missouri's Private Applicator Reference Manual.
Brad FresenburgCoordinator of Pesticide ProgramsMelissa May
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
Editor's noteThis publication is intended as a downloadable PDF. If reprinting or copying, please complete the permissions form that can be found under guidelines to reprint or copy on the left side of this page. If sharing or posting, please link directly to this page.
J. Allen Wrather and Laura E. SweetsDepartment of Plant PathologyWarren K. Cork and Kenneth D. KephartDepartment of Agronomy