University of Minnesota Extension
www.extension.umn.edu
612-624-1222
Go to the U of M Extension home page
Menu
Agriculture
Crops
Agricultural Drainage
Agricultural Irrigation
Climate & Weather
Commodity Crops
Forages
Honey Bees
Institute for Agricultural Professionals
Nutrient Management
Pesticide Safety
Small Farms
Soil Management and Health
Weed Management
Livestock
Beef
Dairy
Horse
Manure and Environmental Quality
Meat Science
Poultry
Small Farms
Swine
Agricultural Business Management
Agricultural Business Management
Farmer-Lender Mediation
Small Farms
Commercial Horticulture
Commercial Fruit and Vegetable Production
Plant & Nursery Health
Turfgrass Management
Regional Sustainable Development Partnerships
Community
Community Economics
Business Retention & Expansion
Understanding Economic Change
Retail Analysis & Development
Leadership & Civic Engagement
Civic Engagement
Leadership
Research
Research and evaluation publications
Brain gain in rural Minnesota
Tourism
Community Tourism Development
Customer Service Education
Festival & Event Management
Research Services
Regional Sustainable Development Partnerships
Environment
Forestry
Agroforestry
Trees & Woodlands
Fish, Wildlife, and Conservation Education
Citizen Science
Habitats, Fish, and Wildlife
Conservation Education
Housing
Housing Technology
Water Resources
Conservation
Education For Professionals
Property Owners
Recreation
Climate and Weather
WeatherTalk
Climate Education
Regional Sustainable Development Partnerships
Family
Family Resiliency
Parents Forever™
School Success
Families with Teens
Supporting Military Families
Financial Capability
Disaster Recovery
Signature Efforts
Children, Youth & Family Consortium
Health and Food
Live Healthy, Live Well
Health and Nutrition
Farm to School
Food Safety
Connect and Learn
About Family Development
Family Education Network
Family Development Online Courses
Food
Health and Nutrition
Food Safety
Farm to School
Community and Local Food Resources
Garden
Horticulture
Yard & Garden
Master Gardener
Farm to School
Insects
Commercial growers
Commercial Fruit and Vegetable Production
Turfgrass Management
Honey Bees
Plant and Nursery Health
Pesticide Safety
Youth
About
News
Give
Training & Events
Research
Minnesota 4-H
YD Intranet
About
About Extension
Extension leadership
Advisory committees
Offices: County, regional, campus
Staff Directory
Partners
Global Initiatives
Donate
Employment/jobs
Extension Highlights
Contact
Garden
Garden navigation
Garden home
Ask a question
Diagnose a problem
Master Gardener
Insects
Commercial horticulture
Extension
>
Garden
>
Diagnose a problem
>
What's wrong with my plant?
>
Deciduous
> Hawthorn
Choose a Symptom
Leaves
Dots, spots or blotches on leaves
Leaves or parts of leaves missing
Leaves discolored and wilted
Trunk/branches
Holes in trunk or branches
Discolored or cracked area of bark
Dead twigs or branches
Bark chewed or removed
Fruit/flowers
Fruit deformed or with unusual growths
Discolored flowers
Don't see what you're looking for?
Contact:
Ask a gardening question
Home
Extension in your community
Contact
Staff intranet
Report Web Disability-Related Issue
Privacy
