Gardening - Hot Topics

Gardening - Hot Topics

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Problem of the Month: Late Blight

Late blight is a disease that most commonly affects potatoes, but can affect tomatoes when the weather is cool, rainy and humid.  Late blight was prevalent in Michigan home gardens last year.

If you grow tomatoes, carefully monitor your plants for early symptoms of this disease and be prepared to take action if necessary.

For more information:
Late Blight Plant Pathology Fact Sheet (Penn State)
Late Blight on Tomatoes (Cornell University)

Frequently Discussed Topics

Following are publications that answer the most frequently asked questions the Garden Hotline staff receive this time of the year. Please call or contact us with your questions at 248-858-0902.  See our hours.



Rose Black Spot


Spotted Wing Drosophila

Spray Schedule for Pest Control on Apples, Crabapples, Quince and Pears

Spray Schedule for Pest Control on Peaches, Nectarines, Apricots, Cherries and Plums

Spray Schedule for Pest Control on Brambles (Blackberries/Raspberries)

Spray Schedule for Pest Control on Strawberries

Spray Schedule for Pest Control on Blueberries

Spray Schedule for Pest Control on Grapes


Cicada Killer Wasp


Mosquitos of Michigan


Social Wasps

Solitary Wasps

Spiders - Biology and Control



Fertilizing Home Lawns to Preserve Water Quality

Hairy Chinch Bug

How to choose and when to apply grub control products for your lawn

Lawns in Shade

Mow High for Weed and Grub Control

Mowing Lawn Turf

Post-Emergence Crabgrass Control

Sod Webworm

Plants and Landscape

August Landscape Guide

Deer Resistant Plants for Homeowners

Fertilizer Basics for the Smart Gardener

Giant Hogweed

Powdery Mildew

Spring/Summer Houseplant Care

Soil Management

Don't Guess, Soil Test

Trees and Shrubs

Fall Webworm

Lecanium Scale

Magnolia Scale

Oak Wilt in Michigan

Scale Insects

Spruce Decline


Blossom End Rot of Tomato

Early Blight of Tomato

Late Blight of Tomatoes

Organic Vegetable Production

Septoria Leaf Spot of Tomato


Weed identification and control web site at MSU Turf Weeds

Seasonal Resource for Current Conditions and Plant/Pest Problems

An excellent resource for current conditions and plant/pest problems is the MSU Extension News web site, written by MSU faculty and MSU Extension staff.  These seasonal electronic articles offer Lawn & Garden pest management advice regarding a variety of topic areas such as Community Gardening, Composting & Recycling, Home Gardening, Landscaping, Pest Management, Turf, and Water Usage.  You can subscribe to various topics and have updates to their web site sent to you automatically.

Food donation fact sheet available from MSU Extension’s Michigan Fresh

Hungry people need good food – and gardeners can provide safe, nutritious food to those who might otherwise go without. Learn how community gardeners can donate extra produce to food pantries with Michigan State University Extension fact sheet “Fresh Produce Donation Guidelines for Gardeners.”  This fact sheet includes recommended ways to handle and prepare the produce, information about the Good Samaritan Food Donation Act, and more.  
Fact sheets – on topics from apples to winter squash – are also available on the Michigan Fresh website at


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