Spring Garden Tips
Preventing & Overcoming Disease Problems

Keep your plants looking good and be kind to the environment despite the risk of disease problems.

JavaScript is disabled!
To display this content, you need a JavaScript capable browser.

Prevent problems by matching the plants to the growing conditions, providing proper care and giving them plenty of room to grow. And select the most disease resistant varieties whenever possible.

preventing plant diseaseConsider using a drip irrigation system to apply the water directly to the soil when needed. You will save water and reduce the risk of disease.

Mulch the soil around your plants. It helps to keep soil borne disease organisms in the soil and off the plants.

Remove and discard – do not compost - diseased leaves and stems as soon as they are discovered. This is often enough to control or at least slow the spread of disease.

Remove weeds in and around the garden. Many of these are host plants for harmful diseases that can spread to your plants.

A bit more information: Contact your local extension service or professional if you believe a disease problem warrants control. Start with a diagnosis, determine if control measures are needed and feasible, and what course of action should be followed. Always look for the most eco-friendly options like plant oils, Cornell baking soda mix, Neem, or Bacillus subtilis. Make sure the product is labeled for use on the disease and plant you are treating.

 

Related Garden Moments for Radio

A Beautiful Garden Starts with a Soil Test

Listen to Garden Moment...

Arbor Day Celebrations

Give a tree a hug and celebrate Arbor Day on the last Friday in April.

Listen to Arbor Day Celebrations...

Blossom End Rot on Tomatoes

It's finally here! Your first red tomato. You reach in, twist it off the vine and have a look. And there it is - a big black spot on the bottom of the tomato.

Listen to Spots on Tomatoes...

Budget-wise and Eco-friendly Seed Starting

Don’t let a tight budget stop you from starting seeds indoors. Get creative and involve the whole family in the process.

Listen to Eco-friendly Seed Starting...

Caring for Bare Root Plants

You decided to save money or perhaps try something new and ordered bare root plants from a catalog or through the internet. Now you are wondering what to do with them once they arrive.

Listen to Caring for Plants...

Celebrate Arbor Day

Celebrate Arbor Day by planting new trees or caring for your established ones in your landscape and community.

Listen to Celebrate Arbor Day...

Cleaner Air Mowing

The grass is up and growing and the roar of lawn mowers can be heard throughout the neighborhood. Minimize the negative impact of your gas mower on the environment with a few easy tricks.

Listen to Cleaner Air Mowing...

Cleaning and Storing Plant Pots

Piles of plastic pots fill the sheds and garages of gardeners across the country. Don’t throw these in the trash. Rather look for ways to reduce, reuse, and recycle plant pots.

Listen to Cleaning and Storing Plant Pots...

Cleaning Garden Tools

Burn off a few calories and get ready for spring with a trip to the garden shed or garage.

Listen to Cleaning Garden Tools...

Containing Aggressive Plants

Mint, beebalm, and purple coneflower are garden favorites that often get out of hand. Tame these and other garden bullies with a few planting and maintenance strategies.

Listen to Containing Aggressive Plants...

Controlling Earwigs - Naturally

UGH! Oh gross! Both commonly heard right after an earwig is spotted.

Listen to Garden Moment...

Controlling Tent Caterpillars and Gypsy Moths in Winter

Start this year’s garden pest control with a stroll through the landscape.

Listen to Controlling Moths and Catepillars...

Converting Grass to Gardens

Add more planting space to your landscape by converting a portion of your lawn to a flower or vegetable garden.

Listen to Garden Moment..

Create Some Beauty from Landscape Trimmings

Listen to Garden Moment..

Dealing with Surface Roots

Avoid dulling your mower blades and more importantly damaging your trees by creatively dealing with the surface roots.

Listen to Dealing with Surface Roots...

Dog Vomit Mold Fungus

It’s foamy, slimy and rather disgusting to look at. And nothing describes it better than its common name – dog vomit mold fungus.

Listen to Garden Moment...

Don't Top That Tree

Stop – don’t top that tree. Instead, make sure it is properly pruned for years of health, beauty, and enjoyment in your landscape.

Listen to Pruning Trees...

Earth Kind Roses

Enjoy the beauty and fragrance of roses without all the work. Many of us have switched to hardier more pest resistant shrub roses for just this reason. But now, thanks to the Earth-Kind rose designation, growing roses will be easier for all.

Listen to Earth Kind Roses...

Earth-Kind Landscaping

You can have a beautiful landscape and be kind to the environment by adopting an Earth-Kind landscape philosophy.

Listen to Earth-kind Landscaping...

Eco-friendly Aphid Control

The hot dry air in our homes during winter is tough on us and our houseplants, but it’s great for insects. You may need to lend a hand this winter to keep your plants looking good.

Check plants regularly for signs of insects. You may want to break out the hand lens or recruit a younger gardener with better eyesight.

Listen to eco-friendly aphid control...

Eco-friendly Control of Apple Scab

Leafless crabapple trees are a common sight in summers following a cool wet spring. Start now to eliminate the problem next season.

Listen to Eco-friendly Control of Apple Scab...

Eco-friendly Control of Botrytis and Phytophtora Blights on Peonies

Keep your peonies looking good and healthy with a bit of grooming.

Listen to Eco-friendly Control of Blights...

Eco-friendly Crabgrass Control

Spring is the time to prevent crabgrass problems in the lawn. .

The best defense against this and other lawn weeds is proper care. Grow your grass tall. Keeping it 3 to 3 ½ inches tall encourages deep roots that are more drought-tolerant and better able to fend off pests and outcompete the weeds.

Proper watering and fertilization will further reduce weed problems. Even one fertilization a year, can greatly improve your lawn’s health and reduce weed problems.

Listen to Garden Moment

Eco-friendly Earwig Control

UGH! Oh gross! Commonly heard right after an earwig is spotted.

Listen to Eco-friendly Earwig Control...

Eco-friendly Insect Control

Every garden season is filled with beautiful or tasty surprises and a few challenges. You can prevent or reduce challenges and damage caused by insect pests and still be kind to the environment.

Listen to Garden Moment...

Eco-friendly Lawn Weed Control

A healthy lawn is your best defense against weeds. So if you want to reduce the problem - long term- you need to learn a bit more about the weeds.

Listen to Garden Moment...

Eco-friendly Mealybug Control

If your indoor plants have cottony masses on the leaves and stems, it is time to break out the rubbing alcohol and cotton swabs.

Listen to Eco-friendly Mealy Bug Control..

Eco-friendly Mosquito Control

Don’t let mosquitoes prevent you from enjoying your garden this summer. A fan and a bit of outdoor housekeeping will help you manage these pests.

Listen to Garden Moment...

Eco-friendly Perennial Garden Weed Control

So it seems your perennial garden is filled with more weeds than flowers. Now is a great time to reclaim your garden by getting the weeds under control.

Listen to Eco-friendly Weed Control...

Eco-friendly Powdery Mildew Control

Don’t panic when you find your zinnias, lilac, bee balm or phlox leaves are covered with a white powdery substance. This fungal disease, known as powdery mildew, is often a yearly problem on a variety of plants.

Listen to Garden Moment...

Eco-friendly Slug and Snail Control

Get the most flavor and nutritional value from your garden-fresh vegetables with proper harvesting, storage and preparation.

Listen to Garden Moment...

Eco-friendly Spider Mite Control

Yellowing, speckled leaves and small spider webs are sure signs spider mites have taken up residence in your plants.

Listen to Eco-friendly Spider Mite Control...

Eco-friendly Whitefly Control

Does this sound familiar? You brush your hand over your plants and a cloud of white fly-like insects disperse in the air. It is not a good thing.

Listen to Eco-friendly White Fly control....

Eliminate Floppy Perennials

Flopping perennials can ruin the beauty and enjoyment of your garden. Take note and prevent future problems with a bit of proactive care.

Listen to floppy Perennials...

Expanding Garden Beds, Chemical-free

If each year you find yourself trying to squeeze more plants into less space, it may just be time to expand one or more of your planting beds.

Listen to Expanding Garden Beds, Chemical Free...

Fall and Winter Care for Groundcovers

Falling leaves make a great mulch in the woods, but can spell death for groundcovers and the lawn. Make clean up easy for you and good for the environment.

Listen to Groundcovers Winter Care...

Fall Care for Perennials - Let Them Stand

Let ‘em stand for winter - perennials that is - for a healthier more floriferous garden next year.

Listen to Fall Care for Perennials...

Fall Cleanup - Don't Forget the Tools

As you pack it in for the winter, don’t forget about your garden tools.

Listen to Storing Garden Tools...

Five Minute Garden Maintenance

Improve your garden’s beauty, increase your enjoyment, and reduce stress five minutes at a time.

Listen to Garden Maintenance...

Flower Garden Design Basics

Creating a beautiful flower garden can be overwhelming, but understanding a few key concepts can make it much easier.

Listen to Flower Garden Design Basics...

Garden Math - Ordering Mulch and Topsoil

Don’t end up with a driveway full of excess topsoil and mulch waiting for friends and family to haul away the surplus for their gardens. Do a bit of math in advance and order just the amount needed.

Listen to Ordering Mulch and Topsoil...

Garden Pests: Controlling Japanese Beetles

You can’t miss them. These voracious garden pests eat and mate in broad daylight and feed on the leaves and flowers of over 300 different types of plants and the roots of turf grass.

Listen to Garden Moment...

Golden Canker on Pagoda Dogwood

Don’t let hot dry summers damage or even kill your Pagoda dogwood. Proper care and a bit of pruning can keep them healthy.

Listen to Canker on Pagoda Dogwood...

Green and Easy Landscape Care

Being kind to the environment does not have to be difficult. In fact, it can save you time and money.

Listen to Green and Easy Landscape Care...

Green Roof Birdfeeder

Invite the birds into your landscape for added color, motion, and interest while creating a focal point in one of your gardens. Plant a green roof birdfeeder.

Listen to Green Roof Birdfeeder...

Holes for Cabbage, Broccoli and Kale Leaves

Have you noticed those beautiful white butterflies flitting across your garden? Lovely to look at, but what they leave behind is a problem for gardeners.

Listen to Garden Moment...

Hosta of the Year

Hostas are great for shade and low maintenance gardens. But with hundreds of choices it can be a bit overwhelming. So the American Hosta Growers Association has stepped in to help.

Listen to Hosta of the Year...

Keep an Eye on the Weather and Grow a Better Garden

Be a weather watcher and grow a better garden. Weather events like spring floods, summer droughts, temperature extremes and unseasonable weather episodes can have long term impact on our plants.

Listen to Grow a Better Garden...

Kitchen Scraps to Gardener’s Gold

Give your garbage disposal and wallet a rest. Convert kitchen scraps into a nutritious soil additive for your garden while raising bait for your next fishing trip. All you need is a container with drainage holes, shredded paper, red worms and of course kitchen scraps.

Listen to Recycling Kitchen Scraps...

Low Maintenance Design Tips

Listen to Garden Moment...

Managing Early Sprouting Bulbs

A break in the cold winter temperatures can be a welcome reprieve for gardeners, but not such a good thing for our spring flowering bulbs.

Listen to Managing Early Sprouting Bulbs...

Monitor and Adjust Tree Care

Improve the health and longevity of your trees and shrubs with a bit of preventative care.

Listen to Tree Care...

Mulch Your Way to a Beautiful Low Maintenance Garden

Summers are filled with barbeques, vacations, and caring for our landscapes. Mulching is one way to save time and effort over a season or two, giving you more time for fun.

Listen to Garden Moment..

Mulching

Save time and energy and keep your landscape looking its best with mulch.

Listen to Garden Moment...

Planting a Garden...Jump Start the Growing Season

Don’t let cold soil and late spring frost delay the start to your garden season.

Listen to Planting Vegetables Early...

Preparing Perennials for Winter

Procrastination is a good thing when it comes to cleaning up your landscape in fall.

Listen to Preparing Perennials for Winter...

Preparing the Lawn Mower for the Season

Prepare your lawn mower now for the grass cutting season ahead. You will minimize breakdowns, frustration, and improve the health and beauty of your lawn.

Listen to Preparing Your Lawn Mower...

Prevent Future Insect and Disease Problems

Take some time now to reduce insect and disease problems in next year’s garden.

Listen to Preventing Future Insect and Disease Problems...

Prevent Problems in Your Vegetable Garden

Try a bit of preventative care in this year’s garden. You’ll increase your landscape’s beauty and productivity with less work on your part.

Listen to Vegetable Garden...

Pruning Perennials

Tame those unruly perennials with a little early season pruning.

Listen to Garden Moment...

Rake Away Snow Mold in the Lawn

Rake your way to a healthy lawn. As the snow recedes from the lawn break out the leaf rake and fluff up the grass. This helps reduce the risk of pink and gray snow mold developing and damaging your lawn. These fungal diseases are most common when heavy snow falls or ice covers non-frozen turf or after late winter snow storms. The damage is usually seen where snow lingers late in the season. Symptoms appear as circular areas of matted brown grass. You may even see a gray or pink cobweb-like growth over these areas. A light raking dries the grass, making it less susceptible to these diseases.

Listen to Garden Moment...

Recycle Your Christmas Tree

Don’t drag that Christmas tree to the curb. Give it a second life in your landscape.

Cut trees make great windbreaks in the landscape. Strategically place discarded Christmas trees on the windward side of rhododendron, boxwood and other broadleaf evergreens to reduce problems with winter burn.

Listen to Recycle your Christmas tree...

Removing Faded Flowers for Better Looking Plants

Removing faded flowers can promote repeat bloom and more compact, healthier growth.

Listen to Removing Faded Flowers...

Safely Store Landscape Products

Whether you’ve gone organic or use traditional fertilizers and pest management products you need to store them properly for safety’s sake and their longevity.

Listen to Storing Landscape Products...

Save Water and Money with Rain Barrels

Save money and be kind to your garden and the environment by capturing rainwater and putting it to work in your landscape.

Listen to Garden Moment..

Saving Geraniums

Your geraniums are at their peak bloom and you heard somewhere you could store them overwinter – but how?

Listen to Saving Geraniums over Winter...

Saving Hibiscus, Mandevilla, Bougainvillea and Other Tropical Plants Over Winter

You’ve enjoyed their blooms all summer and now you would like to preserve your hibiscus, mandevilla, bougainvillea, or other tropical plant for next season.

Listen to Saving Tropical Plants over Winter...

Selecting Rain Barrels

Save money and be kind to your garden and the environment by capturing rainwater and putting it to work in your landscape.

Listen to Selectin Rain Barrels...

Squash Vine Borer

All your hard work is paying off with an abundant harvest. Then, one day you notice your squash plants are wilted and near death.

Listen to Garden Moment...

Sweep Your Way to Cleaner Water

Break out the broom and sweep your way to cleaner drinking water.

Listen to Sweep your way to Cleaner Water...

Tired of watering? Save time, money and water with a few simple changes.

Mulch your garden beds with shredded leaves, evergreen needles, or other organic matter. It conserves moisture while suppressing weeds and improving the soil.

Listen to Water Saving Garden Tips...

Vacation Care for Plants

You’ve got the car packed, the pets at the kennel and your kids are ready to go. But what are you going to do about all those beautiful containers?

Listen to Self Watering Plant Containers...

Water Trees for their Health and Longevity

Save energy, care for new trees, and conserve water in one easy step.

Listen to Watering Trees for Health...

Water Wise Gardening

Use water wisely in your landscape to save you time, improve plant health and reduce your water bill.

Listen to Garden Moment..

Watering Tips for New Trees

Save time, energy, and conserve water while caring for your new trees.

Listen to Watering Tips for New Trees...

Weed Control in the Garden

No matter the time of the season, weeds seem to grow and thrive. Keeping them under control will give you a healthier, more productive and attractive garden.

Listen to Garden Moment...

Winter Protection for Evergreens

Make this the fall you protect your evergreens before winter winds and snowloads cause your arborvitae to split and rhododendrons to wither.

Listen to Protecting Evergreens in Winter...

Winter Rose Protection

Help your roses through the winter and be rewarded with beautiful blooms next season.

Listen to Protecting Roses in Winter...

Winterize Your Lawn Mower

Save yourself time, money and frustration by properly storing your mower for winter.

Listen to how to Winterize your Lawn Mower...