Act Now to Protect Your Trees from Cedar Apple Rust

Protect Your Trees from Cedar Apple Rust – Act Now!

Cedar apple rust is a common fungal disease that affects apple, crabapple, and cedar trees. Unfortunately, many gardeners don’t realize they need to treat for this disease until it’s too late. By the time symptoms appear in summer—yellow-orange leaf spots on apple and crabapple trees or gelatinous orange growths on cedar trees—the damage has already been done. The best way to protect your trees is to take preventive action now, before the disease has a chance to develop.

Gelatinous Orange Growths on Cedar Trees

Gelatinous orange growths on cedar trees

What is Cedar Apple Rust?

Cedar apple rust is caused by the fungus Gymnosporangium juniperi-virginianae. It requires both apple (or crabapple) and eastern red cedar (or other juniper species) to complete its life cycle. The fungus overwinters on cedar trees and releases spores in the spring, which infect apple and crabapple trees just as they begin to leaf out.

When and How to Treat

The key to preventing cedar apple rust is applying fungicide at the right time. Preventive fungicide treatments should begin in early spring, just as apple and crabapple trees start breaking dormancy and new leaves emerge. Repeat applications may be necessary every 7–10 days until petal drop, depending on weather conditions.

Recommended Treatments

  • Fungicides: Apply a protective fungicide containing myclobutanil, propiconazole, or mancozeb. Follow label instructions carefully for the best results.

  • Cultural Controls: Reduce the spread of cedar apple rust by removing nearby eastern red cedars or junipers, or by pruning out infected branches if removal isn’t an option.

  • Resistant Varieties: When planting new apple or crabapple trees, consider selecting rust-resistant varieties to minimize the risk of infection.

Cedar Apple Rust Spots

Rust on pear leaves

Act Now Before It’s Too Late!

Once you see the effects of cedar apple rust in summer, it’s too late for treatment in the current season. By treating your trees in early spring, you can break the disease cycle and keep your apple and crabapple trees healthy all season long. Stop by our garden center today to pick up the right fungicide and get expert advice on protecting your landscape from cedar apple rust!

Living Christmas Trees

upclose image of a christmas tree branch with vibrant green needles
At Marcum’s Nursery, we want to be a part of your family’s yearly holiday tradition of choosing the perfect Christmas tree. Whether you prefer a cut or living Christmas tree, we have options to meet your Christmas tree needs. Here we will discuss living Christmas tree pros and cons, some popular living Christmas tree options, tips for choosing the right variety for your family, and living Christmas tree care instructions.
WHAT IS A LIVE CHRISTMAS TREE?
A live Christmas tree is just what it sounds like – a tree with its roots intact and typically sold in a container. After the Christmas season, a living Christmas tree can be planted on your property to serve as a reminder of Christmases past for years to come.

PROS AND CONS OF LIVE CHRISTMAS TREES

1. ECO-FRIENDLY

The main advantage of a living Christmas tree over other options is sustainability. It goes without saying, but we’ll say it anyway – it’s good for the environment to plant trees.  And, while we do love the idea of visiting a Christmas tree farm and cutting down the perfect tree with your family, there is a small bit of sadness attached to cutting down a beautiful, healthy tree. 

2. BETTER QUALITY

A living Christmas tree is usually more fragrant than a cut tree. It also stands firmly in the container, so it isn’t as likely to be wobbly or tip over as a cut Christmas tree in a stand. Since a living Christmas tree still has its roots intact, it should last much longer indoors than a cut tree if it is well-watered – cut trees can dry out quickly, but a living tree with a root system is much better equipped to take up water and stay hydrated. 

3. SIZE & WEIGHT

Living Christmas trees are typically much heavier than cut Christmas trees due to the weight of the root ball.  The added weight of the root ball might force you into a smaller tree than if you were buying a cut tree that won’t have a root system intact. 

4. PRICE

On the downside, living Christmas trees generally cost more than cut trees.  However, your investment doesn’t get thrown out with the wrapping paper and empty gift boxes after Christmas.  Over the years, your family can build a living collection of holiday memories that you get to watch grow.  

LIVE CHRISTMAS TREES OPTIONS

If you’re ready to start your family’s living Christmas collection, it’s time to choose the best Christmas tree for your home and landscape.  The right variety will depend on the size of your home and room in which you plan to put the tree, where you plan to plant it after Christmas, and the amount of sunlight it will receive.  Some varieties will need afternoon shade while others thrive in our hot summer conditions, some varieties get rather large at maturity while others stay smaller and narrower when fully grown.  

Below are some of the most popular live Christmas trees and some that deserve extra consideration given their suitability for thriving in Oklahoma landscapes once their holiday stay inside your home is finished.

1. COLORADO SPRUCE

The Colorado Spruce is famous for its silvery blue-green needles and incredible symmetry. It also carries a good number of heavy ornaments on its needles.  The Colorado Blue Spruce can tolerate a good amount of sunlight but, in our part of the country, aim to plant in a spot where it has some blockage from the sun’s hottest afternoon rays.

2. DWARF ALBERTA SPRUCE

The Dwarf Alberta Spruce exhibits soft, dense green needles.  It makes an excellent miniature Christmas tree indoors or strung with lights in containers on the porch.  It requires afternoon shade once planted outdoors in central Oklahoma. 

3. NORWAY SPRUCE CHRISTMAS TREES

If you’re looking for a live Christmas tree with a lovely mild scent, the Norway Spruce is a great choice. Its luscious forest-green limbs form that classic cone shape we love about Christmas trees.   

4. DEODAR CEDAR

The Deodar Cedar makes a beautiful living Christmas tree with its gray-green foliage and graceful branches.  Make sure you have plenty of room for it once you get it outdoors, however, as the deodar can grow over 40’ tall and 25-30’ wide.  Once established, the Deodar is also very heat and drought-tolerant.  

5. HOLLIES

Maybe you have never thought to choose a holly as your family’s living Christmas tree, but it could be the tree that keeps on giving for Christmases to come!  Several holly varieties produce beautiful berries in fall and winter that could be clipped yearly and used as beautiful additions to garlands and wreaths for your home throughout the holiday season.  

6. JUNIPER

Several upright juniper varieties make lovely Christmas trees, and, like the holly, juniper clippings make for nice additions to garlands, wreaths, and Christmas boughs as well.  Plus, you’re sure to find a juniper to meet your landscape needs as well; some varieties stay narrow while others get quite wide, and there is a good range of foliage colors available with junipers as well.

7. LEMON CYPRESS

This bright beauty makes the cutest potted evergreen for tabletops and porches during the holiday season.  However, it is useful in the landscape long after Christmas.  It has a very narrow habit only reaching about 3 feet in width and only about 10 feet in height making it a great choice to flank windows or create a hedge in a tight space.  It can even be kept in containers or used for bonsai.    

8. ARIZONA CYPRESS

Arizona Cypress is very tolerant of the hot, dry conditions we experience during Oklahoma summers, and it is often used in green belts and privacy screens.  The soil where they grow natively is much rockier and better draining than Oklahoma soil, however, so amend tight, clay-like soils to give them ideal conditions.

9. ROSEMARY

Have yourself a rosemary little Christmas! Rosemary makes the most beautiful little Christmas tree for a kitchen countertop where it can be used to season your holiday dishes and brushed occasionally to release its lovely scent throughout the home.  

10. NORFOLK PINE

Norfolk Pine is a houseplant in our climate, so you definitely don’t plant this one outside after the holiday.  You can, however, move it to a covered porch for a few months when temperatures warm up in the spring and summer.  Grown indoors it can get up to 8 feet tall.

LIVING CHRISTMAS TREE CARE INSTRUCTIONS

  • Transition your tree: When possible, transition your tree from the outdoors to a garage for a day or two before bringing it indoors.  Do the same when moving the tree from your home to the outdoors.  This will help the tree to better acclimate to the change in temperatures.  
  • Timing is everything: Your live Christmas tree should stay indoors for no more than 10 days. The warmth in your home may harm the tree or trigger a springtime growth, stunting its growth when you plant it outdoors. 
  • Choose the right spot: Live Christmas trees like cool spaces such as your porch, entryway, and near windows. Avoid heaters and fireplaces since the warmth makes the needles drop.
  • Maintain the live tree indoors: For your live Christmas tree to thrive, water it daily, and keep the root ball covered with a plastic bag. Maintain your indoor temperature at 68° F or less to keep the live Christmas tree from wilting. 
  • Plant and mulch: When it’s time to plant, position the root ball in the prepared hole, mix the existing soil with Redbud Compost, cover the root ball with the soil and compost mixture, and gently tamp it down to remove air spaces. A layer of insulating mulch helps to prevent freezing, keeps moisture near the root ball, and can even keep weeds at bay. 
  • Irrigate regularly: Water your live Christmas tree at the time of planting to help it adjust to and thrive in its new location. When temperatures are above freezing, which can be significant portions of Oklahoma winters, your tree will benefit from occasional, deep watering. 

CONCLUSION

Live Christmas trees are an investment in your landscape and create a cool family tradition.  Who wouldn’t want Christmas reminders sprinkled throughout the landscape to add extra jolliness throughout the year?!

What a Wonderful World

Here at Marcum’s every day is Earth Day. So, we’re always striving to make Mother Earth proud! Here are 5 ways to make your green space even greener:

USE BIODEGRADABLE POTS

The big advantage of using biodegradable pots is that you’re reducing your plastic use right away. It’s an easy way to go more green with your gardening. They can also increase your transplanting success rate, because your seedlings will get less stressed when you move them into the garden.

CURRENTLY AT MARCUM’S

Don’t miss out on these fragrant beauties currently avalaible in biodegradable pots at a Marcum’s Nursery near you.

PEONIES
ROSES

SKIP THE HARSH CHEMICALS

Make your piece of the planet a healthier place to live by using Natural Guard products. Natural Guard by ferti•lome is dedicated to making products that allow all homeowners to feel good about their lawn and garden choices. All Natural Guard fertilizers are OMRI LISTED FOR ORGANIC USE and safe to use around family and pets.

INVITE BENEFICIAL INSECTS TO YOUR LANDSCAPE

Know the “good guys” from the bad in your garden is crucial in helping Mother Nature along in producing the best results for landscape. Whether you purchase some garden friends such as ladybugs and earth worms or are attracting benefital insects naturally to your outdoor space…

LET’S SAVE WATER!

Planning a garden that doesn’t require heavy water usage is easy, as long as you have some basic tools and materials. Start planning your water-saving garden with options like:

  • Soaker hose: Slowly drips water at a low pressure, keeping plants, shrubs and trees evenly watered.
  • Rain barrel: In dryer climates, a rain barrel is a must-have gardening staple. These effective water storage systems capture and store rainwater from your roof that would otherwise be wasted due to runoff.  
  • Tree watering bag: For newly planted trees, a tree watering bag is a reliable watering system that can reduce your water usage. These durable bags wrap around your tree and slowly disperse water to the roots over a watering time of five to nine hours. Simply fill the bag with water, and it’s ready to use. 
  • Use water-retaining crystals or gel to retain water in containers so you don’t have to water them so often.

SHADE TREES FOR THE WIN!

As we all are are aware, trees are a crucial player in oxygen production and living organisms’ survival. But it’s time to give trees additional props for all the shade they provide as well. Planting 2-3 shade trees around your home can naturally help cool things off. Less use of the AC, more financial savings, and most importantly – Mother Earth Approved!

TREES TO PLANT NEAR YOUR HOME

While we are huge advocates of “the more trees the merrier” we don’t reccomend just any variety for planting directly near your home.

ORNAMENTAL

If you have a little yard, we would say ornamental trees make a perfect choice.  These types of trees are ideal insects and birds and sometimes can come with a gift in the form of fruit you can eat.  

CONIFERS

If you are looking for a way to protect yourself from curious neighbors that confer trees are the best option for you.  They are named conifers because of the cones they bear. They can also provide you with some shade. 


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