Crab Apple Trees – Fungus

We mentioned that we expect fungal issues to be extensive this year in the Western suburbs. We are certain of that. For those of you whose Crab Apples we treat for Apple Scab, we know you will be happy with your decision to treat your trees. You will realize just how glad as the Summer progresses and you see other area Crabs missing 70% to 90% of their leaves in July, August, September and October.

Keep in mind though that a new fungus hit the area in the past few years called ‘Frogeye’ Fungus. This fungus is different and not nearly as debilitating as Apple Scab. It may create bright yellow spots on the leaves initially and the tree may then drop some bright yellow leaves onto your lawn. This situation too will last a few weeks and then stop. This occurrence happens early enough in the Summer that the trees will still have a chance to re-foliate. It is not anywhere near as harmful as Apple Scab which creates dark brown and black lesions on the leaves. Our Apple Scab products are not labeled for Frogeye. There is a limit to how many products we can mix together and there is no single product that controls every potential fungus that is out there. We focus primarily on Apple Scab which does the most harm by far.

Is it Time to Spray Yet?

Wow, what a Spring! It’s almost May and leaves still aren’t present on trees and shrubs, but they should start to explode soon.  If you’re wondering if now is the time to spray for apple scab, the answer is not yet.

Please trust us to know when the optimal time to apply treatment in the western suburbs is. We monitor the plants that the fungal spores originate from, and once we see that they are becoming active we have a 10-day window to apply your 1st treatment.

For the record this will officially be the latest start to the fungicide treatment schedule in our 48 years in the tree care industry. The latest we ever ‘started’ these applications was April 29th with our 10-day window beginning from that date. From the looks of the situation, at the moment, we will be starting sometime in early May.

Remember to keep an eye on your trees and shrubs throughout the Spring and Summer for any new ‘situations’ that might arise. We work in cooperation with you in caring for your trees and shrubs as we are only on your property a few times a season but you are there every day!

Enjoy the Spring….once it gets here.

Crab Apple Trees Flowering in November?

You may have noticed that certain varieties of Crab Apple trees are displaying some  minor flowering right now. The below photo was taken October 31st.

The months of September and October were abnormally warm. This warm weather will confuse many flowering trees and shrubs.

Flower buds for the following year always form during the prior season. Ordinarily these buds sit closed on the tree throughout the Fall and Winter waiting on Spring. However, if the Fall season is unseasonably warm and those buds receive above average warmth for an extended period of time, a second flowering can occur.

What this means is that these trees will not flower as fully next Spring and in some rare cases, may not flower at all depending on the variety of tree involved. Even though you may not be seeing this second flowering occurring on your tree at the present time, that does not mean that your tree might not be affected next year.

Even if flower buds fail to open as those shown in the photo, they may have swelled beyond the point that they normally would. If that is the case, it is possible that Winter’s cold temperatures and winds might burn the swollen buds that are not as dense, compact and insulated as they normally would be. Should this occur, the buds will sustain damage and not open next Spring. Only time will tell.

On a better note, we have been driving past clients homes this Fall checking on our fungal treated Crab Apple trees and we hope you are as happy with their condition as we are. We promised our new treatment products for 2017 would produce tremendous results and they obviously have! We are seeing Crabs that are still fully leafed!

Have a wonderful Fall and upcoming Holiday Season.