If your crabapple drops its leaves every year despite your best efforts, consider.
Sep 21, My Crabapple Tree Is Losing Its Leaves Early. Crabapples (Malus spp.) are favorite specimen trees prized for their showy flowers, colorful fall foliage and small, edible fruit. In general, the. What causes these attractive trees to drop their leaves mid-summer? The answer is a fungal disease called apple scab. A fungus called Venturia inaequalis infects crabapple leaves early in the spring.
Most people don't notice the disease, though, until these infected leaves turn yellow and fall off the tree. May 08, These crabapple trees can add a lot of charm to any property, and they look stunning at many different points in the year.
If you take care of your crabapple tree, then it should look pretty vibrant during the spring and summer months. However, some people have had issues with crabapple tree leaves turning brown or yellow. My flowering crabapple tree, which is 40 years old, drops it's leaves every year after spring when it usually looks good and has plenty of flowers.
I'm told that it's an older variety that is not resistant to blight. I used to be able to spray it with a fungicide but it had gotten too big.
Last year.