Jul 20, Your crepe myrtle with yellow leaves may have fallen victim to Cercospora leaf spot. If the spring was very rainy and the leaves turn yellow or orange and fall, this is likely the issue.
There is no real point in trying fungicides against this. Jul 11, QUESTION: The leaves on my crape myrtle trees are turning yellow and falling. Could the problem be a fungus, and if so, is there a good systemic product I can apply to the base of the trunk for Estimated Reading Time: 1 min. Cercospora leaf spot is a fungal disease that is most active in warm, moist weather.
The disease attacks foliage, causing yellow spots and sometimes, defoliation. Avoid crowding crepe myrtle. Sep 10, It's blooming just fine but the leaves are turning splotchy yellow and falling to the ground.
I live in Dallas, TX. As you guys know, it has been very hot and dry this summer. I've watered the crape myrtle about once a week during the hottest time period but I don't feel that water is the cause of the problem.
When yellow leaves happen where soil pH is ideal, a true nutrient deficiency may exist. Some nutrients are very mobile. Nitrogen, for example, moves through soil easily and leaches away. Unless soil nitrogen is regularly replaced through fertilizer applications, nitrogen deficiencies turn lawns and plant leaves yellow or pale stumptrimmers.buzzted Reading Time: 7 mins.
Light green leaves to 4 inches long and 2 inches wide turn yellow in fall. Especially handsome bark: The smooth gray outer bark flakes awawy to reveal glossy cinnamon brow nbark beneath. Small white flowers are borne in 2- to 4-inch long clusters. The Good News. In the garden, leaf spot's toll is merely cosmetic. It will not kill your crepe myrtle. It will not affect its blooming next year. The leaves that fall were going to drop in a month or so anyway.
The only consequence for you is if they fall on a porch, deck, walk, or patio below, forcing you to blow or sweep them off every couple. Why Are My Plant Leaves Turning Yellow?
1. Not Enough Water. One of the most common causes of yellowing leaves is moisture stress. If your plant is not getting enough water, its leaves will start to droop so the plant can prevent excess transpiration. This conserves water. Right before the leaves fall off the plant, they will turn yellow.