Lavender Tree

Question

I believe my lavender tree has some sort of fungus. The leaves start turning yellow and then edges start turning brown. I have been researching information and think it has a soil fungus. But everything I am reading does not give any hope of curing it. Last year it did the same thing only only on a couple of branches, but this year seems more. The last two years we have had more rain than usual in the spring. It sits in the middle of my yard. The grass around it is bermuda grass. Should I just dig it up or try to treat it? What will it do to the grass? If it is getting to much water, not sure how to handle watering of the grass if root fungus is the problem. Thank you.

Answer 1

I assume you mean a Lavender Twist Redbud Tree.
Verticillium wilt fungus resides in the soil. Keeping a tree vigorous, by providing proper irrigation and modest amounts of fertilizer, is the best way to increase its chance of survival. If chronic dieback occurs, dead wood should be eliminated by pruning. If a tree does die, only trees or plants resistant to verticillium wilt should be replanted in the area.
If you do look to replace Verticillium wilt fungus resides in the soil. Keeping a tree vigorous, by providing proper irrigation and modest amounts of fertilizer, is the best way to increase its chance of survival. If chronic dieback occurs, dead wood should be eliminated by pruning. If a tree does die, only trees or plants resistant to verticillium wilt should be replanted in the area.
https://www.gardeningknowhow.com/ornamental/trees/redbud/growing-lavender-twist-redbuds.htm