My old sycamore at the fence line came back fully green by midsummer with no spray and no pruning. For weeks it dropped blotchy, half-bare leaves. From the kitchen window it looked half dead. Then it filled right back in. That is what anthracnose recovery looks like on an established tree. The answer is yes for big trees like mine. But it is a firm no for crops and prized garden plants. So the honest reply is that it depends on what got hit.
I watched that tree every morning while the coffee brewed. Each storm knocked off another round of curled, brown-edged leaves. The canopy thinned out fast and I started to worry. By June a fresh wave of clean leaves pushed out. It covered all the bare gaps. The tree never got a drop of treatment from me, and you may see the same thing in your own yard.
Here is the part that trips most people up. The plant can outgrow the damage, but the infected tissue never heals. A leaf with a dark sunken spot stays scarred until it falls. A blotched stem or a spotted fruit will not turn healthy again. So infected tissue healing is not really a thing with this fungus. What you read as a cure is the plant growing new clean tissue. It simply replaces what the fungus ruined.
On a big shade tree that swap is enough. Tree re-leafing is the whole story for you here. A bare ash, maple, or oak tends to grow a second flush of leaves. That new flush shows up by midsummer once the weather dries out. Tree experts at the University of Minnesota say the same thing. The early leaf drop looks alarming. But it is mostly cosmetic on a mature, healthy tree. Your tree spends stored energy to grow the new flush. A young or stressed tree needs a closer watch than mine did, so keep an eye on yours.
Crops are a different animal. Mango and papaya do not shrug this off. They lose real marketable yield when you leave it alone. Unmanaged mango plantations can see losses up to 100%. Papaya runs 25% to 40% postharvest losses. Those numbers come from peer-reviewed work in the Journal of Fungi and Frontiers in Microbiology. The fruit spots, softens, and rots. No second flush of leaves can fix a ruined harvest for you.
Garden vegetables act the same way. Beans, tomatoes, peppers, and squash will not grow their way out of it. A 40-foot tree can, but your bean plant cannot. The fungus keeps spreading by water splash. Every rain or wet leaf moves more spores around. So a small patch becomes a wrecked bed fast if you wait it out. When you spot the first sunken spots on your crop, treat them as a signal to act, not a phase that will pass.
So match your effort to the plant. A mature shade tree rarely needs you to step in. Just rake up the fallen leaves so fewer spores survive near the trunk over winter. Save your energy for the plants that will not save themselves. High-value fruit and vegetables need active prevention because they do not recover on their own once the lesions set in. Plant resistant varieties where you can. Water at the soil line in the morning so leaves dry fast. Give plants room for air to move. Start protectant sprays before wet weather, not after the spots show up. That is the real path to anthracnose recovery on the plants that matter most to you.
Read the full article: Anthracnose Disease: Identify and Stop It
