How do I get rid of crepe myrtles blight?

How do I get rid of crepe myrtles blight?

Spray the infected crepe myrtle trees with copper fungicide or lime sulfur fungicide. Start spraying when the leaf tip symptoms first show up, then repeat every ten days during wet weather.

Can you overwater a crape myrtle tree?

Crape myrtle trees need the most moisture in the soil profile when they are actively growing — when the plant displays leaves. Overwatering crape myrtles in spring and summer can diminish flowering, since overly moist soil promotes leafy growth, not flower production.

How often do you water a crape myrtle tree?

For best growth and production, crape myrtle should receive at least one inch of water a week. During dry spells, water is mandatory. If not properly watered during dry spells, flowers may be mitigated. Keep at least 4 feet around the shrub clear of grass and weeds, for less competition for water.

What is the best fertilizer for crape myrtles?

To maximize spring growth and summer bloom, gardeners should fertilize their crape myrtles in early spring just prior to new growth. Fertilizers like 8-8-8, 10-10-10, 12-4-8 or 16-4-8 will work fine and are ideal for crape myrtles but you shouldn’t go over board.

Why are the leaves on my crepe myrtle turning black?

If the spots are tiny black spore-bearing bodies, your tree may be suffering from tip blight. Blight can be caused by overly moist foliage, so immediately stop overhead watering and prune the plant to let the air pass through. You should apply a copper or lime sulfur fungicide as soon as you notice the browning leaves.

How can you tell if a crape myrtle is dying?

They are very small, you will need a magnifying glass for them. They will leave a “gritty” texture to the leaves if they are there, and it will look as if there is a cloudy texture to the leaf if they are really bad. There will be very fine webs if they are there in abundance.

What kind of fungus is on my crepe myrtle tree?

Sooty mold indicates the presence of insect infestation. This is a charcoal black fungus that covers the surface of leaves, fruits, twigs, and branches of the trees. This fungus does not cause any pathogenic problems on the tree. It gets its nourishment by feeding on the insect honeydew.

When to prune crape myrtles in North Carolina?

In some northern areas crape myrtles are victims of cold snaps which kill their tops. Their roots are generally cold hardy, however, so simply prune off the dead material early in the spring before growth starts.

Why are the leaves on my crepe myrtle turning brown?

Crepe Myrtle Leaves Turning Brown in Summer. Nonetheless, they do need water, and they may dry up during especially hot summers with little rainfall. Northerners who grow the bush (it is not nearly as popular in the North) are far less likely to experience a problem with their crepe myrtles drying out.

What to do with dead leaves on crape myrtle?

Cool, moist weather encourages these diseases, especially when new leaves are developing. Shake out all fallen and diseased leaves from the center of the crape myrtle and destroy them. Remove all dead branches from shrub centers, especially in crape myrtle hedges to allow better aeration.

When do you cut back a crepe myrtle?

To reduce a crepe myrtle’s height, use hand pruners or loppers to shorten the topmost branches by 2-3 feet in late winter, always cutting back to a side branch or bud. For branches more than 2 inches thick, always cut back to the crotch or trunk. Don’t leave big, ugly stubs.

What to do about root suckers on crepe myrtle?

Grafted trees and street trees always suffer from a little stress, so you are likely to spot root suckers regularly. Reduce the amount of root suckers by reducing the crepe myrtle’s stress. Be sure it gets sufficient water and nutrients, limit pruning and check for pests.