How do you treat holly leaf spots?

You can use a solution of one part bleach and nine parts water. Gather and remove any leaves that fall, and destroy them to avoid spreading the fungus to nearby trees and infecting new growth. Fungicide applications on the shoots and leaves of holly trees will mitigate the effects of holly leaf spot.

How do you treat a holly bush fungus?

In nurseries, apply a fungi- cide (See Table 1) every 10 to 14 days starting at bud break until all new growth matures. In land- scapes, apply fungicides only to plants previously damaged by disease. Begin fungicide sprays at leaf-out and repeat every 10 to 14 days until shoot growth has stopped.

What does fungus look like on holly bushes?

The two most prevalent fungal holly tree diseases are tar spot and cankers. Tar Spot – Tar spot usually occurs with moist, cool springtime temperatures. This disease begins as small, yellow spots on the leaves, which eventually become reddish brown to black in color and drop out, leaving holes in the foliage.

What causes brown spots on holly leaves?

Holly leaf spot is normally caused by several fungi, which are either Phacidium curtisii, Coniothyrium ilicinum, or Phytophthora ilicis. The fungi each attack different types of holly plants but they all cause holly problems that are very similar.

What to do about holly leaf spot disease?

  Holly leaf spot diseases are usually more severe after wet springs, but they rarely warrant fungicide controls.   Fungicide sprays protect the new green shoots and leaves.   Begin sprays as the buds swell and reapply 2-3 more times at label intervals to maintain protection during vulnerable periods. Written by: Dan Gillman Revised: 09/2011

What kind of disease can a holly tree get?

Most diseases that affect holly trees are caused by fungi, causing only cosmetic damage in landscape plantings. Root rots, however, are lethal and can live in the ground for many years even without a holly tree present. Prevention is the best form of treatment and holly diseases can often be avoided by practicing…

Can a Holly plant get a tar spot?

In fact, there is some dispute about whether Coniothyrium ilicinum is a primary leaf spot disease or a secondary invader of senescing foliage. On the other hand, Phacidium species is considered a tar spot disease but its biology has not been studied in detail. Holly leaf spots seldom cause significant damage to the health of infected plants.

Why are the leaves on my holly tree turning brown?

Anthracnose – This fungus disease causes distinct lesions on Holly leaves, appearing as moist, sunken spots with fruiting bodies in the center. Leaf spots may run together, resembling a blotch or blight. Sometimes terminal shoots blight down to several inches below the buds.