Linden Tree Disease

Overview

Linden trees are susceptible to fungal infections that cause cosmetic to severe damage. Knowing what to look for is only half the battle. In addition to visual signs, familiarize yourself with effective control methods to prevent or deal with infection. Through appropriate care, your linden trees can avoid illness and remain vigorous in your home garden.

Preventive Care

Through proper maintenance, your linden trees will remain healthy and prepared to resist or fight off fungal infections. Weakened trees are more vulnerable to fungal problems than vigorous trees. Plant lindens in locations that provide good air circulation and full sunlight. Lindens prefer moist, well-drained soil with good fertility, according to the North Carolina State Cooperative Extension Service.

Fungal Infection

Fungal infections like anthracnose attack a wide variety of shade trees including lindens. Fungi that have overwintered on plant debris are transported by wind or rain to new leaf growth on linden trees. In wet conditions and cool temperatures, the fungi germinate and infects leaves and stems, according to the University of Illinois Extension IPM.

Symptoms and Damage

On linden trees, anthracnose disease results in the presence of leaf spots and cankers. Leaf spots appear in a light brown color on leaf surfaces and may display darker hued borders, according to the University of Illinois Extension IPM. Additionally, cankers or lesions of dead tissue form on twigs. Infection may lead to diminished tree health and severe defoliation, particularly in extremely moist conditions favored by fungi.

Natural Control

For natural control of fungal disease on linden trees, remove and destroy affected plant parts to prevent the localized spread of disease as well as the sporadic spread of pathogens to another plant, according to the University of Illinois Extension IPM. Avoid waterlogged soil and overhead irrigation as excessively wet plant parts provide the ideal environment for fungal germination. Sanitize pruning shears after every cut and with each use on a different tree to prevent disease transfer.

Chemical Control

Though the use of chemical control is usually not necessary, for severely infected linden trees, apply an appropriate fungicide. For anthracnose control, fungicides with the active ingredient benomyl, copper hydroxide or lime sulfur are effective, according to the Iowa State University Extension. Though fungicides are generally available for home application, contact a licensed professional or your local county extension agent if you are in need of application assistance.

Keywords: linden tree disease, linden tree infection, fungal linden disease

About this Author

Tarah Damask's writing career, beginning in 2003, includes experience as a fashion writer/editor for Neiman Marcus, short fiction publications in "North Texas Review," a self-published novel, band biographies, charter school curriculum, and articles for eHow. She has a love for words and is an avid observer. Damask holds a Master of Arts in English and creative writing from the University of North Texas.