Cool, wet weather has reared its ugly head, resulting in our first reports of anthracnose fungal disease on shade trees this year. Common on sycamore and maple, the disease can also infect oak, ash, elm and others.
On older leaves, look for brown areas that tend to show up along the major veins on the leaf. Younger leaves may actually wither and turn black. If the leaf stems (petioles) are infected, you might even see leaf drop, even as the leaves look perfectly fine.
If the disease is severe, leaf drop can result in complete defoliation – but don’t panic. If your trees are healthy, they should leaf out again in a few weeks with the overall health of the tree relatively unaffected. Trees have plenty of time to produce new leaves and make the energy reserves needed to survive the winter.
Because anthracnose seldom causes significant damage to trees in Kansas, chemical controls are usually unnecessary. Since the fungicides do not cure infected leaves, applying fungicides now will be of no value.
MOST VIEWED STORIES
Three injured in Brown County rollover crash
Dump truck driver hospitalized after Jackson Co crash
Highland search warrant leads to arrest, alleged stolen property, drugs
Motorcyclist dies following Leavenworth wreck
Troy residents jailed following Friday search warrant
Hearing postponed for man charged in murder of Seneca priest
Jury trial set for Atchison man charged in Brown Co burglaries
Embattled Baniewicz restricted by Archdiocese
Netawaka man arrested on meth charge
Brown County opts out of school health inspections
Two arrested after early morning Jackson Co traffic stop
Man sentenced in murder of former Holton man
Leader, educator, honored by Atchison's Benedictine College
Health advisory issued for additional local lake
USD 430 board approves Horton High School project
Nemaha Co company awarded state grant
Committee formed for Atchison Co Lake's future
Race-based covenants addressed by KS senator
LATEST STORIES
Falls City Council approves street closures for local events
Johnson-Brock School Board meets
Man sentenced in murder of former Holton man
Brown Co gives support to historic byway designation
Falls City Council approves health insurance plan
Funding foundation in place for new Doniphan Co animal shelter
Brown County opts out of school health inspections
Embattled Baniewicz restricted by Archdiocese
Hearing postponed for man charged in murder of Seneca priest