Trees

Asked April 28, 2018, 3:26 PM EDT

I have needle cast on my evergreen trees. What do I spray on them?

Hennepin County Minnesota evergreens needle cast horticulture

1 Response

Treatment is rarely necessary in the home landscape. It is important to know sprays only protect new needles and does not cure infected needles. https://extension.umd.edu/hgic/evergreen-needle-cast-diseases-trees-and-shrubs To identify the kind of needle cast if you haven’t done so can be done at the plant diagnostic lab. https://pdc.umn.edu/submit-sample https://hortnews.extension.iastate.edu/2007/4-18/conifer.html Treatment https://hortnews.extension.iastate.edu/2007/4-18/conifer.html