Korean white pine - Ask Extension
My white pines are looking yellow. They are being irrigated 2 times a week for 30 minutes. I’m turning off the irrigation but is there anything else...
Knowledgebase
Korean white pine #879698
Asked August 01, 2024, 9:45 AM EDT
My white pines are looking yellow. They are being irrigated 2 times a week for 30 minutes. I’m turning off the irrigation but is there anything else I should do for this problem?
Todd County Minnesota
Expert Response
Start with a soil test. https://soiltest.cfans.umn.edu/
There is a fee for this. The light needle color may be a nitrogen deficiency, but check your soil to be sure.
Other possible problems.
https://ag.umass.edu/landscape/fact-sheets/diplodia-blight-of-conifers
https://extension.umn.edu/plant-diseases/white-pine-blister-rust
https://mortonarb.org/plant-and-protect/tree-plant-care/plant-care-resources/pine-diseases/#overview
General Information
https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=284965
There is a fee for this. The light needle color may be a nitrogen deficiency, but check your soil to be sure.
Other possible problems.
https://ag.umass.edu/landscape/fact-sheets/diplodia-blight-of-conifers
https://extension.umn.edu/plant-diseases/white-pine-blister-rust
https://mortonarb.org/plant-and-protect/tree-plant-care/plant-care-resources/pine-diseases/#overview
General Information
https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=284965
