Knowledgebase
Apple and ash trees #744616
Asked April 16, 2021, 9:21 AM EDT
Hennepin County Minnesota
Expert Response
Regarding treating the ash trees, it is a personal choice depending on the size, condition and location of your trees. Older trees may be more difficult to treat.
Without knowing the name and age of your apple trees, it can be difficult to determine why one is producing and the other not producing. One indicator is whether they are able to cross pollinate. This can depend on a number of factors, the most important being whether they bloom at the same time. Please send more information about the tree names and ages for a more accurate assessment.
Our publication on growing apple trees will answer some of your spraying questions. See: https://extension.umn.edu/fruit/growing-apples