MINNEAPOLIS — Trees, yards and gardens are lush with all the rain recently. But some people wonder if the weather has also helped stop a pesky problem this time of year. Why are some maple trees not ...

If you think you’ve been seeing an invasion of helicopters this year, you’re not imagining things. Southern Minnesota maple trees are producing a copious amount of seeds that flutter from their ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Andrew Dickerson, University of Tennessee (THE CONVERSATION) When wind or other ...