lots of insect and bird action on Dutch Elm
Hi- We have a Dutch Elm and today it is hosting hundred of decent sized bees that appear to attacking cicada killers. The bees aren't crawling on the tree as much as hovering facing the tree and flying toward it. There are about 4 cicada killers where all the action is. There's also a gold finch, a woodpecker, a couple Monarchs and a few smaller orange butterflies and many lady bug-like beetles (orange, no spots) are also on the tree. I couldn't get a good image with my camera- not a good zoom. Any ideas?
Based on your description we cannot say for sure what you may be dealing with. It is possible you may be noticing European hornets stripping or girdling the bark of young twigs. No control is necessary.