What is the tree? AND what to do about the pests on it.

Hello. I have recently moved to the end of the Washington State Peninsula (the end of the world). There is a tree in my yard that resembles an umbrella. Closely spaced branches, about 7 feet tall. There are leaves on the tree that are long and narrow. When I first moved in, I noticed TONS of bees in the tree and after being brave enough to get a bit under the tree, determined that there wasn't a nest/hive, just lots of bees. Also on some of the branches what looks like black aphids. Large black aphids. Any idea what the tree is and what the pests are and how to treat the tree? Thank you so much!

 

please post a pic.

 

Sumac?

 

Maybe a dwarf weeping willow with an infestation of aphids (it often does!) with wasps and/or bees gathering the honeydew from them?

 

Thanks for the response. Would love to send pic, however, have no digital camera. I will look at information on Dwarf Weeping Willow. I know we had aphids on our Crepe Myrtle and then the bees. That may be what this is. Rains have started here...maybe that will wash the tree and I will apply systemic through the root system. Thank you again.

 

The systemic poisons the soil, apply with care following label directions to the letter. Since the bugs are liable to soon disappear maybe no point in using it now. And do make sure there is, in fact a pest infestation before using it.

Systemics work by being so toxic they cross the plant's barriers to chemicals and make its sap poisonous.

Small pendulous willows sold here include

Salix caprea 'Kilmarnock'

Salix purpurea 'Pendula'

Neither has long leaves but they are narrow.

 

Thank you Ron for the response. If there is an organic type of systemic that will take care of the aphids, I would certainly be interested in the information. You're right, the pests will go away anyway. But, what type of prevention can I use, especially to be prepared for Spring and preventing another onset?
By looking at the pictures, I believe that I have a Salix Kilmarnock. It's in a perfect small spot in my garden and I hope to enjoy it for years to come.
Thanks again.