Question
good after noon
i have a lot of Red turnip beetles how could i rid of it ?
how  danger are they ?
thank you for helping

Answer
These insects can be a problem on crops but not on trees so my dealings with them is in my own garden. Here is a web link to the information on Red turnip beetles and their control.

http://www.extension.umn.edu/garden/insects/find/red-turnip-beetles-in-home-gard