Little White Balls in my Phartenocissus

Hello again.
The spring is starting and the problems to...this time i found these small little white balls in my Parthenocissus:





My 2 Parthenocissus quinquefolia that i bought last November are full of them, and i don't know what to do...

Thank You.

 

Nothing to worry about.

i'm not exactly sure what causes them but I think the plant produces them.
Young shoots on grape vine usually do the same.

 

Thank you Pete, im more relieved

 

I so much prefer your first name for your plant - phartenocissus is so much more fun than parthenocissus !!!! : )))