Prime before painting outdoor piece?

[Doug Hobkirk]

I finally finished two Adirondack chairs -

• one oak (white oak frame, red oak slats) to be stained (Sikkens if I can find it, #1 of semi-transparent stains in Consumer Reports)
• one pine (PT for pieces that touch ground) to be painted w/ Valspar Ultra Premium exterior latex (#2 in Consumer Reports)

Should I prime with Kilz (or something else) before painting the pine chair?




Thanks