Name: Daisy I Reno, Nv (Zone 6b) Not all who wander are lost
Those look like the oldest leaves. They have served their purpose and continue to yellow until they drop off (or you cut them off) the plant. As long as you have new leaves, all is good.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
President: Orchid Society of Northern Nevada
Webmaster: osnnv.org