newbie color texture problem

this is probably a simple problem but I looked through some tutorials and couldn’t find and anser. I mad a cylinder and put a wood texture on it and colored it brown, but only half of it is brown, the other half is green, I tried coloring the material brown but I’t doesn’t seem to help.

At the top of the colorband is a field marked “Cur” (current). Click right and left till you find the green then click Del(ete) or change the color.

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thanks