We have leggie potatoes( they are tall and dont have much leaves along stem) also they are about a foot and a half tall and only 5 weeks old!! thy are planted at the end of my garden and have a pecan tree above them, I was wondering if the pecan tree is giving off something that is not good for the growth of the potato plant. I do know about the walnut trees root system not being so good on vegy plants but does this also pretain to the pecan tree? please help!