Description : what is causing some of the leaves on my orange tree to turn yellow
Last Answer : You could so a liquid hand soap wash 1 teasp w 1 qt water mix and spray after the sun has gone down...........if that does not work... orange trees might be on Sevin's list of spraying for ... mask, goggles and gloves...do not spray on windy days. Keep children & pets away until the tree is dry.