Are yellow aphids bad?
Yellow aphids , specifically the yellow Carya illinoensis aphid and sinister margined aphid , are indeed consider to be high-risk for pecan tree . These tiny worm can cause significant damage to the tree and have a damaging impact on both product and nut case quality . One of the main ways these aphids make damage is through their course behaviour . They primarily feed on the underside of pecan leaves , sucking out the sap from the plant ....