Whats causing the leaves of my citrus trees to be curled and crinkled?
Two Possibilities: (1)Citrus Leaf Miner Damage — This insect is the caterpillar of a tiny moth that lays eggs on the leaves. The caterpillars hatch from the eggs and “mine” their way through the leaves causing them to cup and crinkle. “Squiggly” lines can also be seen in the affected leaves. This insect is not harmful to the health or fruit production of established trees. Young citrus trees may benefit from sprays of horticulture oil which deters the moth’s ability to lay eggs on the leaf. Spray each time a new flush of growth appears. Read the label of oil products carefully, as horticulture oil can burn the leaves when applied. incorrectly. (2) Aphid Damage – Curled, distorted leaves can also be the result of aphid insects. These pests have needle-like mouthparts which pierce the leaves and feed on the plant sap. They always feed on the newest, most tender growth. As these leaves mature, they exhibit the damage, but by then the aphids are long-gone. Aphid damage is mostly aesthetic
