Most often, the culprit turns out to be Citrus Leafminer. If citrus leaves are twisted, crumpled, and deformed, the most likely cause is Citrus. Leafminer, but see the table below for more information on these two pests. Honeydewâsecreting pests include various soft scales, mealybugs, aphids, and some others, most of which are protected by ants. One of the best prevention. methods is to exclude ants from the canopy of the tree.