Control of the nut borers is difficult. Egg parasitoids are present but they are not sufficiently effective especially early in the season. Collect and destroy unusable dropped nuts and husks regularly. No insecticides are at present registered for their control but, treatments to control stinkbugs will also reduce their numbers. Except where mentioned, no chemicals are registered for their control .
Heavy infestations can cause curling of leaves and malformation of branches and nuts.
This usually occurs when the natural balance between the pest and their natural enemies is upset by excessive spraying or the use of wide spectrum insecticides. Natural enemies will again control the mealybugs after the effect of the insecticide is canceled. Generally populations of these mealybugs reach a maximum in spring, after which numbers are reduced by natural enemies. If the latter are rendered ineffective by ants or pesticides, maximum numbers are reached in late summer and autumn. At least three overlapping generations occur per year.