Control Adequate tests for control of this insect have not been tested. Trees should be sprayed during the second or third week of June, preferably, but can be treated whenever the weevils are seen. Spray trunk, branches, and the foliage. There are reports in the literature that populations have built up into the thousands on occasion. There are no recent records of such outbreaks, although light infestations are relatively common in the southeastern part of the state.
Japanese weevil is known to be equally abundant northward to and including Long Island, New York.