An agriculture study that showed five times more canker lesions in young trees without CLM control than in trees with CLM control. In a mature grapefruit and lemons surveyed in July and August had an average of 79% of leaves with canker lesions directly associated with CLM damage.
To minimize the potential for fruit and foliage infection, pesticide applications need to be timed to significantly reduce CLM populations during the summer and early fall, Oswalt writes. “The primary window of opportunity to control CLM is 13 days after bud break of a new flush to 31 days after this bud break. Experience shows that this is much easier to do for the spring flush but becomes increasingly difficult as seasonal flushes continue through the growing season (summer and fall). Taken from, UFIFAS
