Abstract
SummaryThe dispersion pattern of the citrus blackfly (CBF)Aleurocanthus woglumi Ashby on urban citrus trees was studied in southern Florida. There was no usable correlation (r2=0.41) between the % of older leaves infested with CBF versus that on the newest mature flush, but there was a strong correlation (r2=0.87) between the % of leaves in the newest mature flush infested with CBF and loge, where is the number of egg spirals of CBF/leaf on the same leaves. CBF egg spirals are distributed among the flushes in groups rather than singly and the flushes are not over‐dispersed. Visual surveys proved superior to sticky traps for the detection of CBF at low densities (<5% leaves infested) on citrus trees in an urban setting. A sampling procedure is described herein based upon visual surveys.
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