Establishment of Ageniaspis citricola (Hymenoptera: Encyrtidae) for Biological Control of Phyllocnistis citrella (Lepidoptera: Gracillariidae) In Florida

Authors

  • Mark A. Pomerinke
  • Philip A. Stansly

Abstract

The parasitoid Ageniaspis citricola (Hymenoptera: Encyrtidae), originally from Thailand and obtained from Australia, was released at 52 sites in Southwest Florida between May 1994 and September 1995 as part of a statewide program of biological control of citrus leafminer, Phyllocnistis citrella (Lepidoptera: Gracillariidae). Establishment and over-wintering was confirmed during spring of 1995 and 1996 in spite of frosts experienced during the previous winters. Parasitism from A. citricola at monitored groves increased from 2% in May 1994 to 86% in October 1995, apparently unhindered by native parasitoids. In contrast, apparent parasitism of citrus leafminer from endemic parasitoids fell from 30% to 2% during the same period. Wind-aided dispersal of A. citricola occurred in all directions and was documented to a maximum of 48 km from the nearest release point. A. citricola is now ubiquitous throughout the region and will probably remain a permanent component of the entomophagous complex using citrus leafminer.

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Published

1998-09-01

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Section

Literature Review Articles