Progress 01/01/07 to 09/30/08
Progress Report Objectives (from AD-416) Investigate population dynamics of natural populations of Mexican fruit fly (Anastrepha ludens), serpentina fruit fly (A. serpentina), West Indian fruit fly (A. obliqua), and guava fruit fly (A. striata) on native and commercial host plants in Nuevo Leon and Tamaulipas, Mexico. Develop knowledge of how these populations threaten fruit production in subtropical agriculture in the United States. Test attractants for detection or eradication of these pests in the U.S. and Mexico. Approach (from AD-416) Populations of these species will be monitored by trapping and host fruit collection. Host plant lists will be determined by fruit collection in native forests and commercial orchards, with emphasis on foothill and mountain areas of Nuevo Leon. New baits will be developed in Weslaco, Texas, and tested on the native populations in traps and field trials of insecticidal baits. Optimal use of spray programs and bait station deployment will be determined in abandoned or non-productive orchards bordering areas of high native host plant populations. Significant Activities that Support Special Target Populations Baits were supplied to INIFAP scientists for testing bait stations in eastern Nuevo Leon, Mexico. Populations were surveyed in treated and control orchards. Performance of the bait was interpreted by the INIFAP scientists, and new tests were designed for 2009 to determine optimal station density. Results were reported in joint meetings during May 2008, and revisions were made in bait formulation. Joint meetings were held in August 2008 with Mexican producers to gain access to infested orchards for 2009 testing in the field. The cooperators provide the ADODR with required annual report of ongoing research progress of field trials. This research project will terminate on September 30, 2008. A new formal agreement with INIFAP will be created to initiate field trials during 2009-2011.