Tuesday, December 11, 2001 -
D0487

Seasonal flight activity of barley yellow dwarf virus vectors in north Alabama

Susan E. Halbert1, Kathy L. Flanders2, Hendrik W. van Riessen3, and Paul L. Mask2. (1) Florida Department of Agriculture & Consumer Services, Division of Plant Industry, P.O. Box 147100, Gainesville, FL, (2) Auburn University, Department of Entomology and Plant Pathology, 208 A Extension Hall, Auburn, AL, (3) Auburn University, Department of Agronomy and Soils, 110 Extension Hall, Auburn University, AL

A suction trap was placed near Guntersville, AL during 3 wheat growing seasons. This area was chosen because of historically high levels of barley yellow dwarf in wheat. Many species of aphids were recovered. The most common vectors of barley yellow dwarf virus were bird cherry-oat aphid, Rhopalosiphum padi; rice root aphid, Rhopalosiphum rufiabdominalis; English grain aphid, Sitobion avenae; and Tetraneura nigriabdominalis. Greenbugs, Schizaphis graminum, were also collected but are not known to vector the most prevalent strains of barley yellow dwarf in Alabama. The most common aphid species collected in the trap was Capitophorus hippophaes. Several aphid species were new state records, including Hyperomyzus carduellinus and Shivaphis celti.

Species 1: Homoptera Aphididae Rhopalosiphum padi (bird cherry-oat aphid)
Species 2: Homoptera Aphididae Rhopalosiphum rufiabdominalis (rice root aphid)
Species 3: Homoptera Aphididae Tetraneura nigriabdominalis
Keywords: suction trapping, virus vectors

The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA