EVALUATION OF BLUE-GREEN SHARPSHOOTER FLIGHT HEIGHT

• Author(s): Weber, Ed;
• Abstract: Flight heights of blue-green sharpshooters (BGSS) were monitored in the Napa Valley from March through September 2004 and 2005 using pole towers to position yellow sticky cards at heights up to 24 feet. Towers were located adjacent to vineyards at the edge of a riparian zone. Eleven towers were monitored in 2004 and twelve in 2005. Overall trap catches in 2004 were considerably greater than in 2005. For the March-May period, 99% of the catches were made at 15 feet or lower in 2005. For this period in 2004, 76% of the catches were made at 15 feet or lower. This figure increases to 88% with the exclusion of data from one tower in early March (discussed below). These data support the possible use of screen or natural barriers to reduce the number of BGSS entering vineyards in the spring.
• Publication Date: Dec 2005
• Journal: 2005 Pierce's Disease Research Symposium