1a. Objectives (from AD-416):
The objective of this project is to develop management strategies for organic growers based on: 1) habitat manipulation; 2) organic management tactics including barriers and OMRI-approved materials; 3) biological control; 4) establish mobility of the brown marmorated stink bug (BMSB) life stages; and 5) extension and outreach efforts.
1b. Approach (from AD-416):
We will focus our efforts on objective 4, establishing mobility of BMSB life stages. We will use flight mills interfaced with appropriate computer software to measure flight capacity of adults. We will use mark-release-recapture techniques to evaluate nymphal dispersal capabilities. In addition, we will establish the cues used by adults to select human-made overwintering sites.
3. Progress Report:
The brown marmorated stink bug (BMSB) has become a significant threat to U.S. agriculture since its introduction, causing severe losses for organic farmers in a wide variety of crops. Therefore, we will establish dispersal of BMSB lifestages and predictable movement patterns of those lifestages. Specifically, we have initiated studies to establish abiotic and biotic factors affecting flight capacity and nymphal dispersal using laboratory, semi-field and field studies. Trials will be conducted on local organic farms. We have found that BMSB adults have the capacity to fly over one mile within 24h and in some cases, more than 20 miles using lab-based flight mills. We also are developing approaches toward defining characteristics of human-made structures that serve as successful overwintering sites for adult BMSBs. These will include direct observations of BMSB arrival at overwintering sites during the peak dispersal period and sentinel shelters deployed in various locations to identify key factors for overwintering site selection.