GENETIC IMPROVEMENT OF MAIZE AND PEARL MILLET FOR RESISTANCE TO INSECTS AND AFLATOXIN
Location: Crop Genetics and Breeding Research
Title: Stink bug genera and the role of sensory modalities: a still cloudy picture of functions and behaviors
Submitted to: Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: May 29, 2008
Publication Date: November 19, 2008
Citation: Ni, X., Cottrell, T.E., Mizell, R., Aldrich, J.R., Khrimian, A., Tillman, P.G., Buntin, D. 2008. Stink bug genera and the role of sensory modalities: a still cloudy picture of functions and behaviors. Entomological Society of America Abstract No. 1047.
Interpretive Summary: not required
Pheromone traps were used to monitor seasonal and diurnal population dynamics of the brown stink bug, Euschistus servus, and southern green stink bug, Nezara viridula, in corn, cotton, and pecan fields to provide valuable basic insect biology information for farmers to select the best time for insecticide spraying in corn, cotton, and pecan fields. Three one-acre corn fields were monitored between May and September for four years. The weekly seasonal monitoring of brown stink bug population dynamics showed that the brown stink bug had two peaks (in late May and early August, respectively) in corn field. The spatial distribution patterns (i.e., edge versus inside of a field) of both sexes among the ten traps within a corn field was also examined. The diurnal trap capture was also examined by either mark and release or monitoring pheromone trap captures throughout a day both inside and out of a corn field. The mark-release data in 2005 using pheromone trap for recapture in the same field showed little success. A 3-d trap capture within a corn field in 2005 showed that more stink bugs were captured in the afternoon than in the morning. In contrast, in early June of 2008, 10 pheromone traps setup between rye and corn fields were monitored continuously for 6 d for dispersal behavior among crops. The 6-d monitoring data showed that most insects were captured either in the early morning or in the evening, which suggested that major dispersal was likely to be in either evening or early morning. The pheromone trap monitoring data suggested that the best insecticide spraying to target insect movements should be in late May to early June either in the early morning or in the late afternoon.