Monitoring of brown stink bug (Hemiptera: Pentatomidae) population dynamics in corn to predict its abundanee using weather data  

作　　者：Xinzhi Ni Ted E. Cottrell G. David Buntin Xianchun Li Wei Wang Hong Zhuang 

机构地区：[1]USDA-ARS, Crop Genetics and Breeding Research Unit, Tifton, Georgia, USA [2]USDA-ARS, Southeastern Fruit and Tree Nut Research Laboratory, Byron, Georgia, USA [3]Department of Entomology, University of Georgia, Griffin, Georgia, USA [4]Department of Entomology, University of Arizona, Tucson, Arizona, USA [5]College of Engineering, China Agricultural University, Beijing, China [6]USDA-ARS, Quality and Safety Assessment Research Unit, Athens, Georgia, USA

出　　处：《Insect Science》2019年第3期536-544,共9页昆虫科学（英文版）

摘　　要：The brown stink bug (BSB), Euschistus servus (Say)(Hemiptera: Pentatomidae), is a serious economic pest of corn production in the southeastern United States. The BSB population dynamics was mon itored for 17 weeks from tasseling to preharvest of corn plants (i.e., late May to mid-September) using pheromone traps in three corn fields from 2005 to 2009. The trap data showed two peaks in early June and mid-August, respectively. The relationship between trap catch and pregrowing season weather data was examined using correlation and stepwise multiple factor regression analyses. Weather indices used for the analyses were accumulated growing degree day (AGDD), number of days with minimum temperature below 0℃(Subz), accumulated daily maximum (AMaxT) and minimum temperatures (AMinT) and rainfall (ARain). The weather indices were calculated with lower (10℃) and upper (35℃) as biological thresholds. The parameters used in regression analysis were seasonal abundance (or overall mean of BSB adult catch)(BSBm), number of BSB adults caught at a peak (PeakBSB), and peak week (Peakwk). The BSBm was negatively related to high temperature (AmaxT or AGDD) consistently, whereas IstPeakBSB was positively correlated to both ARain and Subz, irrespective of weather data durations (the first 4, 4.5, and 5 months). In contrast, the 7-month weather data (AGDD7) were negatively correlated to the BSBm only, but not correlated to the second PeakBSB. The 5-year monitoring study demonstrated that weather data can be used to predict the BSB abundance at its first peak in tasseling corn fields in the southeastern U.S. states.

关 键 词：Euschistus servus first TRAP CATCH peak PHEROMONE TRAP CATCH population dynamics stepwise regression modeling WEEKLY mean 

分 类 号：Q[生物学]