作者: FAC Silva , JJ Da Silva , RA Depieri , Antônio Ricardo Panizzi , None
DOI: 10.1007/S13744-012-0061-9
关键词:
摘要: Greenhouse and laboratory studies were conducted to evaluate feeding activity superficial damage soybean seed by the brown-winged stink bug, Edessa meditabunda (F.), Neotropical brown Euschistus heros (F.). Soybean plants (cv. BRS 282), at R6 stage of development used. Thirty pairs each species used individually for 48 h. Two daily observations (9:00 AM 3:00 PM) taken record number bugs (feeding/resting) on plant parts. Harvested seeds imbibed in tetrazolium solution photographed measurement damaged surface. Adult E. significantly preferred stems (19.7 bugs) pods (2.7). Feeding/resting was similar 9:00 (mean 28.0 PM (24.3). equally fed/stayed (7.3 (6.9), although most (12.3) remained cage net; feeding/resting all structures amounted 13.7 17.7 PM. Amylase greater (41.61 ± 0.89 U/mg) almost none (2.35 0.14 U/mg). The (22. 9 mm2) compared (12.5 mm2). However, caused less shrinkage tegument, while deeper showed reduction size.