| temporal distribution of chaetocnema pulicaria (coleoptera: chrysomelidae) populations in iowa. | in 1999 and 2000, yellow sticky cards and sweep net samples were used to document the occurrence of an overwintering adult generation of chaetocnema pulicaria melsheimer, corn flea beetle, followed by two distinct populations peaks during the growing season in iowa emergence of the overwintering adult generation started in mid-april and continued until early june in both years, with populations as high as 45 +/- 7.9 per 10 sweeps. periods that ranged from 14 to 32 d were observed in 1999 and 200 ... | 2002 | 12216815 |
| trap height and orientation of yellow sticky traps affect capture of chaetocnema pulicaria (coleoptera: chrysomelidae). | field studies were conducted in iowa during 2001 and 2002 to determine the optimal sampling height and orientation for using yellow sticky cards to monitor populations of chaetocnema pulicaria melsheimer, the vector of the bacterial pathogen pantoea stewartii subsp, stewartii, the causal organism of stewart's disease of corn, zea mays l.. sticky cards were placed at five different heights (0.15, 0.30, 0.45, 0.60, and 0.90 m) and three orientations (horizontal, vertical, and 30 degree angle) at t ... | 2004 | 14998138 |