Impact of trap architecture, adjacent habitats, abiotic factors, and host plant phenology on captures of plum curculio (Coleoptera: Curculionidae) adults.
Pyramid traps, 2.44 m and 3.66 m in height, were compared with standard-sized pyramid traps, 1.22 m in height, to assess the impact of trap architecture on captures of adult plum curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), in two apple (Malus spp.) orchards and a blueberry (Vaccinium spp.) planting. The effects of adjacent habitat (organic orchard versus wooded areas), abiotic factors, and phenological stages of apple also were assessed to determine whether these variables influenced trap captures. Standard-sized pyramidal traps captured significantly more adults than larger trap variants. In the apple orchards, most adults (70-80%) were captured before petal fall with the exception of blocks adjacent to the organic orchard (25%). Significantly more adults were captured along the edge of an apple orchard (managed using an integrated pest management strategy) facing an organic apple orchard (76%) than along the edge facing wooded areas (24%). There was a significant positive correlation between daily trap captures and mean daily temperatures before petal fall in apple orchards.
Lafleur
Gérald
G
Institut de Recherche et de Développement en Agroenvironnement, 3300 Sicotte Street, P.O. Box 480, Saint-Hyacinthe, Quebec, Canada J2S 7B8. gerald.chouinard@irda.qc.ca
Chouinard
Gérald
G
Vincent
Charles
C
Cormier
Daniel
D
D000818:Animals; D029798:Blueberry Plants / Q000254:growth & development / Q000469:parasitology; D001517:Coleoptera / Q000502:physiology*; D017753:Ecosystem; D007300:Insect Control / Q000379:methods*; D027845:Malus / Q000254:growth & development / Q000469:parasitology; D013696:Temperature; D014887:Weather