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Association of levee vegetation to rice water weevil (Coleoptera: Cuculionidae) infestation in California rice

Author:
Palrang, A.T., Grigarick, A.A., Oraze, M.J., Hesler, L.S.
Source:
Journal of economic entomology 1994 v.87 no.6 pp. 1701-1706
ISSN:
0022-0493
Subject:
Oryza sativa, Lissorhoptrus oryzophilus, insect control, cultural control, weed control, rice, flooded conditions, edge effects, California
Abstract:
The association between levee vegetation and rice infestation level by the rice water weevil, Lissorhoptrus oryzophilus Kuschel, was evaluated in California's Sacramento Valley. Fields with vegetated versus bare levees were compared for adult weevil infestation during the spring flight period. Lower infestations were associated with bare levees at 13 of 15 locations from 1990 to 1992. Weevil infestation remained below the recommended treatment level at 8 of 15 bare levee sites, but only 1 of 15 weedy levee sites.
Agid:
1392736