Entomophaga (1995) 40, 321-327
M. Akalach and D.J. Wright (1995)
Control of the larvae of Conorhynchus mendicus (Col.: Curculionidae) by Steinernema carpocapsae and Steinernema feltiae (Nematoda, Steinernematidae) in the Gharb area (Morocco)
Entomophaga 40 (3-4), 321-327
Abstract: Two entomopathogenic nematodes, Steinernema carpocapsae and S. feltiae were evaluated in the laboratory and under field conditions against larvae of Conorhynchus mendicus, a pest of sugar beet in the Gharb area of Morocco. Nematodes were applied in an artificially infested field using a knapsack sprayer either during the day or in the evening after sunset. The number of insect cadavers recovered from both soil and sugar beet plants was greater in the treated plots compared with the untreated ones. The percent reduction in live larvae was significantly greater in the S. carpocapsae treated plots (89.5% and 59.5% for night an day application respectively) compared with those treated with S. feltiae (68.5% and 28% respectively). The efficacy of entomopathogenic nematodes was therefore increased by application at night particularly in the case of S. carpocapsae where control was maintained for 45 days.
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Link to article at publishers website
Database assignments for author(s): Denis J. Wright
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution