Development of mating disruption for control of pine sawfly populations |
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Authors: | Olle Anderbrant Jan Lfqvist Hans-Erik Hgberg Erik Hedenstrm |
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Institution: | (1) Department of Ecology, Animal Ecology, Lund University, Ecology Building, 223 62 Lund, Sweden;(2) Department of Plant Protection Sciences, Swedish Agricultural University, Ecology Building, 223 62 Lund, Sweden;(3) Chemistry, Department of Science and Engineering, Mid Sweden University, 851 70 Sundsvall, Sweden |
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Abstract: | Mating disruption of the pine sawflyNeodiprion sertifer (Geoffroy) (Hymenoptera: Diprionidae) was strongly indicated by reduced male trap catches in pine plantations permeated with
the sex phermone, (2S, 3S, 7S)-diprionly acetate. The trap catch reduction was 95 to near 100% when dispensers every 10 m were used, giving a total release
of about 3 mg per hectare and day. Two mg of pheromone per cotton roll dispenser maintained low catches for the whole season
(about 2 months) without any renewal of disruption dispensers. Anerythro-mixture was as effective as the pure pheromone isomer. The effects of the experiments on population density and sex ratio
were not possible to investigate, due to a general collapse of the population, also outside experimental plots, the year after
the experiments. |
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Keywords: | Neodiprion sertifer pheromone pest management population suppression |
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