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June 1998, Volume 19 No. 2

Editorial

New alien pest problems continue to provide challenges for biological pest management, as is shown in our review article in this issue on western corn rootworm, a serious American pest of maize which has very recently found its way into Europe during the recent war in former Yugoslavia. Our other review article reveals that inadvertent introductions are not just restricted to pests - a surprising 79% of introduced natural enemies of insect pests in New Zealand are apparently accidental introductions! Elsewhere in this issue we examine the growing debate on the value of transgenic crops in pest management and review recent developments in biological control of Africa┬Ěs worst weed, Striga.

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