Systemic Insecticide and Gibberellin Reduced Cone Damage and Increased Flowering in a Spruce Seed Orchard

Author： Rosenberg O.   Almqvist C.   Weslien J.  

Publisher： Entomological Society of America

ISSN： 1938-291X

Source： Journal of Economic Entomology, Vol.105, Iss.3, 2012-06, pp. : 916-922

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