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Arboriculture & Urban Forestry Online
Volume 27, Issue 5 — September 2001

Application of Systemic Insecticides in Relation to Boxwood Leafminer's Life History    (View PDF)

Gabriel d'Eustachio and Michael J. Raupp

Abstract: We describe the life cycle of boxwood leafminer (Monarthropalpus jlavus) in the mid-Atlantic region of the United States in relation to growing degreeday accumulations. In addition, the efficacy of three systemic insecticides (avermectin, imidacloprid, and acephate) for control of the boxwood leafminer were evaluated. Avermectin and imidacloprid applied at adult flight provided excellent control. Imidacloprid applied in the summer when larvae were present in leaves gave good control of larvae. Avermectin and acephate were ineffective when applied in the summer.

Keywords: Boxwood leafminer; Monarthropalpus flavus; American boxwood; Buxus sempervirens 'Arborescens'; degree-days; monitoring; systemic insecticides; avermectin; imidacloprid; acephate.

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