Open AccessEffects of Trunk-Injected Abamectin on the Elm Leaf Beetle
Author(s) -
Mark O. Harrell,
Philip A. Pierce
Publication year - 1994
Publication title -
arboriculture and urban forestry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 47
eISSN - 2155-0778
pISSN - 1935-5297
DOI - 10.48044/jauf.1994.001
Subject(s) - abamectin , hatching , larva , trunk , biology , leaf beetle , horticulture , botany , toxicology , agronomy , zoology , pesticide
Trunk-injected abamectin applied at the rate of 0.5 ml of 2% a.i. formulation for every 10 cm of trunk circumference effectively controlled the elm leaf beetle on Siberian elm. Treatments applied in May before hatching of firstgeneration larvae reduced defoliation levels in June and August. Foliage from treated trees remained toxic to elm leaf beetle larvae 83 days after treatment. Some phytotoxicity was observed around the treatment holes.