Protection of Individual Ash Trees from Emerald Ash Borer (Coleoptera: Buprestidae) with Basal Soil Applications of Imidacloprid

We conducted field trials at five different locations over a period of 6 yr to investigate the efficacy of imidacloprid applied each spring as a basal soil drench for protection against emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae). Canopy thinning and emerald ash borer...

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Bibliographic Details
Published in:Journal of economic entomology 2010-02, Vol.103 (1), p.119-126
Main Authors: Smitley, D. R, Rebek, E. J, Royalty, R. N, Davis, T. W, Newhouse, K. F
Format: Article
Language:English
Subjects:
Agrilus
Agrilus planipennis
Animals
appearance (quality)
application rate
Biological and medical sciences
borers
Branches
Buprestidae
Canopies
Coleoptera
Coleoptera - drug effects
Control
Data processing
diameter
field experimentation
Fraxinus
Fraxinus - parasitology
Fundamental and applied biological sciences. Psychology
Generalities
golf courses
HORTICULTURAL ENTOMOLOGY
Imidacloprid
Imidazoles - pharmacology
Insect Control
insect pests
Insecta
Insecticides - pharmacology
Invertebrates
larvae
Neonicotinoids
Nitro Compounds - pharmacology
nursery crops
ornamental trees
pesticide residues
Phytopathology. Animal pests. Plant and forest protection
plant damage
plant pests
Protozoa. Invertebrates
Regression analysis
residual effects
Soil
soil drenching
street trees
Surface area
Thinning
tree age
Trees
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Summary:We conducted field trials at five different locations over a period of 6 yr to investigate the efficacy of imidacloprid applied each spring as a basal soil drench for protection against emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae). Canopy thinning and emerald ash borer larval density were used to evaluate efficacy for 3–4 yr at each location while treatments continued. Test sites included small urban trees (5–15 cm diameter at breast height [dbh]), medium to large (15–65 cm dbh) trees at golf courses, and medium to large street trees. Annual basal drenches with imidacloprid gave complete protection of small ash trees for three years. At three sites where the size of trees ranged from 23 to 37 cm dbh, we successfully protected all ash trees beginning the test with
ISSN:0022-0493
1938-291X
0022-0493
DOI:10.1603/EC09137