Animal and Plant Health Inspection Service (APHIS) has undertaken an insect eradication program using the neonicotinoid imidacloprid to prevent the further spread of Anoplophora Glabripennis, the Asian Longhorned Beetle in New York City (NYC). Trunk injections were applied in the high water table soils of Staten Island whereas soil injections were applied to the drier soils in Queens and Brooklyn. Imidacloprid levels were followed for six treatment years. Of the twenty+ susceptible species of trees treated, red maple, Acer rubrum, was chosen for study because it is highly attractive to honey bees (Apis mellifera) as a nectar and pollen source and it is plentiful in NYC. Imidacloprid partitioned mostly to the leaves (max = 104 ppb), moderately to flowers (max = 103 ppb), and least to pollen (max = 101 ppb). Imidacloprid expression in plant tissue varied with application method, tree sex, and treatment year. The presence of six metabolites was followed.

Movement of soil and trunk injected imidacloprid through the hardwood <i>Acer rubrum</i>

244th National Meeting (2012)

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Movement of soil and trunk injected imidacloprid through the hardwood Acer rubrum