We conducted field trials to evaluate the ability of a garlic juice-based product to control or suppress nymphal activity of the blacklegged tick, Ixodes scapularis Say, at residential properties in Connecticut in 2009, 2010, and 2011. The product was applied at a rate of 0.2 g AI/m2. Percent control of nymphal densities achieved by the spray treatment at 6, 11, and 18 d postspray for the 3 yr was 37.0, 59.0, and 47.4%, respectively. Differences between nymphal densities were greatest during the first post-spray sampling period. While garlic may require multiple applications for the suppression of tick activity, this product could provide a minimal-risk option for the short-term control of nymphal I. scapularis in the residential landscape.
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Vol. 52 • No. 4