Developing Low Risk Management Strategies for Argentine Ants (Hymenoptera: Formicidae)

作者：Klotz John H^*; Rust Michael K; Greenberg Les; Robertson Mark A

来源：Sociobiology, 2010, 55(3): 779-785.

• Argentine ants
• ant control
• fipronil
• metaflumizone

Perimeter treatments with Termidor were evaluated for efficacy in reducing outdoor infestations of Argentine ants around homes in southern California. Treatments were applied according to the amended Termidor label restrictions, accepted by the California Department of Pesticide Regulation in 2009, limiting applications to the structure and not more than one foot away. The two variables of interest in this study were (1) volume of insecticide applied (either 1 or 0.5 gallons), and (2) nozzle setting on a compressed air sprayer (either for a fan spray or pin-stream application). These two variables were chosen with the goal of reducing the amount of insecticide applied and mitigating insecticide runoff. Most effective was the one gallon pin-stream application: an 85% reduction of ants near the house, and 63% reduction in the yard, 6 wks after treatment. In comparison, the one gallon fan spray application was much less effective over the same time period: 46% reduction near the house and 29% reduction in the yard. Even less effective was the 0.5 gallon pin-stream application, which did not result in sufficient reductions of ants. The 0.5 gallon fan spray, however, provided 60% reduction of ants near the house two months after treatment but no reduction in the yard. A combination treatment of a perimeter application of Termidor with granular metaflumizone bait broadcasted outside the spray zone provided the greatest ant reduction (86%).

• 出版日期2010