New label changes will alter how fipronil is applied by pest management professionals (PMPs) in urban environments, particularly between November and February, during California's typical rainy season.
Concerns over continued detections in urban watersheds of fipronil, a broad-spectrum insecticide commonly used against ants and other pests, led to the U.S. Environmental Protection Agency (EPA) and the California Department of Pesticide Regulation (DPR) asking companies to modify the labels of liquid formulations of fipronil to reduce negative impacts of this pesticide on the environment. These use restrictions apply to surface applications along foundation perimeters of structures.
Pre- or post-construction...
[From the Spring issue of the UC IPM Green Bulletin]
Argentine ants can be a damaging ant pest species in both agricultural and urban environments in California. Outdoors, they disrupt biological control by tending honeydew-producing pests and protecting them from natural enemies. Argentine ants are also common invaders of urban residential settings, making them the nuisance ant species most often treated by pest management professionals (PMPs).
Contact insecticide sprays are frequently used control options for Argentine ants due to practical advantages, such as easy application and.../span>