John Hanzas
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Development of a test design for a semi-field, colony-feeding study for the common eastern bumble bee (Hymenoptera: Apidae) Open
Ecological risk assessment is a key component of the regulatory process required for registration of crop protection products around the world. The western honey bee (Apis mellifera) is the model organism for pesticide risk assessments for…
Effectiveness of side-inlet vegetated filter strips at trapping pesticides from agricultural runoff Open
Agriculture can be a contributor of pollutants, including pesticides and excess sediment, to aquatic environments. However, side-inlet vegetated filter strips (VFSs), which are planted around the upstream side of culverts draining agricult…
View article: A field spray drift study to determine the downwind effects of isoxaflutole herbicide to nontarget plants
A field spray drift study to determine the downwind effects of isoxaflutole herbicide to nontarget plants Open
Spray drift buffers are often required on herbicide labels to prevent potential drift effects to nontarget plants. Buffers are typically derived by determining the distance at which predicted exposure from spray drift equals the ecotoxicol…
A refined ecological risk assessment for California red-legged frog, Delta smelt, and California tiger salamander exposed to malathion Open
The California red-legged frog (CRLF), Delta smelt (DS), and California tiger salamander (CTS) are 3 species listed under the United States Federal Endangered Species Act (ESA), all of which inhabit aquatic ecosystems in California. The US…