Recent News The future of monarch butterflies 3 Sep 2025September 3, 2025 Written by Michael Adu-Brew, Jillian Stewart, Michael Zhao, and Niranjana Krishnan. My students/staff and I co-wrote this piece back in January 2025, soon after the U.S. Fish and Wildlife Service…
Special Topics What to Know Before Applying Pesticides in Your Garden 11 Aug 2023 Featured image: Before using a pesticide, read the label. Image source: Oregon Department of Agriculture, CC. This post was originally published in Maryland Grows Blog. You have a pest problem in your garden…
Recent News Maryland Pesticide Newsletter 20 Mar 2023September 3, 2025 I recently started as an assistant professor in the Department of Entomology at the University of Maryland, College Park. As part of my extension duties, I am serving as Maryland's…
Recent News Pesticide updates from the EPA 27 Nov 2022February 3, 2023 The EPA Office of Pesticide Programs (OPP) regularly shares updates via this link (you can also sign up for updates). Over the last three months, the OPP tackled multiple issues,…
Recent News EPA’s plan to keep up with ESA 22 Apr 2022April 30, 2022 Workplan reference: https://www.epa.gov/endangered-species/epas-workplan-and-progress-toward-better-protections-endangered-species#workplan Feature image: https://www.epa.gov/endangered-species The EPA recently announced that it will evaluate the potential effects of all new pesticide active ingredients on federally endangered or threatened (i.e., listed)…
Basics of Toxicology Designing good ecotoxicology studies 17 Nov 2021November 17, 2021 Featured image: A conceptual model to explain how monarch butterflies could be exposed to insecticides used in Midwest agriculture. Figure obtained from Krishnan et al. (2021). As an insect toxicologist,…
Special Topics Can exposure to insecticides impact monarch butterfly conservation? 24 Jun 2021December 29, 2021 Featured image: Monarch caterpillar photo was taken by Aaron Eckley at Iowa State University. This was originally published by Iowa Monarch Conservation Consortium: https://monarch.ent.iastate.edu/can-exposure-insecticides-impact-monarch-butterfly-conservation. The question posed in the title…
Special Topics Discovery of a novel neonicotinoid insecticide effect 30 Jan 2021December 29, 2021 Featured image was taken from Wikimedia commons: https://commons.wikimedia.org/wiki/File:Lepidoptera_Diversity.jpg This article (slightly edited below) was published in Department of Entomology newsletter at Iowa State University: https://www.ent.iastate.edu/department-entomology-alumni-news-2021 Niranjana Krishnan writes: I started…
Tox21 STEPping into the world of computational toxicology 21 Nov 2020December 29, 2021 Featured image was obtained from Wikimedia Commons and is licensed under the Creative Commons Attribution-ShareAlike 4.0 License. This report was provided to the Society of Toxicology following my selection as…
Recent News Are everywhere chemicals contributing to lifestyle diseases? 30 Jan 2020December 29, 2021 Featured image: Some phthalates have been banned in children’s toys like these. Image source: Wikimedia commons This post was originally published in Envirobites Article: Radke EG, Galizia A, Thayer KA, Cooper…
NAS reports Assessing risk to endangered species 5 Jan 2020February 24, 2022 Featured image: The Golden Toad was last recorded in 1989. Source: U.S. Fish and Wildlife Service (obtained from Wikimedia Commons) The “Assessing Risk to Endangered and Threatened Species from Pesticides”…
NAS reports Science and Decisions 2 Nov 2019February 9, 2020 The “Science and Decisions: Advancing Risk Assessment” National Academy Sciences (NAS) report was released in 2009. The report can be read or downloaded here for free: https://www.nap.edu/catalog/12209/science-and-decisions-advancing-risk-assessment. All images used…
EnTox Simplified 