Pesticides Archives

NOTICE: Department of Pesticide Regulation Proposes regulations to update its groundwater protection list, identifying the pesticides with potential to pollute groundwater

May 17, 2025

From the Department of Pesticide Regulation: The California Department of Pesticide Regulation is accepting public comments on proposed regulations released...

USGS: Protecting protected land from pesticides

USGS

Ecosystems

May 9, 2025

Five Sacramento National Wildlife Refuges show pesticides By the USGS A new paper in Science of the Total Environment, co‑authored...

CAL MATTERS: Dangerous herbicide used on California crops banned

Cal Matters

Groundwater News

August 8, 2024

The chemical, used for decades, can harm babies’ developing brains. Farmworkers and people living near fields are most at risk....

SCIENCE SPOTLIGHT: Pharmaceuticals, pesticides, and contaminants of emerging concern in wastewater discharges to San Francisco Bay

Maven

Delta science Water quality

November 16, 2023

The issue of water quality in the Delta has become increasingly important in recent years. The drought has made the...

DELTA LEAD SCIENTIST REPORT: Effects of pesticides on species in the Delta; plus activities of the Delta Science Program

Maven

Delta science

November 30, 2021

At the November meeting of the Delta Stewardship Council during the Delta Lead Scientist report, Dr. Laurel Larsen spotlighted recent...

FEATURE: Agricultural Pesticides Accumulate in Fish Prey Species in the Delta

Elyse De Franco

Delta science

October 12, 2021

Written by Elyse DeFranco The toxic effects of insecticides sprayed on Delta farmlands don’t stop at the pests they seek...

ESTUARY PEARLS PART 3: Pesticides, HABs, New Neural Network, Ship Channel, Tule Red, Quake Risk Levees and more

Estuary News Group

Delta science Ecosystems

April 29, 2021

ESTUARY News sent reporters to the first virtual Bay-Delta Science Conference in April 2021. This special edition of Pearls shares...

AG ALERT: Water-quality monitoring focuses on prevention

Ag Alert

Water quality

January 6, 2021

By Bob Johnson, Ag Alert California Department of Pesticide Regulation scientists say they are shifting their water-quality efforts toward preventing...

STATE OF THE ESTUARY: An overview of Department of Pesticide Regulation’s Surface Water Protection Program

Maven

Notebook News and Features Water quality

November 21, 2019

Dr. Jennifer Teerlink discusses pesticide regulation, monitoring, assessments, and outreach efforts The mission of the California Department of Pesticide Regulation’s...