Capistrano Unified Pauses Pesticide Use Amid Childhood Cancer Concerns in Ladera Ranch
The Capistrano Unified School District in Orange County has halted routine pesticide applications for 60 days while reviewing approved products, after parents raised concerns about a cluster of rare childhood cancers in the Ladera Ranch community.
The Capistrano Unified School District announced a 60-day suspension of routine landscape chemicals, including herbicides and pesticide sprays, as it reviews the products currently approved for use on its campuses. The decision follows a large community meeting in Ladera Ranch where residents demanded answers about a reported cluster of rare cancers affecting children linked to the neighborhood.
Since 2007, nine children connected to Ladera Ranch have been diagnosed with Ewing sarcoma, a rare malignancy that primarily affects children and young adults. Families have suggested that long-term pesticide and herbicide use in the master-planned community could be a factor, although health officials have not identified an environmental cause.
The district said grounds crews will maintain properties during the pause through mechanical and manual weed removal and other preventive practices. A letter to families outlined the temporary halt and noted that the Board of Trustees will consider a resolution next week to require annual reviews of herbicides and pesticides and to explore safer alternatives. An FAQ document will be provided to explain the review process and proposed policy changes.
The pause mirrors a recent temporary suspension of certain landscape chemicals by the Ladera Ranch Maintenance Corporation, which also formed an advisory committee of homeowners and board members to examine its pest-management program. While officials did not directly link the pesticide review to the cancer cases, they acknowledged community concerns about landscaping products used in shared spaces.
"The Board has directed staff to implement a temporary 60-day pause on the routine use of certain landscape maintenance products used for weed management and plant growth regulation," the LARMAC statement read.
The issue has attracted attention at the federal level, reflecting broader public health concerns about potential links between pesticide exposure and rare cancers.