Crop Biosecurity and Emergency Management

Last Modified: May 01, 2024

APHIS' Plant Protection and Quarantine (PPQ) program safeguards U.S. agriculture and natural resources from the introduction, establishment, and spread of plant pests and noxious weeds.

Emergency Response and Management

As the lead Federal agency for plant health emergencies, PPQ works cooperatively with national and international plant protection organizations; Federal, State, Tribal, and local agencies; universities; industries; and private entities in developing and implementing science-based framework designed to provide optimum protection against invasive pests and diseases.

Pest Exclusion 

PPQ works with trading partners and international plant protection organizations to develop and implement early detection and control strategies designed to prevent the entry of invasive pests and diseases into the United States. In addition, PPQ partners with the U.S. Department of Homeland Security's (DHS) Customs and Border Protection (CBP) to ensure the continued success of agricultural inspection operations at all U.S. ports of entry. 


PPQ works with Federal agencies, State and local governments, and industries to prepare, build, and sustain operational capacity and capability including early detection, timely diagnostics, and effective control strategies against plant health threats and incursions. 


PPQ works with Federal agencies, State, Tribes, and local governments, and industries to implement coordinated actions designed to contain, control, or eradicate plant pests and diseases. PPQ uses the Incident Command System (ICS), which provides responding agencies and entities a unified strategy for working together in response to plant health emergencies.


After an emergency response is complete, PPQ works with Federal agencies; State, Tribal, and local governments; and the private sector to develop and implement systems designed to provide long-term stability and protection from the pest or disease that caused the emergency. Recovery includes plant health regulations, eradication, best management practices, and restoration plans.