Module 1: Biology, symptoms, and Diagnosis
Module 3: Phytophthora ramorum
Welcome Module 2: Disease Management Conclusion Take the Exam Further Information

Disease Triangle

Water Management

Cultural control


Practice Questions


Disclaimer: The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products implies no endorsement by the authors. Criticism of products or equipment not listed is not implied or intended. Due to continually changing laws and regulations, we can assume no liability for the suggested use of chemicals contained herein. Pesticides should be applied according to the label directions on the pesticide container.

Chemical Control

Chemicals are used to help supplement—not take the place of—all the other management techniques such as water management, clean stock, sanitation, and planting resistant hosts.

Chemical techniques are used to eradicate Phytophthora from production equipment, water, and soil. Other chemicals are used to protect plant tissues from infection or to inhibit further growth of the organism inside plant tissues.

Integrating several techniques should help prevent losses due to Phytophthora diseases.

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