Uploaded July 2026 | Updated September 2026, 1 week ago

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"I haven't sprayed insecticide on this block in at least 3 years."

Plants have immune systems, and healthy trees can resist diseases and insects: even the fearsome filbertworm.

Dan Brown shares how he has reduced and even eliminate pesticides, while not having insect problems.

Learn more about insect resistance in the Plant Health Pyramid: loom.ly/7rPcMnw