S11 E10 - PPO Resistant Kochia: From Field Failures to the Lab

About this episode

The episode discusses the emergence of PPO resistant kochia and its implications for weed management.

In this episode of the War Against Weeds podcast, Sarah Ganske and Joe Ikley explore the emergence of PPO resistant kochia across the northern Great Plains. Joined by BASF scientists Dr. Ingo Meiners and Dr. Aimone Porri, the group walks through how field failures led to greenhouse confirmation and the discovery of novel PPO target‑site mutations. They discuss why these mutations affect some PPO herbicides but not others and how the findings are already shaping resistance diagnostics and management decisions. They end the episode with practical guidance for growers and a broader look at the importance of collaboration in tackling evolving weed resistance challenges.

People in this episode

Host: Sarah Lancaster

Guests: Sarah Ganske, Joe Ikley, Dr. Ingo Meiners, Dr. Aimone Porri

Topics covered

• PPO resistance
• kochia
• weed management
• herbicide mutations
• collaboration in agriculture

Keywords

• PPO resistant kochia
• herbicide resistance
• field failures
• greenhouse confirmation
• target-site mutations

Mentioned in this episode

Places: northern Great Plains

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• S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster · April 15, 2026 · 26 min
• S11 E9 - Glufosinate Resistance in Waterhemp: What We Know (and What Comes Next) · April 1, 2026 · 38 min
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