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Webinar Series: Pesticide Resistance Management

Lunch and Learn series for Ontario fruit, vegetable and specialty crops

Presented by OMAFRA horticulture specialists, Hannah Fraser – Entomologist, Katie Goldenhar – Pathologist, Kristen Obeid – Weed Management

This series on pesticide resistance management is to give field growers with fruit, vegetable and specialty crops a holistic view on pesticide resistance. We will cover basics of pesticide resistance then dive deeper into insecticide, herbicide and fungicide resistance and management.

Register in advance for this meeting:

After registering, you will receive a confirmation email containing information about joining the meeting. You will be able to attend all sessions. Sessions will start each day at 12:00 pm with a 30-minute presentation, followed by question and answer period.

Resistance 101

Monday, January 25, 12:00 – 1:00 pm

Topics include

  • impact of resistance
  • how resistance occurs
  • resistance drivers
  • mechanisms of resistance
  • challenges of resistance
  • foundations of resistance management
  • resources for success

Insecticide Resistance

Tuesday, January 26, 12:00 – 1:00 pm

Topics include:

  • 16,000 cases and counting
  • mechanisms of resistance in insects and mites
  • risk factors beyond your control
  • how agronomic practices can drive selection pressure
  • spraying by numbers: IRAC mode of action groups and your IPM program

Herbicide Resistance

Wednesday, January 27, 12:00 – 1:00 pm

Topics include:

  • mechanisms of herbicide resistance
  • herbicide risk – WSSA groups, low vs high risk products
  • weed risk – current resistant weed situation: focus on Amaranthus spp.
  • agronomic risk – practices that increase herbicide resistance risk
  • herbicide resistance management

Fungicide Resistance

Thursday, January 28, 12:00 – 1:00 pm

Topics include:

  • fungicide risk – FRAC groups, multi-site vs single site, low vs high risk products
  • diseases at risk – diseases at high risk, factors that increase resistance
  • agronomic practices that can decrease resistance risk
  • fungicide resistance management

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