Resistance Management Strategy for:

  • Group 3 (DMI);
  • Group 11 (Quinone outside Inhibitor); and
  • Group 9 (Anilinopyrimidine) fungicides;

FAR NORTH QUEENSLAND

  1. De-leafing must be conducted in accordance with industry guidelines.
  2. Apply a regular schedule of protectant sprays.
  3. When disease potential is high, apply a maximum of two consecutive Group 3 sprays before changing to a fungicide of a different activity group.
  4. DO NOT apply more than six Group 3 sprays in any 12 month period.
  5. DO NOT apply any Group 3 sprays in the months of June, July, August and September DO NOT apply more than two Group 11 sprays in any 12 month period.
  6. Group 11 fungicides should be applied in mixture with another fungicide from a different activity Group registered for the control of Yellow Sigatoka at the full registered rate.
  7. DO NOT apply consecutive sprays of Group 11 fungicides.
  8. Apply a minimum of two sprays from a different activity group between sprays of a Group 11 fungicide.
  9. DO NOT apply Group 11 sprays in the months of May, June, July, August and September.
  10. DO NOT apply more than six Group 9 sprays in any 12 month period.
  11. DO NOT apply more than two consecutive sprays of Group 9 fungicide before changing to a fungicide of a different activity group.  When using consecutive applications of Group 9 fungicides, follow with at least as many different activity group fungicides before resuming with a Group 9 fungicide.

Chemical Group

Max. number of Applications/year

Max. number of consecutive sprays

Restricted

(no-spray) periods

Group 3

6 (& no more than 2 of 3 sprays)

2

June  to September inclusive

Group 11

2 (& no more than 1 of 3 sprays)

Not allowed

May to September inclusive

Group 9

6 (& no more than 2 of 4 sprays)

2

No restriction

Everywhere except Far North Queensland

  1. When using Group 3 fungicides, apply a maximum of two consecutive Group 3 sprays before changing to a fungicide of a different activity group.
  2. DO NOT apply more than five Group 3 sprays in any 12 month period.
  3. DO NOT apply more than four Group 11 sprays in any 12 month period.
  4. DO NOT apply consecutive sprays of Group 11 fungicides.
  5. Apply a minimum of two sprays from a different activity group between sprays of a Group 11 fungicide.
  6. DO NOT apply more than five Group 9 sprays in any 12 month period.
  7. DO NOT apply more than two consecutive sprays of Group 9 fungicides before changing to a fungicide of a different activity group.  When using consecutive applications of Group 9 fungicides, follow with at least as many different activity group fungicides before resuming with a Group 9 fungicide.

Chemical Group

Max. number of

applications/year

Max. number of

consecutive sprays

Group 3

5 (& no more than 2 of 3 sprays)

2

Group 11

4 (& no more than 1 of 3 sprays)

Not allowed

Group 9

5 (& no more than 2 of 4 sprays)

2


CropLife Australia’s Resistance Management Strategies provide a guide for crop protection product rotation through product groups.  The strategies are a useful tool that supports farmers’ adoption of resistance management.

All crop protection products must be handled and applied strictly as specified on the product label or APVMA permits.  These Resistance Management Strategies do not replace product labels.  They are a guide only and do not endorse particular products, groups of products or cultural methods in terms of their performance.  It is important to check with the Australian regulator’s (APVMA) product database for contemporary information on products and active constituents.  The database can be sourced through www.apvma.gov.au