Strawberry – Grey mould (π˜‰π˜°π˜΅π˜³π˜Ίπ˜΅π˜ͺ𝘴)

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Crop(s) Strawberry
Disease(s) Grey mould (Botrytis)

 

Resistance management strategy for:

Group 2 Dicarboximide;
Group 7 Succinate dehydrogenase inhibitors (SDHI);
Group 7 + 3 SDHI + Demethylation inhibitors (DMI);
Group 7 + 11 SDHI + Quinone outside inhibitors (QoI);
Group 7 + 12 SDHI + phenylpyrroles (PP);
Group 9 Anilinopyrimidine (AP);
Group 9 + 12 AP + PP;
Group 17 Hydroxyanilide;
Group 19 Chitin synthase inhibitor;
Group 21 Quinoline inside Inhibitor (QiI), and
Group 52 (U) DHODHI-fungicide (dihydroorotate dehydrogenase inhibitor).

 

Guidelines

  1. Apply a program of protectant fungicides during flowering.
  2. Do not apply more than two consecutive sprays of Group 2, 9, 12, 17, 19 or 21 Continue alternation of Mode of Action between successive crops.
  3. Do not apply Groups 52 or 17 (solo) as consecutive applications, or more than 3 times per season.
  4. If using Group 17 with an effective mixing partner, or a different Group, do not apply the GroupΒ 17 containing mixtures for more than 50% of all applications.
  5. If applying Group 7 (including 7+3, 7+11 or 7+12) fungicides, do not apply more than two consecutive sprays before changing to another group. Do not apply more than three Group 7 sprays per season. If consecutive sprays are used, then use the same number of sprays of an alternative group before using another Group 7, including sprays in consecutive seasons.
  6. If three or fewer sprays are applied per crop, use only one spray containing a Group 9, 12 or 21 containing fungicide. Use a maximum of three sprays containing Group 9, 12 or21 containing fungicides, or 33% of sprays (whichever is lower). Where there are several cropping cycles per calendar year, a maximum of five (5) sprays containing Group 21 can be applied.
  7. Do not apply Group 19 fungicides more than 6 times per season, or more than 50% of the total number of sprays.
Β  2 7

7 + 3

7 + 11

7 + 12

 9

9 + 12

 12

12 + 7

12+ 9

 17

(solo)

 19 21 52
Maximum number of consecutive applications 2 2 2 2 1 1 2 2
Maximum number of sprays per crop/season 2-3 3

 

Or

1 in 3 (33%) whichever is lower

 3

 

Or

1 in 3 (33%) whichever is lower

 3

 

Or

1 in 3 (33%) whichever is lower

 3

 

Or

1 in 3 (33%) whichever is lower

 1 in 2 (50%) 6

 

Or

1 in 2 (50%)

whichever is lower

 3

 

Or

1 in 3 (33%) whichever is lower#

Where there are several crop cycles per year, up to a maximum of five (5) applications containing GroupΒ 21 can be applied.


Related fungicide Documents

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URL: https://croplife.org.au/resources/programs/resistance-management/strawberry-grey-mould-botrytis/
Content last updated: June 26, 2025

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

The information given in this strategy is provided in good faith and without any liability for loss or damage suffered as a result of its application and use. Advice given in this strategy is valid as at 26 June 2025. All previous versions of this strategy are now invalid.

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