Case Study Update: Kirup WA – mite monitoring paying off

Grower name: Terry Martella, B Martella & Sons
Location: Kirup, WA
What are the main IPDM issues being focussed on? Mites, ADB, weevils, mealybug, powdery mildew (influenced by netting), and looper. Action Plan includes:

·        Consider replacing Klartan against ADB.

·        Investigate use of cumulative leaf infested days (CLIDs) instead of mites/leaf or percentage leaves infested to determine the need to spray mites

What are you doing currently with IPDM? Resistance program based on activity groups

Monitoring mites and mealybug.

Adjusting monitoring so that we can record mites/leaf and infested leaves at the same time which will allow us to compare mites/leaf and Cumulative Leaf Infested Days.

What has worked well? What hasn’t? Having a season-long plan rather than just reacting ad hoc to monitoring results. Mite monitoring generally paying off because it allows observation of predators.
What would you do differently next time? Too early to say.
Any interesting learnings? Understanding that interactions occur between most activities helps to determine potential causes of problems before they occur. This then feeds into the season-long plan.


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