Avocado Monitoring - Citrus Monitoring - Flower Monitoring - Monitor Training
"Working for the Grower"
This block has only 27 fruit sites, therefore 100 shoots should be monitored on a 10 tree block. To calculate percentages for Leafroller on fruit, use the same calculation as for GHT. If you find insufficient fruit sites, (e.g. 10 fruit sites) then use the LR found on shoot sites for your threshold percentage.
To calculate Leafroller, Thrip and Scale found on fruit: divide 100 by number of fruit sites found for LR and GHT or individual fruit found for Scale and multiply by number of insect sites found. E.g. 100/27x7=26% for LR and GHT or 100/54x1=1.8% for Scale on fruit.
For blocks over 10 trees, total your findings and divide by the multiples of 10 you have done to get 100%. E.g. a 20 tree block that has 12 Leafroller will be divided by 2 to give you 6%. A 30 tree block will have your 12 Leafroller divided by 3 to give you 4%.