Bunch weights

Recording bunch weight in the Sectormentor app

Recording your bunch weights at harvest is an important way to improve your yield predictions. This gives you an average harvest bunch weight for each of your blocks, for more accurate yield predictions in future years. Keeping good bunch weight records allows you to develop a sense of variation between years, related to climatic conditions.

Sectormentor makes it easy to pull in bunch weights from previous seasons to the Yield Predictor tool, and to visualise how your bunch weights change each year in the Historical Bunch Weights tool.

You can also collect bunch weights at lag or veraison in Sectormentor, and add a multiplier in the Yield Predictor, in order to make yield predictions in the same year.

What to record

Record average bunch weight

Make notes: Anything interesting you’ve noticed!

Photos

Equipment

Your phone (with Sectormentor downloaded)

A portable scale (we’ve found hook scales work well!)

How to do the test

1. Head to the block where you want to find an average bunch weight, and select the same block in your Sectormentor app (either from your vineyard map, or by selecting from the block list).

2. Select random bunches from random vines (many people pick some high, some medium and some low bunches to get a good range) and weigh them using your scale.

3. Record the weights in Sectormentor, alongside any relevant notes or photos for observation. Remember to ‘Sync’ when you’re finished using your phone!

4. Once back at a computer, log in to Sectormentor and refer to the Historical Bunch Weights tool to see your average bunch weight per block. You can feed these bunch weights into the Sectormentor Yield Predictor, to improve your predictions in future years!