HMC News – May 2020

Harvest has begun in our stone fruit orchards! At this point, the fruit is a little smaller than normal due to the decreased amount of time between bloom and harvest, and the timing is a little ahead of last year.  

It’s hot!  Last week we experienced rain and peak temperatures around 72°, this week’s record projected heat is as high as 109°. Grapes and stone fruit don’t like this heat any more than people. In stone fruit, extreme heat slows everything down and halts growth, causing some heat damage to the fruit – especially dark colored plums. In table grapes, any of the exposed berries not covered by foliage will burn.

A few months ago, we increased efficiency and eliminated the need for ladders by using platforms in our high density stone fruit orchards. Since then, we have started to experiment by attaching an artificial light to the same equipment to perform “night thinning.” Beginning before the sun comes up, crews are able to finish this crucial process in the cool morning hours. Going forward, we will modify our picking by transitioning this process into harvest, resulting in an optimal product by removing the afternoon heat. This is an efficient operation that benefits the workers and product by eliminating the summer heat.

We are moving rake wire in our table grape vineyards. This process opens up a wire in the middle of the trellis that helps guide and organize the canes and their growth to conform to the V shape of the trellis. There are multiple benefits of rake wire use. It helps get all of the clusters to hang out in the “fruiting zone” underneath the trellis, making maintenance and harvest more efficient. Sunlight is allowed in to hit the bottom of canes, which helps with fruitfulness in next year’s crop. A pocket forms for air to flow and escape, reducing chances of humidity getting trapped underneath the canopy.

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