February 25, 2015

This report covers conditions and observations made on Tuesday, February 24, 2015.

From top to bottom, the photos in today’s report illustrate the level of nutlet swelling in a Nonpareil orchard in the Woodland area, the nutlet development in the Aldrich variety in the Arbuckle area, and a Chico area grower applying water to his orchard as a measure of frost protection.

In contrast to recent days, the northern region enjoyed warmer daytime temperatures and significantly lower winds. Although temperatures rose to 70 degrees during the afternoon hours, early morning temperatures dropped as low as 27 degrees on the east side of the Sacramento Valley. Once exposed from the safety of their protective jackets, nutlets are highly susceptible to frost damage if exposed to the low temperatures for an extended period of time. As illustrated in today’s photos, growers with available water will irrigate their orchard floor to encourage warming the ambient temperature in the orchard. Although temperatures surrounding some orchards were observed as low as 27 degrees, the temperature inside orchards with running water was held around 33 degrees.

Once sunrise arrived, temperatures quickly rose, providing bees with nearly ideal conditions for pollination. Bees were observed working very actively in the Butte and Padre orchards, and put in six to seven good hours of activity. Warm temperatures and sunshine continue to promote movement from bloom to the jacket stage, and small amounts of nutlets are becoming more evident.

With the threat of stormy weather on the horizon, growers are keeping a close eye on Mother Nature and preparing to apply a second round of fungicide treatments.



High Temperature: 70°F
Low Temperature: 34°F
Wind: 5 mph
Rain: None
Sky Conditions: Clear
Bee Activity: 6-7 hours of good activity
Current weather at the National Weather Service
Ryan Christy
Dennis Meniberg

Click an image to enlarge it.

Bloom Status

VarietyDormantGreen TipPink BudPopcornBloomPetal FallJacketOut of Jacket

Data reflects a composite of the growing region.

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