February 16, 2015

This report covers conditions and observations made between Friday, February 13 and Sunday, February 15, 2015.

Today’s photos for the northern region present the rapidly declining bloom of the Winters variety and a down-the-row shot of the Nonpareil and Carmel, both in the Woodland area of Yolo County. Our final image shows a late-day fungicide treatment on a Nonpareil and Carmel planting in the Orland area of Glenn County.

High, thin clouds added a beautiful accent to the generally clear skies over the weekend, providing good support for Sacramento Valley’s bloom. Morning low temperatures were widely reported in the low to mid 40’s, with coldest locations dropping briefly into the upper 30’s. Temperatures warmed quickly each day, rising into the low to mid 70’s in nearly all valley locations. While nearly calm conditions prevailed on Friday and Saturday, breezes increased slight during the day on Sunday, reaching speeds of 10 to 15 mph at their greatest intensity. Bee flight operations were not impacted by the breezier conditions on Sunday and observers reported from 7 to 8 hours of very good to excellent activity on each day during the period.

Bud development in the Sacramento Valley has progressed quite rapidly over the past few days, pushing many of the region’s more advanced varieties and plantings past their peak bloom. The early blooming Sonora is now well beyond its peak bloom and has a significant proportion of its flowers in the petal fall and jacket stages. Peerless leads the Nonpareil, California types and Monterey, with advanced examples of each of these varieties now shedding petals aggressively and moving into the jacket stage. Observers have noted a wide degree of variation within the region. This is best demonstrated by the Carmel. While the Carmel, on average, is yet reach its peak bloom, advanced plantings have also begun shedding petals. This in contrast to the photos accompanying this report, showing Carmel plantings in the Woodland area of Yolo County that are just beginning to present their first flowers for pollination. This trait carries into the late blooming Butte and Padre, with some plantings showing very few flowers available and other orchards well into bloom.

Dry weather during the past week has allowed the region’s orchards to dry out nicely, following the previous weekend’s rainfall. Growers are watching their orchards closely for signs of fungal infections. As noted in previous reports, those with susceptible varieties have opted to treat their plantings to prevent infections from spreading.



High Temperature: 75°F
Low Temperature: 42°F
Wind: 5-10 mph. Gusts up to 15 mph.
Rain: None
Sky Conditions: High thin clouds.
Bee Activity: 7-8 hours of very good activity
Current weather at the National Weather Service
Ryan Christy
Dennis Meinberg

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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