February 16, 2015

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

Taken in the Vernalis area along the west side of Stanislaus County, today’s photos for the central region present the peaking bloom of the Nonpareil, the first open flowers of the Butte and an example of the overlap seen in a Nonpareil, Sonora and Wood Colony planting.

Patchy fog blanketed the central region at sunrise each morning during the period, but burned off quickly to reveal high, thin clouds and bright warming sunshine. Morning low temperatures were reported in the low to mid 40’s, while daytime highs reached into the low to mid 70’s. The foggy mornings did little to hamper the bee’s efforts over the weekend, only slightly delaying the start of their workday. As a result, observers reported from 6 to 7 hours of excellent activity in the foggier areas of the region, while areas with little to no early morning fog received from 7 to 8 hours of excellent activity.

Observers are reporting that bud development in the northern San Joaquin Valley is progressing at a very rapid pace, with many plantings in the region quickly approaching their peak bloom. The early blooming Sonora reached its peak condition over the weekend and has begun to shed a significant proportion of its petals. Nonpareil and many California type plantings are nearing their peak bloom, working in unison with the Monterey, with each of these important cultivars exhibiting excellent overlap. While the Carmel continues to trail the Nonpareil and California types, there is enough bloom now available to provide ample pollination opportunities in the region’s Nonpareil and Carmel orchards. The bloom of the Butte and Padre plantings is also making its presence known, with the first open flowers of these late-blooming varieties now making their appearance.

As may be seen in the photos accompanying today’s report, leaves in many orchards are already beginning to “push”. While some growers have expressed concern, these leaves are needed to support the developing nutlets after the flowers have been pollinated and the ovules fertilized.

While the past week has remained dry, morning fog and very heavy dew has translated into a high degree of moisture on the bloom for several hours each day. This excessive moisture can promote fungal development as easily as rainfall. As a result, sprayers could be heard throughout the night as growers worked to complete preventative fungicide treatments, as well as foliar nutrient applications while the bees remained safely in their hives.



High Temperature: 74°F
Low Temperature: 40°F
Wind: 2-5 mph
Rain: None
Sky Conditions: High thin clouds. Patchy fog burned off by 9:00 am
Bee Activity: 6-7 hours in foggy areas. 7-8 hours where clear.
Current weather at the National Weather Service
Jereme Fromm
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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