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Citrus leaves curl and turn brown or black within a few days of frost or freezing, Jack Kelly Clark, UC IMP Program
The Real Dirt: Article

Frost Protection for Citrus

January 14, 2022
Freezing temperatures damage plants by causing ice crystals to form in their cells. Frost-damaged vegetation withers and turns a dark brown or black. Ice crystals can also form in citrus fruit, causing juice vesicles inside the fruit to rupture and the fruit to dry out.
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The mud dauber wasp, Sceliphron caementarium, sporting its "wasp waist." (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Who Wants a Wasp Waist?

January 13, 2022
By Kathy Keatley Garvey
"Around 250 million years ago, at the start of the Triassic period, a species of insect evolved to have a narrow waist, called a petiole. This adaptation allowed greater flexibility and maneuverability of the ovipositor, the tubular structure on the female's rear used to deposit eggs.
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mandarin breakdown peel
Topics in Subtropics: Article

Satsuma Rind Breakdown

January 13, 2022
By Ben A Faber
Although you never know about the weather, we do know that if heavy rain occurs after color break in mandarins there can be significant rind breakdown. This problem can destroy much of the crop and the problem is largely preventable.
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Three red cherries hanging from a tree with green leaves.
The Stanislaus Sprout: Article

Planting and Pruning Bare Root Fruit Trees Class

January 13, 2022
By Anne E Schellman
The bare root fruit tree planting season is already here! Between December and February, deciduous bare root fruit trees are available for sale at nurseries and garden centers. Deciduous fruit trees lose their leaves each winter.
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UC Cooperative Extension Imperial County: Article

January 2022

January 13, 2022
32ND ANNUAL FALL DESERT CROPS WORKSHOP REPORT DECEMBER 2021 CATTLECALL NEWSLETTER UPDATE SAMPLES WANTED FOR RESEARCH ON LETTUCE FUSARIUM WILT IMPERIAL ALLEY CIMIS REPORT AND UC WATER MANAGEMENT RESOURCES...
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ANR Adventures: Article

Things are starting...

January 12, 2022
By Wendy Powers
Christopher Chen started his career at UC ANR this week as the Integrated Vineyards Systems Area Advisor, based at the Hopland Research and Extension Center in Hopland, with programmatic responsibilities in Mendocino, Lake and Sonoma Counties.
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Preservation Notes - San Joaquin Master Food Preservers: Article

I Thought Lemons Were a Summer Fruit?

January 12, 2022
By William Loyko Jr.
For the majority of folks, lemons make a great refreshment in the hot summer months. Children from all across America open up lemonade stands in hope of making enough money to buy some great item.
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