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Fresno Gardening Green

News and information about sustainable gardening in Fresno County written by UC Master Gardener volunteers. For more information, visit the UC Master Gardeners of Fresno County website.

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Whiteflies on green background
Fresno Gardening Green: Article

Ugh! What are those clouds of white flying insects in my garden?

March 26, 2026
Small flying insects on and around your citrus, tomato, crepe myrtle, roses, squash, etc., are most likely whiteflies.In addition to clouds of the mature flies, you may also see:Deposits of white wax (with certain species).Tiny nymphs, the immature stage, which are oval, legless and immobile, and can range…
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Bird with worm on lawn
Fresno Gardening Green: Article

This week in the garden: March 27 - April 2

March 26, 2026
Late March or early April is the end of the spring planting season; roots need to become established before the summer heat.TasksWatch for powdery mildew on susceptible plants. Rotate the fungicide used since the fungus may develop resistance.If citrus has scale, mites or thrips, spray with summer-weight…
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Free hands-on plant propagation class March 28 in Fresno

March 18, 2026
Dr. Hamamrit Gill, UC Cooperative Extension environmental horticulture advisor, will lead an engaging workshop from 10 to 11:30 a.m. Saturday, March 28, to introduce the public to a variety of plant propagation techniques, including cuttings, grafting, air layering and budding. The class will be at the…
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Orange petunias

This week in the garden: March 20 - 26

March 18, 2026
As spring unfolds, take time to enjoy the fruits of your labor. “My garden is my most beautiful masterpiece” ~ Claude MonetTasksCompost weed-free grass clippings and other thorn- and disease-free garden waste.Better yet, start a grasscycling program for an existing lawn.PruningShape hedges.Do not apply any…
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A sign that says All America Selections

Award-winning flowers and vegetables displayed at Garden of the Sun

March 18, 2026
 Fresno County residents can see how new flowering plants and vegetables bred by the nursery industry fare under local conditions in the All-American Selections demonstration area at the UC Master Gardeners’ Garden of the Sun.All-America Selections, a national non-profit that tests plants for superior…
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