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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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Cabbageworms can eat your healthy vegetables if left unchecked. (Photo: Wikimedia Commons)
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Check your winter vegetables for cabbageworms

October 25, 2024
Favorite plants for winter gardens in Fresno County are brassicas such as cabbage, broccoli and kale which are available in standard and ornamental varieties. If you're growing these healthy vegetables, keep an eye out for cabbageworms.
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Oak galls form in a wide variety of colors, shapes and sizes when chemicals produced by the larva of wasps are injected into oak leaves, branches or twigs. (Illustration: “Alternating generations; a biological study of oak galls and gall flies,” 1894, University of California Libraries)
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This week in the garden: Oct. 25 - 31

October 25, 2024
The bumps on oak tree foliage and branches are galls caused by minute cynipid wasps, and do not harm people or the trees. Tasks Cut warm-season grasses short and over-seed with cool season grasses annual or perennial rye or fine fescue. Better yet let them go dormant to save water and mowing.
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Mulch your winter garden to nourish the soil and prevent weeds. (Photo: Vicki Moore, CC by 2.0)
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This week in the garden: Oct. 18 - 24

October 18, 2024
The weather profile remains dry and drought conditions may continue through the fall. Tasks Monitor rainfall and adjust water accordingly to keep soil moist for new plantings. Put organic mulch around permanent plants to conserve water and prevent weeds.
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A small sample of the Master Gardener tree list for Fresno County.
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It's the best time to plant a tree

October 11, 2024
October and November are ideal months to plant new trees in Fresno County landscapes. The soil is still warm and the weather cools, perfect conditions for pushing root growth that will give the new tree a running start in the spring. Planting a new tree does require thoughtful planning.
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