Archive Nut, Prune and Olive Programs

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In-a-Nutshell - Nut Culture
Dried Plum News - Prune Culture
Olive Notes - Olive Culture

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May 2025Archived

Field picture submitted by Elizabeth Fichtner

Publications

Pest Notes
- Olive Knot
- Black Scale
UC Pest Management Guidelines (UC Statewide IPM Project Web Site)
UC Cooperative Extension Cost and Return Studies
- Almonds
  Double Line Drip Irrigation. Southern San Joaquin Valley. 2016 PDF
- Almonds
  Flood Irrigated. San Joaquin Valley North. 2011. PDF
- Almonds
  Micro-sprinkler. San Joaquin Valley North. 2016. PDF
- Olive Oil
  Super High Density. San Joaquin Valley 2007. PDF
- Olives - San Joaquin Valley. 2005 PDF
- Pecans - Sacramento/San Joaquin Valley - 2005. PDF
- Pistachios
  Low Volume Irrigation - San Joaquin Valley South. 2015. PDF
- Walnuts
  Late Leafing - Lateral Bearing. San Joaquin Valley North. 2017. PDF
- Walnuts
  Micro-Sprinkler Irrigation - San Joaquin Valley North. 2007 PDF

UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | Pine Needle Mulch

"Water, water everywhere, but nary a drop to drink" is a good analogy and sums up my thoughts when I look at all the pine needles on the ground but have been discouraged from using them as mulch because they lower the pH of the soil to acidic levels.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | Mulching Leaves for Compost

Article originally appeared in the Mountain Democrat, 10/19/ 2022 Leaves are magical things. The original solar panels, leaves take sunlight and convert it into food for the plant. But when they dry up and fall on the ground, many people quickly want to rake them out of their yards.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | Growing Asparagus

Fresh green stalks of Asparagus, Asparagus officinalis, ready to harvest, is a welcome springtime occurrence. The question is, how do we get to the point where the plant is producing this wonderful perennial vegetable? Growing asparagus requires patience, care, and a bit of know-how.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | Vegetable Gardening Archive

We remember the taste of fresh vegetables that always seemed to taste better than vegetables purchased at the supermarket. So, it is natural that many of us would want to have a vegetable garden, as there are few things more satisfying than growing your own food.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | March Gardening Tips

Prune grapes and roses Cleanup: remove mummy fruit and blighted limbs on stone fruit to reduce brown rot. Remove and destroy fallen leaves to reduce peach leaf curl. Mulch cane berries, cut out all old canes and reset new canes in twine.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | April Gardening Tips

Pinch chrysanthemums back to 6 inches every month through July. Trim dead flowers but not leaves, from spring bulbs. Mulch cane berries, cut out all old canes and reset new canes in twine. Cultivate and pull weed seedling now to prevent bloom.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | February Gardening Tips

Above 2000 ft. : prune deciduous fruit trees, cane berries Below 2000 ft.: prune grapes, roses, crepe myrtle. Paint trunks of bare root and young fruit trees to prevent borers and protect from sunburn. Use interior white latex paint with equal amounts of water and apply generously.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | August Gardening Tips

Continue mulching to conserve soil moisture and control weeds. Keep harvesting vegetables for continued production. Do the final pruning of summer for fruit bushes. Prune apricots to avoid Eutypa fungus. Remove about 20% of this year's growth.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | July Gardening Tips

Watering and pest control are top of the "To Do" list. Water after midnight and before 10am to reduce the chance of fungal infection and to conserve moisture. Pinch off the top pair of leaves on all chrysanthemum shoots longer than 5" to keep plants bushy and produce more flowers.

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UC Master Gardeners of El Dorado County: Page

Central Sierra: El Dorado County | Master Gardener | Monthly Gardening Tips

The backyard gardeners of our area have a multitude of challenges when they begin to garden. From our microclimates, elevation, soil ranges to what to plant when and where. The Master Gardeners can help with the questions our gardeners have.

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