Ongoing research

By Susanne von Rosenberg, UC Master Gardener of Napa County If you're observant and you own citrus trees, you may have noticed that they usually have three flushes of growth each yearin spring, summer and fall. Young citrus trees and lemons tend to flush periodically year-round.

The desire for the peace, exercise, produce, or the beauty gardening brings into our lives seems to be gaining in popularity as we progress toward the end of 2020. Again, this quarter's chores will concentrate on just four chores per month one per week.

VINE: Wisteria. There are three species of Wisteria commonly planted in our area. They are legumes and can fix nitrogen, so no nitrogen fertilizer is needed. The Japanese wisteria (Wisteria floribunda) was introduced into the US in 1830. It can grow to a height of 30 feet and has blue flowers.

We're excited to announce that a brand-new online course on air blast spray calibration is now available.

Some lost everything: Their homes, their barns, their farm animals, their bees, their livelihoods. The recent wildfire that roared through rural Vacaville, reaching the outer edges of the city, seared the souls of the victims but what's happening now is warming their hearts.

Strawberries, which generated $2.2 billion for California growers mainly on the coast in 2019, are sensitive to soilborne diseases. Strawberry plant roots infected by fungi are unable to take in nutrients and water, causing the leaves and stems to wilt.

Daniel Ross Gallie, UC Riverside professor of biochemistry, passed away Sept. 13, 2020, at the age of 63 after a five-year struggle with cancer. He earned his B.S. in chemistry and cellular and molecular biology from the University of Michigan in 1979 and his Ph.D.

We're excited to announce that a brand-new online course on air blast spray calibration is now available.

Consumers who purchase luxury cotton textiles want more than cool, soft, absorbent fabric.

Summer is almost over, but it's not too soon to begin planning next summer's garden. Many bulbs flowering in late spring and summer should be planted this fall and winter: they are available at nurseries and online right now.