Citrus, ants, and HLB: the latest research

Citrus, ants, and HLB: the latest research

Yesterday, I attended a citrus pest management field day at Rancho Guejito put on by the University of California. The focus was on the disease Huanglongbing (HLB) and ants. I’ve attended many similar lectures and research updates on these topics over...
Grafting onto citrus rootstock suckers

Grafting onto citrus rootstock suckers

Citrus trees often shoot up branches from down low on the trunk. If low enough — below the graft union — then these “suckers” are from the rootstock. In a sense, these are dangerous, and it’s important to remove them immediately. See...
Your favorite citrus

Your favorite citrus

April is a great time of year to plant a new citrus tree, but which kind to plant? Take a cue from these Yard Posts readers who share their favorite varieties from their Southern California yards.  Lavender Gem tangelo Bob started gushing to me about Lavender Gem...
Cara Cara navel orange tree: a profile

Cara Cara navel orange tree: a profile

Cara Caras are tasting like candy here in mid-February. They’re like a pink Jolly Rancher – even though they’re an “orange.” I hear of people harvesting Cara Caras around Christmas, and the entry for Cara Cara navel orange in the University of California at...
Which kind of citrus tree do I have?

Which kind of citrus tree do I have?

Because there is a citrus tree in almost every yard in California, we often inherit one when we move into a new house. Which kind is it? What if there’s no one around to tell you? Here I describe how I approached figuring out the identities of a couple mystery...
The Bearss lime tree: a profile

The Bearss lime tree: a profile

My wife came home with some limes from the grocery store one day nine years ago and I said, “We shouldn’t be buying those. I can grow those.” That’s how I ended up planting our Bearss lime tree back in 2012. In this profile, I’ll tell you a bit more about my own tree...
Saving the Parent Washington Navel orange tree

Saving the Parent Washington Navel orange tree

We were on the corner of Arlington and Magnolia in Riverside, looking at some citrus trees surrounded by a wrought-iron fence. It was 2012, I was with a group of Master Gardener trainees, and our guide started telling us the story of one of the trees. The tree was, at...
Reading citrus leaves

Reading citrus leaves

What can you learn about your lemon or orange, mandarin or grapefruit tree from its leaves? Following are photos of citrus foliage mostly from the trees in my own Southern California yard, and each photo tells a small story. It’s likely that you’ll recognize some of...

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