Older streaks are from the accumulation of suber, or corky tissue. These “rashes” also may happen when a cactus is damaged by disease.
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Pollen alert. That’s what we see on our advisories in the early spring. Pollen season might last until May. Right now we’re in mulberry season.
Why doesn’t my Meyer lemon tree produce any fruit? I was reminded of this question when I estimated the fruit production this year in a Las Vegas orchard.
The high population of aphids this year was caused by our wet and humid spring weather. The fastest way to get rid of them is to drench the soil beneath the tree with a systemic insecticide diluted in a bucket of water.