Q: What are these weird white things on my citrus trees? They don’t seem like they’re moving, but they sure do attract ants! A: Cottony cushion scale is a common pest of citrus, but can also infest ...

Many people have a potted citrus plant or two that they keep indoors during the winter and move outdoors for the summer. It may be one of those dwarf trees that produce full-sized fruit. Or it could ...

Q:My 8-year-old daughter would like to identify something we found on the branch of a lemon tree (see photo). It is striking how these mimic the blossoms. For scale, the lemon is 7.5 centimeters in ...

Earlier this week, one of my neighbors told me that her Meyer lemon tree has had a bad infestation of scale insects for several years and that all of her attempts to eradicate the pests had failed. I ...

Indoor heating lowers humidity levels and causes dry air. In the winter, using a cool-mist humidifier near your citrus tree can help prevent leaves and flowers from dropping off too soon. Or if your ...

Citrus trees are reputed to need little or no pruning. True, they generally don’t need much pruning but an annual shaping and trim makes harvest easier and helps keeps citrus in good health for years.

Check citrus trees in summer for signs of distress, disease or pests. Linda Lewis Griffith (San Luis Obispo) Tribune file It can be a bit alarming to look out at your lemon tree in June and see the ...

Last month, citrus greening disease, huanglongbing (HLB), finally appeared on San Diego County, in backyard citrus in Oceanside. County officials held it off for a long time but, sadly, it was ...

Earlier this week, one of my neighbors told me that her Meyer lemon tree has had a bad infestation of scale insects for several years and that all of her attempts to eradicate the pests had failed. I ...