- Author: Elizabeth E Grafton-Cardwell
- Editor: Elaine Lander
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.]
As a home gardener, you may find big white bugs clinging to the twigs and leaves of your citrus trees and need help with identifying and managing these pests. At first glance, they may look similar but in order to have effective pest management, it's important to first determine what they are. Mealybugs and cottony cushion scale are...
/span>- Author: Elizabeth E Grafton-Cardwell
- Editor: Elaine Lander
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.]
The Asian citrus psyllid, Diaphorina citri, is a tiny, mottled brown insect about the size of an aphid (Figure 1). This psyllid feeds on all varieties of citrus and some related ornamental plants like orange jessamine. It damages citrus leaves by feeding on new leaf growth, causing the leaves to...
/span>- Author: Elizabeth E Grafton-Cardwell
- Editor: Elaine Lander
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.]
Most citrus tree problems in home gardens can be solved by pruning the trees to allow better air flow and by controlling ants. Ants collect the honeydew produced by Asian citrus psyllid nymphs, mealybugs and
/span>The Asian citrus psyllid is an insect that can carry a deadly tree disease called Huanglongbing or citrus greening. To help educate people about the seriousness of this disease, how it spreads, and how to deal with it, the UC IPM program has published an updated version of the Pest Notes: Asian Citrus Psyllid and Huanglongbing Disease, by experts Elizabeth Grafton-Cardwell and Matt Daugherty.
- Author: Pamela Kan-Rice
The incurable citrus tree disease huanglongbing, or HLB, has been detected in Los Angeles and Orange counties and most recently in