Pests in the Urban Landscape

Urban neighborhood and park.

The Pests in the Urban Landscape blog shares the latest resources and information from the UC IPM Urban & Community team to help you sustainably manage pests in the home, garden, and landscape. 

Primary Image
Up close image of a green citrus leaf with serpentine tunnel damage caused by feeding of a citrus leafminer larva, shown at the top of the leaf.

Citrus Leafminer

February 28, 2019
[This post has been modified from the article originally published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Citrus leafminer is a moth that arrived in California in 2000 and has invaded citrus throughout the state.
View Article
Primary Image
Several small white clusters of mealybug colonies feed on citrus leaves.

What Are Those Big White Bugs on Citrus Trees?

February 28, 2019
[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.
View Article
Primary Image
Three brown mottled Asian citrus psyllid adults feed on young citrus leaves alongside their tiny, yellow orange eggs.
Pests in the Urban Landscape: Article

Asian Citrus Psyllid

February 28, 2019
[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).
View Article
Primary Image
Up close image of a reddish black ant harvesting honeydew from an orange colored Asian citrus psyllid nymphs. A cluster of Asian citrus psyllid nymphs and their waxy honeydew are clustered in the foreground.
Pests in the Urban Landscape: Article

Ant Control for Insect Pests on Citrus

February 28, 2019
[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.
View Article
Primary Image
Mixed residential landscape planting of woody and herbaceous perennials illustrating a diversity of species to manage weeds.

How to Prevent Weeds in Landscapes

February 27, 2019
By Cheryl A Wilen
[Originally published as "Managing Weeds in Landscapes" published in the Fall 2018 issue of the Retail Nursery and Garden Center IPM News.] Nurseries and garden centers often sell a wide range of plants for use in gardens and landscapes.
View Article