Posts Tagged: Bagrada bugs
Pests of Landscape Trees and Shrubs.
Now in its third edition, this integrated pest management (IPM) how-to guide is a comprehensive resource for arborists, home gardeners, landscapers, parks and ground managers, and retail nurseries. It contains solutions for hundreds of insects, mites, nematodes, plant disorders and diseases, and weeds that can damage California landscapes.
Dozens of pests new to this edition include those affecting azaleas, camellias, camphor, eucalyptus, hibiscus, liquidambar, maples, oaks, olive, palms, pines, roses and sycamores.
A very important part of pest management is designing a pest-tolerant landscape, choosing the right plants for the location, and maintaining the landscape with appropriate irrigation, fertilizer, and other cultural practices to keep plants healthy.
These practices are featured along with information on how to:
- prevent pest problems and plant damage
- monitor for pests efficiently
- conserve natural enemies to provide biological control, and
- selectively use pesticides in ways that minimize adverse impacts
Problem-Solving Tables include the specific pests for each of over 200 genera of trees and shrubs, referring to the pages with their photographs and management solutions.
Bagrada bugs are native to east and southern Africa, Egypt, Zaire and Senegal, according to the Center for Invasive Species Research at UC Riverside. They first appeared four years ago in Los Angeles County, and rapidly spread through Southern California and southern Arizona.
Surendra Dara, UC Cooperative Extension advisor in Santa Barbara and San Luis Obispo counties, first wrote about bagrada bugs in his Strawberries and Vegetables Blog last January, when the pest was only found in Imperial, Riverside and Orange counties. Last month, Dara said the Santa Barbara agricultural commissioner received specimens from Solvang and found infestations of bagrada bug on mustard in other areas, making an official record of this pest in the county.
Conventional farmers are controlling bagrada bugs with pyrethroids and organophosphates like chlorpyrifos and malathion. However, because the bugs are so new to scientists, they haven’t yet figured out much in the way of organic controls, Dara said.