When eradication has been unsuccessful and the disease has become established, management options include replacing susceptible citrus cultivars with resistant cultivars, applying preventive sprays of copper-based bactericides, and destroying infected trees and all surrounding trees within an appropriate radius.

March: If the temperature remains above 45 degrees, apply dormant sprays to ornamental shrubs and trees to control aphids, scales and other insects.

Anti-Desiccant Sprays Q. Is it too late in the year to apply anti-desiccant sprays to young rhododendrons?

Large sojourners had pulled close to the scene of the conflagration and were applying high-powered sprays on the surrounding buildings.

It is particularly important to apply sprays on bright, windless days so the spray material does not drift off and the foliage can dry completely after application.