Sulfur materials do not control aphids and can cause phytotoxicity when applied to tender plants or under hot temperatures. The following materials are listed in order of efficacy, but their use may not be compatible with the preservation of natural enemies. For suppression only. Follow label guidelines for resistance management. Availability in many areas limited because of label restrictions for fields near waterways.
Control is insufficient, however, when there is a high risk of virus transmission.
Do not apply within this many days of harvest. Permit required from county agricultural commissioner for purchase or use. The Regents of the University of California. All rights reserved. For noncommercial purposes only, any Web site may link directly to this page or photo file.