California Cherry, Walnut Growers Get New Tool Against Bacterial Diseases
California’s Department of Pesticide Regulation (CDPR) recently granted Arysta LifeScience registration for Kasumin bactericide for control of walnut blight in walnuts and bacterial blast and bacterial canker in cherries. In January, the CDPR approved Kasumin for control of fire blight in apple and pear crops.
Kasugamycin, the unique active ingredient in Kasumin, features a high level of preventive activity, making it effective on a wide array of plant pathogenic bacteria including copper-resistant bacterial strains. Kasumin is available as a liquid formulation, and field testing has shown it can be easily tank-mixed with other fungicides to increase the spectrum of disease control. Kasumin has a 12-hour restricted-entry interval (REI) and 90-day pre-harvest interval (PHI).Bacterial canker in cherries can be difficult to control due to the pathogen’s ability to colonize and move systemically in the trees under the right conditions. Symptoms of bacterial canker include fruit spots, leaf spots, shothole, branch canker, and blossom blast. Kasumin offers growers unique site of activity and systemic activity in foliage and succulent tissue.
In walnuts, Kasumin offers growers an option to control walnut blight early.
“Without adequate control, walnut blight can take a heavy toll on nut production, particularly in warm, wet conditions and when inoculum is high,” says Layne Wade, Senior Technical Service Manager, Arysta LifeScience.