Vol. 122 (2009): Proceedings of the Florida State Horticulture Society
Krome Memorial Institute (Tropicals)

Trial to determine if salicylic acid and/or K-phite on young citrus trees grafted with HLB-infected budwood could prevent transmission of the bacteria

R. H. Brlansky
UF/IFAS

Published 2009-12-01

Abstract

A trial was performed evaluating the effect of salicylic acid and K-phite on young greenhouse-grown huanglongbing- (HLB) infected citrus trees. The product K-phite was applied at two different treatment rates both to the soil through a drench and as a foliar spray. The product also was used in conjunction with salicylic acid at two different rates. Treatments were administered on fi ve dates over a 7-month period. Six months after inoculation, 43% of the previously uninfected trees were HLB positive and 8% questionable according to PCR results. There were no differences between treatments or the untreated control—all were equally infected.