Eight-year field performance of pine seedlings after mycorrhizae were triadimefon-inhibited in the nursery

Abstract

Loblolly pine seedlings were not sprayed with a fungicide or were sprayed with triadimefon (Bayleton®) at 6 oz ai/ac or with twice or four times that rate to differentially suppress mycorrhizal development. Seedlings were planted at three sites and evaluated in the eighth year after outplanting. Fusiform rust incidence and tree heights and diameters differed significantly between nursery sources and among outplanting sites, but not between triadimefon treatments. Survival did not differ between sites, nursery sources or triadimefon treatments.