FIELD MANAGEMENT OF AVOCADO POSTHARVEST DISEASES

S.L. Willingham, K.G. Pegg, L.M. Coates, A.W. Cooke, J.R. Dean, P.W.B. Langdon, D.R. Beasley
Strobilurin fungicides were found to be effective in controlling postharvest diseases of ‘Hass’ avocado. Of the three strobilurin formulations tested in the field on ‘Hass’, the Amistar® and Flint® fungicides were found to be superior to the Stroby® formulation. The incidence of anthracnose was significantly reduced by 66% or 74% when Amistar® or Flint® was applied as a foliar spray. Rootstock studies conducted on ‘Hass’ found rootstock race had a significant impact on postharvest anthracnose susceptibility. This is the first record of such an effect for avocado. The incidence of anthracnose was on average 34-35% significantly lower for ‘Hass’ grafted on the Guatemalan ‘Velvick’ rootstock as compared with the Mexican ‘Duke 6’ rootstock.
Willingham, S.L., Pegg, K.G., Coates, L.M., Cooke, A.W., Dean, J.R., Langdon, P.W.B. and Beasley, D.R. (2001). FIELD MANAGEMENT OF AVOCADO POSTHARVEST DISEASES. Acta Hortic. 553, 435-438
DOI: 10.17660/ActaHortic.2001.553.101
https://doi.org/10.17660/ActaHortic.2001.553.101
Strobilurins, rootstocks, dienes
English
553_101
435-438

Acta Horticulturae