B. Zaitlin et al., Latent infection of peach caused by Colletotrichum gloeosporioides and Colletotrichum acutatum, CAN J PL P, 22(3), 2000, pp. 224-228
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
CANADIAN JOURNAL OF PLANT PATHOLOGY-REVUE CANADIENNE DE PHYTOPATHOLOGIE
Attached, immature peach fruits were mist-inoculated in the held with isola
tes of Colletotrichum gloeosporioides or Colletotrichum acutatum. beginning
approximately 2 weeks before pit hardening and at regular intervals throug
hout the growing season until harvest. Immature fruits inoculated with eith
er species initially remained symptomless or developed small, necrotic lesi
ons that did not enlarge. Treatment with paraquat revealed the frequent pre
sence of latent infections. Infections were not found in the noninoculated
controls. Up to 100% of fruits inoculated with C. gloeosporioides developed
anthracnose symptoms when mature. Inoculation with C. acutatum resulted in
up to 83% of the fruits developing symptoms at maturity. Inoculation date
did not influence symptom development. Peach fruit may be infected with eit
her C. acutatum or C. gloeosporioides early in development and remain sympt
omless until maturity.