Occurrence of Monilinia laxa and M. fructigena after introduction of M. fructicola in peach orchards in Spain

摘要: Seventeen field surveys were done in four commercial orchards during six consecutive fruit-growing seasons from 2006 until 2011 order to determine the current frequencies of occurrence M. laxa, fructigena, and fructicola their relative contributions postharvest brown rot peaches nectarines Ebro Valley. The Monilinia spp. determined on three sources primary inoculum secondary inoculum. major significantly recorded (P = 0.05) mummified fruit trees (approx. 42 %) 7-day-old harvested with (32 %), followed by that recovered orchard bed (14 %), pruned branches (8 %) latent infections immature (3 %). We found that: (a) frequency has increased over years coexist same level as at time (b) fructigena is no longer a cause peaches, (c), progressive reduction first appearance airborne conidia (r = −0.30, P = 0.003), infection (r = −0.44, P = 0.0001) was detected along after correlation analysis, (d) these displacements are not associated an incidence disease. increase due its presence (r = 0.73, P = 0.0009), (r = 0.68, P = 0.002), (r = 0.56, P = 0.018), sampled (r = 0.53, P = 0.03). This accompanied laxa (r = −0.55, P = 0.021) (r = −0.51,