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Effect of irrigation on the dynamics of Phytophthora citrophthora populations in soil of citrus orchards 1
Author(s) -
LIO G. MAGNANO,
MESSINA F.,
GRECO G.,
PERROTTA G.
Publication year - 1990
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1990.tb01182.x
Subject(s) - orchard , irrigation , propagule , biology , phytophthora , population , canopy , root rot , geography , agronomy , horticulture , agroforestry , botany , demography , sociology
Effects of irrigation on the dynamics of soil populations of Phytophthora citrophthora have been studied in three citrus orchards in East Sicily (Italy). Significant increases of inoculum levels were detected 24 h after irrigation. In one orchard throughout summer, population of P. citrophthora beneath the tree canopy was more than 15 propagules g‐ 1 soil, a value which is considered a threshold level for root rot infections.