Root-lesion nematodes (Pratylenchus sp.) in Portugal

Abstract

Little is known about the occurrence and distribution of Pratylenchus Filipjev in Portugal. The first record is of P. penetrans (Cobb) Filipjev et Schuurmans Stekhoven intercepted in Begonia sp. by the Bureau of Entomology and Plant Quarantine of the U.S.A. (Anon, 1958). The only other record is that of P. penetrants and P. thornei Sher et Allen associated with the roots of olive trees in the Coimbra district (Abrantes, 1980). A survey started in 1983 (Abrantes and Santos, 1984) revealed the presence of P. penetrans, P. crenatus Loof and P. thornei in the roots of several kinds of hosts. The data from the survey are considered further here.