Surveys on nematodes of potatoes in Saudi Arabia
A survey has been conducted in Saudi Arabia from 1989 to 1991, in the six major potato-producing regions. The following genera, with their respective frequency, were found: Aphelenchus (40 %), Ditylenchus (28 %), Tylenchorhynchus (20 %), Meloidogyne (19 %), Aphelenchoides (10ÿ%), Tylenchus (9 %), Subanguina (6 %), Trichodorus (5 %), Pratylenchus and Helicotylenchus (2 %), Macroposthonia (0.7ÿ%), Pratylenchus and Cacopaurus (0.2 %). In Saudi potato fields, the main problems are due to
Meloidogyne spp. (mainly M. javanica), Tylenchorhynchus spp. and Ditylenchus spp (mainly D. destructor - EPPO A2 quarantine pest). This is the first report of D. destructor in Saudia Arabia known to the EPPO Secretariat.
Meloidogyne spp. (mainly M. javanica), Tylenchorhynchus spp. and Ditylenchus spp (mainly D. destructor - EPPO A2 quarantine pest). This is the first report of D. destructor in Saudia Arabia known to the EPPO Secretariat.
Sources
Al Hazmi, A.S.; Ibrahim, A.A.M.; Abdul-Raziq, A.T. (1993) Distribution, frequency and population density of nematodes associated with potato in Saudi Arabia.
Afro-Asian Journal of Nematology, 3(1), 107-111.