درختان زيتون و دشمنان طبيعي آنها در استان گيلان ACARI: FRIOPHYIDAE معرفي دو گونه از كنه هاي اريوفيد

introduction of two eriophyid mites (Acari: Eriophyidae) and their natural enemies from olive trees in Guilan Province

In Guilan province olive trees are attacked by various pests among which eriophyid mites (Acari:Eriophyidae) represent an important group. An investigation was conducted during 2001-2002 for collection and identification of olive tree eriophyid mites and their natural enemies in Guilan Province. For extraction of eriophyid mites and their natural enemies DeLillo (2001) method. Was used the Amrine & Manson (1996) and Daneshvar (1980) methods, respectively were used for mounting of eriophyid mites and phytoseiid mites on microscopic slides. In this study 2 eriophyid mites, Aceria oleae (Nalepa) and Tegonotus hassani (Keifer), 4 predatory phytoseiid mites, Euseius finlandicus (Oudemans), Phytoseius Plumifer (Canestrini and Fanzago), Typhlodramus kettanehi (Dosse) and Paraseiulus soleiger (Ribaga) and I predatory anystid mite, Anystis haccarum L. were collected and identified. Symptoms of infestation with eriophyid mites observed in form of silvery yellow protuberances on the under side and pale green hollow on upper side of leaves. The infested leaves especially on suckers around the main trunk of olive trees became narrow and curl. Because of suitable weather conditions in Guilan Province, eriophyid mites are active during most seasons. Except Aceria oleae other species are recorded for first time on olive trees in Iran.