تاثير كنه كش فناز و كويين (پرايد) روي كنه قرمز اروپايي در باغ هاي سيب چناران مشهد

Evaluating fenazaquin 20% SC new acaricide against Panonychus ulmi Koch in apple orchards of Chenaran of Mashad

Fenazaquin (Pride) 20% SC (acaricide, insecticide) introduced recently to evaluate its pesticide ability against Panonychus ulmi Koch in modern apple orchards of Khorasan province. The study conducted for two years (1996 and1998) in Chenaran and mortality % caused to European red mite has been compared with Omite 57% EC and Citron 20% EC. Six replications done through randomized complete block design. 30 leaves were plucked from each block(6 trees) al random and mortality of active stages recorded through five sampling interval (one day before, 3, 7, 14, 21and 30 days after chemical applications). Mortality % of collected data calculated by Henderson and Tilton method and data were subjected to analysis of variance. The results of different sampling treatments showed that, a longer and absolute control effects of pride, while control % obtained for Omite and Citrazon were 83/1% and 58/1% respectively, According to new Duncanʹs multiple range test results were also ranked and indicated that, pride is a superior in controlling apple mite pests over other acaricides tested.