Özet:

Penicillium bulb rot (Penicillium corymbiferum) is one of the important diseases that cause yield losses in bulbous ornamental plants under storage conditions. The disease penetrates through the outer surface of the mechanically damaged onions and rapidly at the appropriate humidity and temperatıre. In recent years, Penicillium bulb disease has been observed to be a problem especially in flower bulbs marketed to the markets. In our country, there is no licensed fungicide against Penicillium bulb rot disease (Penicillium corymbiferum) in ornamental plants with bulbs. In this study, 7 different fungicides (thiram, iprodione, tolchlofos methyl, carbendazim, imazalil, kresoxim methyl and azoxystrobin) and their 1, 3, 10, 100 and 300 µg/ml or μl/ml doses were tested against Penicillium corymbiferum in vitro conditions. P-2 isolate of Penicillium corymbiferum was used in the experiment and ED50 value for imazalil was <1 determined as the most effective fungicide used in the experiment. The efficacy of the fungicides used ranged from 17-100%, followed by imazalil (100%), iprodione (83%) and thiram (64%).

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