Akademik Veri Yönetim Sistemi
International Agricultural, Biological & Life Science Conference, Edirne, Türkiye, 2 - 05 Eylül 2018, ss.28-32
Experiments were conducted to find out the susceptibility of the larvae of Zabrus spp. (Coleoptera:
Carabidae), an important insect pest of wheat, against entomopathogenic nematodes (Rhabditida:
Steinernematidae and Heterorhabditidae) in the laboratory first time in the World. The
entomopathogenic nematodes used in the trials were Steinernema feltiae-Commercial, S. feltiaeEndemic, S. carpocapsae, S. bicornutum, Heterorhabditis bacteriophora, and H. indica. Small
plastic pots with a lid (8 cm in height, 6 cm in diameter) containing autoclaved soil have been
utilized in trials. In the experiments, rates of 50, 100 and 200 infective juveniles (IJs)/cm
2
at 15, 20
and 25°C applied and they were repeated 2 times. Raising rate and temperature expanded the
mortalities caused by nematodes. S. carpocapsae produced 75% mortality at the rate of 200 IJs/cm2
,
which was the highest at 15°C. The lowest mortality with 5% at the rate of 50 IJs/cm2 was caused
by S. bicornutum 15°C. Steinernema carpocapsae at the rate of 200 IJs/cm2
, and S. feltiae-Endemic
and H. indica at the rate of 50 IJs/cm2
provided the highest (85%) and the lowest (20%) mortality,
respectively at 20°C. At 25°C, S. carpocapsae at the rate of 200 IJs/cm2 was the nematode caused
the highest mortality with 95% while S. feltiae-Endemic at the rate of 50 IJs/cm2 was producing
25% mortality which was the lowest. As a result, S. carpocapsae performed the best efficacy against
Zabrus spp. and it was followed by H. bacteriophora and S. bicornutum.