Laboratory evaluation of some native isolates of Steinernema feltiae against the Rice Weevil, Sitophilus Oryzae (L.), (Curculionidae: Coleoptera)

Yıl 2020, Cilt: 11 Sayı: 1, 65 - 69, 30.06.2020

Ramazan Canhılal Ebubekir Yüksel

https://doi.org/10.31019/tbmd.620151

Cited By: 1

Öz

The
efficacy of three native entomopathogenic nematode (EPN) isolates Steinernema feltiae UKK-1, S. feltiae DTK-6, and S. feltiae UIP-19) on the adults of Sitophilus oryzae (L.), (Curculionidae: Coleoptera)
was investigated at different concentrations (50, 100, 250, 500, 1000 and 2000
IJs/adult) in laboratory bioassays (25oC and 65% RH). Mortality
rates of S. oryzae were evaluated
after 4th and 8th day of exposure time. Mortality rates
increased with the increasing the concentrations and ranged between 7% and 92%.
The highest mortality rates were 80% and 92% at the 4th and 8th
days after treatment, respectively. The results from the laboratory tests
showed that EPN isolates tested have a good potential for the management of S. oryzae. 

Anahtar Kelimeler

Stored product pest, entomopathogenic nematode, Sitophilus oryzae, Steinernema feltiae

Pirinç Biti, Sitophilus Oryzae (L.), (Curculionidae: Coleoptera)'ye karşı bazı yerel Steinernema feltiae izolatlarının laboratuar koşullarında değerlendirmesi

Öz

Üç yerel entomopatojen
nematod (EPN) izolatının (Steinernema
feltiae UKK-1, S. feltiae DTK-6
ve S. feltiae UIP-19) Sitophilus oryzae (L.), (Curculionidae:
Coleoptera) erginleri üzerindeki etkinliği farklı konsantrasyonlarda (50, 100,
250, 500, 1000 ve 2000 IJs /ergin) laboratuvar koşullarında (25oC ve
%65 RH) incelenmiştir. Sitophilus oryzae erginlerinin
ölüm oranları uygulama sonrası 4. ve 8. günlerde kaydedilmiştir. Ölüm oranları
artan uygulama konsantrasyonlarıyla birlikte artmıştır ve ölüm oranları %7-92
arasında değişmiştir. Uygulama sonrası 4. ve 8. gündeki en yüksek ölüm oranları
sırasıyla %80 ve %92 olarak gerçekleşmiştir. Laboratuvar çalışmaları test
edilen EPN izolatlarının S. oryzae’nin
mücadelesinde iyi bir potansiyele sahip olduğunu göstermektedir.

Anahtar Kelimeler

Depolanmış ürün zararlısı, entomopatojen nematod, Sitophilus oryzae, Steinernema feltiae.

Kaynakça

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