Yüksek Sıcaklığın Alman Hamamböceği, Blatella germanica (Dictyoptera: Blattellidae), Erginlerine Ölüm Etkisi

Hasan Tunaz, Ali Arda IŞIKBER, Hacı Ali PUR, Mehmet Kubilay ER
1.069 125


Yüksek sıcaklık uygulaması depolanmış ürün zararlılarının mücadelesinde kullanılan ve sentetik kimyasal mücadele yöntemine alternatif olan bir mücadele yöntemidir. Bu çalışmada yüksek ortam sıcaklığının (44-51oC) etkisi Alman hamamböceği Blattella germanica (L.) (Dictyoptera: Blattellidae) ergini üzerinde test edilmiştir. Çalışmada Alman hamamböceği erginlerine 44, 48 ve 51 oC sıcaklık uygulaması sonunda zaman-ölüm ilişkisi ortaya konulmuştur. Uygulama sıcaklığı ve uygulama süresi artırıldığında hamamböceği ölümleri yükselmiştir. Alman hamamböceklerinin % 100 ölümü 51 oC de 25 dakikada gerçekleşirken 44 oC de 120 dakikada gerçekleşmiştir.  Bu bulgular yüksek sıcaklık uygulamasının depolanmış ürün zararlılarının mücadelesinde olduğu gibi kentsel bir zararlı olan Alman hamamböceği mücadelesinde de kullanılabileceğini ortaya koymuştur. Ancak yüksek sıcaklık uygulaması ile ilgili mücadele yönteminin daha fazla araştırılması gerekmektedir.

Anahtar Kelimeler: Yüksek sıcaklık, B. germanica, ergin, ölüm 


Mortality Effect of Elevated Temperatures on Adult German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae)


ABSRACT: Elevated ambient temperature has been used for controlling stored-product insect pests and is an alternative to synthetic chemical control methods.  In this study, the mortality effect of elevated ambient temperatures (44-51oC) was tested on adults of German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae). We determined time-mortality relationship for adults of German cockroach exposed to temperatures of 44, 48 and 51oC. Mortality of adults increased with increasing temperature and exposure time. This study revealed that exposure of 25 minutes at 51 oC or exposure of 120 minutes at 44 oC was required for killing 100 % of adult German cockroach. The findings suggest that as in controlling of stored insect pest, elevated temperatures or heat treatments could be used for controlling German cockroach, which is an urban pest. However, elevated temperatures or heat treatments need further investigation as control method for cockroach control.

Key Words: Elevated temperatures, B. germanica, adult, mortality


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