Temprative Relations in Bathycelic thalassin H-S (Pentatomidae) and Sahlbergella singularis Hagl. Miridae)Two Heteropteran Pests of Cocoa (Theobroma cacao) in Nigeria

IFEDIORAMMA E. NWANA AND ANTHONY YOUDEOWEI

ABSTRACT: Development of B. thalassina and S. singularis was not accomplished at 15°C at 35°C. Development in both species was similarly affected by temperature at the range 20-30°C; an increase in ambient temperature within this ranged a reduction in the developmental period. However, B. tlialassina showed wider range of temperature tolerance than S. singularis . The “preferred temperature” range of 20.7°C to 34.9 °C for B. thalassina was wider than 23 °C to 32 °C for S. singularis

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