Effects of Temperature and Humidity on the Survival and Water Loss of Cimex hemipterus (Hemiptera: Cimicidae) | Zendy

YeeFatt How | Zendy; ChowYang Lee | Zendy

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Effects of Temperature and Humidity on the Survival and Water Loss of Cimex hemipterus (Hemiptera: Cimicidae)

Author(s) -

YeeFatt How,

ChowYang Lee

Publication year - 2010

Publication title -

journal of medical entomology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.866

H-Index - 99

eISSN - 1938-2928

pISSN - 0022-2585

DOI - 10.1603/me10018

Subject(s) - biology , relative humidity , hemiptera , humidity , horticulture , pest analysis , instar , zoology , cimex lectularius , toxicology , veterinary medicine , botany , larva , physics , thermodynamics , medicine

The effect of temperature and humidity on the survival and water loss of the tropical bed bug, Cimex hemipterus (F.), was studied using two field-collected strains. Insects were exposed to temperatures ranging from 20 to 45 degrees C and relative humidities (RHs) of 33, 75, and 100%. C. hemipterus survived longest under the interaction of low temperature (20 degrees C) and high RH (75-100%). Survival and water loss were significantly affected (P < 0.01) by temperature and RH (either singly, or in interaction). Strain and sex significantly (P < 0.01) influenced bed bug survival, but not on water loss. Eggs, first instars, and adults reached their upper thermal lethal limit within 1 h at 39 degrees C, 44 degrees C, and 46 degrees C, respectively. The survival and water loss profiles showed that starved C. hemipterus started to die after losing 35-45% of their body weights.

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