Objective To improve and update the standard indoor rearing technique of Blattella germanica for an easy access to a large number of standard test insects, and to provide a reference for the screening of sanitary insecticides against B. germanica and conducting relevant research. Methods The cockroaches were reared under a continuous dark condition (except operating time) at (27±1)℃ and (60±10)% humidity for one year. The duration of each developmental stage (egg stage, nymphal stage, pre-oviposition period, and generation time) and the body weights of male and female adults were tested to evaluate the reliability of this rearing technique. Results The developmental time of the cockroaches was (15.75±1.26) d for the egg stage, (30.50±1.29) d for the nymphal stage, (9.00±0.82) d for the pre-oviposition period, and (55.25±1.71) d for the generation time. A male adult weighed (54.36±0.19) mg, and a female adult weighed (104.78±3.09) mg. Conclusion This rearing method shortens the developmental periods of B. germanica, and makes a good consistency of growth and development for all stages. It is suitable for the annual generation of B. germanica and can be used as a new standard indoor rearing technique.
LIU Yu-chao, LIU Jin-lin, LI Ya-lei, WANG Zong-qing
. Study on indoor rearing technique of Blattella germanica[J]. Chinese Journal of Vector Biology and Control, 2020
, 31(4)
: 474
-476
.
DOI: 10.11853/j.issn.1003.8280.2020.04.020
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