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Influence of the Photoperiod and Temperature on Larval Developmental Periods of the Great Mormon Butterfly Papilio memnon Linnaeus

2007; OMICS Publishing Group; Linguagem: Inglês

2168-9776

Zhou Cheng-li,

Agricultural pest management studies

The growth and development of larval of Papilio memnon were investigated under different photoperiods and temperatures which could be controlled in the climate-box.The effects of photoperiod and temperature on larval developmental periods of Papilio memnon were very remarkable.At same temperature,larval developmental periods had significant difference.At 20 ℃ and during daylength of 12～14 h,the larval developmental periods were in the scope of 39.3～48.5 days,and the margin between of the longest and shortest periods was 9.2 days.At 25 ℃ and during daylength of 11～15 h,larval developmental periods were in the scope of 25.4～36 days,and the margin between of the longest and shortest periods was 10.6 days.At 30 ℃ and during daylength of 11～15 h,larval developmental periods were in the scope of 19.6～29.0 days,and the margin between of the longest and shortest periods was 9.6 days.At the same daylength,larval developmental periods became shorter when the temperature was rising.Under daylengthes of 12.0,12.5,13.0,13.5 and 14.0 h,the developmental threshold temperature of larva were 13.6,13.3,9.2,12.2,and 7.5 ℃,the temperature effective thermal sum were 332.7,340.5,372.1,350.9 and 475.4 degree-days.At certain extent,the developmental threshold temperature and temperature effective thermal sum of larva were affected by photoperiod.