Abstract:
Microplitis tuberculiter ( wesmael) can parasitize in the young larvae of Spodoptera exigua (H×bner) and Pseudaletia separata ( Walker). Researches on developmental durations, accumulated tempera- ture and developmental zero of Microplitis tuberculifer Wesmael by Pseudaletia separata ( Walker). The result showed that developmental zero and accumulated temperature of egg-larva, pupae were 12. 1 × and 115×15 day- degree, 8×47 × and 99×47 day-degree. With the increasing of temperature its developmental duration become shorter. Its developmental temperature was 23-27 ×. Under 25 × condition developmental durations of one generation was 14×64 day.
Key words:
Microplitis tuberculifer Wesmael,
Developmental durations,
Accumulated temperature,
Deve-l opmental zero
CLC Number:
QU Zhen-gang, WANG Jin-yao, ZHU Li-ying. Study on Developmental Durations, Accumulated Temperature and Developmental Zero of Microplitis tuberculifer Wesmael[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(4): 100-101. doi: 10.3321/j.issn:1000-7091.2004.04.027.