不同温度处理对十斑大瓢虫生长发育的影响

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引用格式：，等.不同温度处理对十斑大瓢虫生长发育的影响[J].湖南农业科学，2025（6）：75-77.DOI：10.16498/j.cnki.hnnykx.2025.006.013

中图分类号：S476.2 文献标识码：A 文章编号：1006-060X（2025）06-0075-03

Effects of Different Temperatures on Growth and Development of Megalocaria dilata

LIU Guo¹， DONG Yi-xia²，CHEN Yi3，4 ，MA Peng¹，LI Yang4，PU De-qiang³ （1.LiangshanBranchoficuanbcoCompanyXichang65ooo，C;2.PlantQuarantineStationofLangshanYutoomos Prefecture，L;.teftetdicualdu; 4.College ofChemistry andLife Sciences， Chengdu Normal University，Chengdu 61113o，PRC）

AbstractThisstudyamstolarifytheefectsofdiferentemperaturesonthegrowthanddevelopmentofMegalocariadilatatahree treatments of constant temperature at 25% ，alternating temperatures at 25% /30∘C ，and constant temperature at 30% were designed. The developmental duration，pupation rate，emergence rate， malformationrate，and adult body weight were recorded and analyzed. The results showed that compared with the treatment at the constant temperature of 25% ，treatments at alternating temperatures of 25% /30∘C and constant temperature of 30% significantly shortened the larva-adult development stage. Allthe larvae pupated. The emergence rate was 100% .The deformation rate under the treatment at the constant temperature of 30% was 6.67% ，which was significantly higher than that （3.33%） under the treatment at the constant temperature of 25°C or alternating temperatures of 25°C /30∘C .None of pupationrate，emergenceratedeformationrateoradultbodyweighthadsignificantvarationsamongdierenttmperaturetreatments. In conclusion， M. dilatata demonstratesstrongadaptabilitytothe temperatureswithin therange of 25°C to 30% ，and high temperature can accelerate the development without affecting the emergence rate.

Keywords：temperature;Megalocaria dilatata; developmental duration; biocontrol

十斑大瓢虫（Megalocariadilatata）属鞘翅目瓢虫科，成虫体长 9.0～13.0mm ，虫体基色多为橙黄色至橘红色。（剩余4945字）