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Information Journal Paper

Title

LONG-TERM COLD RESPONSE IN OVERWINTERING ADULTS OF LADYBIRD HIPPODAMIA VARIEGATE (COLEOPTERA: COCCINELLIDAE)

Pages

  119-126

Abstract

 HIPPODAMIA VARIEGATA is an efficient and most abundant predatory coccinellid in many countries. Understanding the ability of long-term low temperature survival in beneficial insects can be used to make better predictions about subsequent abundance and hence the biological control potential in the next spring and summer. So in this study, effects of long-term LOW TEMPERATURES were investigated on mortality and SUPERCOOLING POINT (SCP) of field collected (pre-diapausing) and OVERWINTERING aggregations of H. variegataadults. Unlike the pre-diapausing insects, aggregated coccinellids could easily survive at -3 and 0oC for one month. One month acclimation at 10oC caused more than 80% mortality in OVERWINTERING adults, indicating that higher temperatures were not appropriate for OVERWINTERING aggregated coccinellid. In December and January, when diapause was in its highest level, changing the habitat temperature did not affect SCP. ACCLIMATIZATION at 5 and 0oC for one month decreased SCP of pre-diapausing adults, collected from aphid infested plants in October. Our study revealed that long term exposure to temperatures below 0oC that usually happen in natural conditions may be necessary for OVERWINTERING of the coccinellid.

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    Cite

    APA: Copy

    HAMEDI, NAYEREH, & MOHARRAMIPOUR, SAEID. (2013). LONG-TERM COLD RESPONSE IN OVERWINTERING ADULTS OF LADYBIRD HIPPODAMIA VARIEGATE (COLEOPTERA: COCCINELLIDAE). JOURNAL OF CROP PROTECTION, 2(2), 119-126. SID. https://sid.ir/paper/616282/en

    Vancouver: Copy

    HAMEDI NAYEREH, MOHARRAMIPOUR SAEID. LONG-TERM COLD RESPONSE IN OVERWINTERING ADULTS OF LADYBIRD HIPPODAMIA VARIEGATE (COLEOPTERA: COCCINELLIDAE). JOURNAL OF CROP PROTECTION[Internet]. 2013;2(2):119-126. Available from: https://sid.ir/paper/616282/en

    IEEE: Copy

    NAYEREH HAMEDI, and SAEID MOHARRAMIPOUR, “LONG-TERM COLD RESPONSE IN OVERWINTERING ADULTS OF LADYBIRD HIPPODAMIA VARIEGATE (COLEOPTERA: COCCINELLIDAE),” JOURNAL OF CROP PROTECTION, vol. 2, no. 2, pp. 119–126, 2013, [Online]. Available: https://sid.ir/paper/616282/en

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