The Effect of Cold Storage on the Survival of Coccinella undecimpunctata

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The Effect of Cold Storage on the Survival of
Coccinella undecimpunctata

• Cary Langley
• Biology Department
• Eastern CT State University

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Possible storage of Coccinella undecimpunctata
(Col., Coccinellidae) under low temperature and
its effect on some biological characteristicsA.
H. Abdel-Salam and N. F. Abdel-Baky The Journal
of Applied EntomologyVol. 124 169-176
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Coccinella undecimpunctata

• Common Name Eleven Spotted Lady Beetle

• Predators of
  
• ? Aphids
  Whiteflies Weevils

• Biological Control Agents

• Cold Stored for Shipping Purposes

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Why Study Cold Storage of Coccinella
undecimpunctata

• Survival of Cold Temperatures
• Developmental Stages Surviving the Cold
• Developmental Stage Best Used for Short and
  Long-Term Shipping

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Cold Storage Effect
Stages Used

• Egg
• First, Second, Third Fourth Larval Instars
  
• Pupae
• Adults Directly After Eclosion Without Food
  Five Days After Eclosion
  With Food
  Ten Days After Eclosion With Food
• Refrigerated At 6C
• Refrigerated For 7, 15, 30, 45, 60 Days

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Results of the Study
Hatching Success of Refrigerated Eggs
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Larval Instars Success Rate
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Larval Instars Success Rate
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Larval Instars Success Rate
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Larval Instars Success Rate
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Pupae Success Rate
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Adults Success Rate
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Adults Success Rate
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Adults Success Rate
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Final Thoughts

• Eggs, Larval Instars Pupae Survived Short-Term
  Storage, 7 Days
• Adult Storage More Long-Term, 45 Days
  Due to Diapause
• Simple Method for Storing Large Numbers
• Easy Shipping
• Synchronization With Insect Pest
• Suppress Insect Pests When Required
  

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In Conclusion

• Cold Stored
• Fed Adults Are Most Receptive
• Biological Control Agents

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