the effect of cold storage on the survival of coccinella undecimpunctata cary langley biology...
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![Page 1: The Effect of Cold Storage on the Survival of Coccinella undecimpunctata Cary Langley Biology Department Eastern CT State University](https://reader035.vdocuments.mx/reader035/viewer/2022062618/55151598550346a87d8b4cb8/html5/thumbnails/1.jpg)
The Effect of Cold Storage on the Survival of
Coccinella undecimpunctata
Cary LangleyBiology 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 characteristics
A. 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
• 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 6°C
• Refrigerated For 7, 15, 30, 45, 60 Days
Stages Used
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Results of the Study
010203040506070
Eggs Hatched (%)
7 15 30 45 60
Storage Periods (Days)
Hatching Success of Refrigerated Eggs
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0
20
40
60
80
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Survival of Larval Instars
(%)
7 15 30 45 60Storage Periods (Days)
1st LarvalInstar
2nd LarvalInstar
3rd LarvalInstar
4th LarvalInstar
Larval Instars Success Rate
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0
20
40
60
80
100
Survival of Larval Instars
(%)
7 15 30 45 60Storage Periods (Days)
1st LarvalInstar
2nd LarvalInstar
3rd LarvalInstar
4th LarvalInstar
Larval Instars Success Rate
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0
20
40
60
80
100
Survival of Larval Instars
(%)
7 15 30 45 60Storage Periods (Days)
1st LarvalInstar
2nd LarvalInstar
3rd LarvalInstar
4th LarvalInstar
Larval Instars Success Rate
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0
10
20
30
40
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60
70
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100
Survival of Larval Instars
(%)
7 15 30 45 60Storage Periods (Days)
1stLarvalInstar
2ndLarvalInstar
3rdLarvalInstar
4thLarvalInstar
Larval Instars Success Rate
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0102030405060708090
Adults Emerged from Stored Pupae (%)
7 15 30 45 60Storage Periods (Days)
Pupae Success Rate
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Adults Success Rate
0
10
20
30
40
50
60
70
80
90
100
Survival of Adults (%)
7 15 30 45 60
Storage Periods (Days)
Emergence
5 Days
10 Days
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Adults Success Rate
0
10
20
30
40
50
60
70
80
90
100
Survival of Adults (%)
7 15 30 45 60
Storage Periods (Days)
Emergence
5 Days
10 Days
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Adults Success Rate
0
10
20
30
40
50
60
70
80
90
100
Survival of Adults (%)
7 15 30 45 60
Storage Periods (Days)
Emergence
5 Days
10 Days
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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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