Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang
Chinese silkworm (<i>Antheraea pernyi</i>) eggs are used as factitious hosts of <i>Anastatus fulloi</i>, and refrigeration of these eggs is essential for large-scale rearing of <i>A. fulloi</i>. We studied the effects of cold storage of <i>A. pernyi</i>...
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MDPI AG
2021-11-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/12/12/1057 |
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| author | Can Zhao Baoxin Zhang Zixin Liu Huiyun Zhang Dunsong Li |
| author_facet | Can Zhao Baoxin Zhang Zixin Liu Huiyun Zhang Dunsong Li |
| author_sort | Can Zhao |
| collection | DOAJ |
| description | Chinese silkworm (<i>Antheraea pernyi</i>) eggs are used as factitious hosts of <i>Anastatus fulloi</i>, and refrigeration of these eggs is essential for large-scale rearing of <i>A. fulloi</i>. We studied the effects of cold storage of <i>A. pernyi</i> eggs on egg quality and the fitness of <i>A. fulloi</i> reared on the eggs. Four cold storage treatments and two cold storage periods were assessed. The 0–3 °C refrigerator treatment was unsuitable for long-term (>70 days) storage. Cold storage at −5 °C and −18 °C increased the loss rate of <i>A. pernyi</i> eggs, but there was no significant difference between the control and 0–3 °C water bath treatment. The parasitism rate of <i>A. fulloi</i> was reduced when <i>A. pernyi</i> eggs were refrigerated for 6 or 12 months. There were no obvious differences in eclosion rate and percentage of females between control and eggs subjected to 6-month storage in 0–3 °C, −5 °C, and −18 °C water bath treatments. However, the eclosion rate and percentage of females decreased sharply when the storage period was 12 months. The overall eclosion rate of <i>A. fulloi</i> was reduced at the prolonged refrigeration time. Cold storage reduced host egg quality and their fitness suitability for <i>A. fulloi.</i> To minimize losses in the large-scale rearing of <i>A. fulloi</i>, <i>A. pernyi</i> eggs should be refrigerated in a 0–3 °C or −5 °C water bath treatment, and the storage period should not exceed 6 months. |
| first_indexed | 2024-03-10T03:52:39Z |
| format | Article |
| id | doaj.art-606ffd5833ac4a1da34a581e59e57ffe |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-10T03:52:39Z |
| publishDate | 2021-11-01 |
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| record_format | Article |
| series | Insects |
| spelling | doaj.art-606ffd5833ac4a1da34a581e59e57ffe2023-11-23T08:52:16ZengMDPI AGInsects2075-44502021-11-011212105710.3390/insects12121057Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and WangCan Zhao0Baoxin Zhang1Zixin Liu2Huiyun Zhang3Dunsong Li4Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, ChinaLaboratory of Bio-Pesticide Creation and Application of Guangdong Province, Department of Entomology, College of Plant Protection, South China Agricultural University, Guangzhou 510642, ChinaInstitute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, ChinaGuangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, ChinaChinese silkworm (<i>Antheraea pernyi</i>) eggs are used as factitious hosts of <i>Anastatus fulloi</i>, and refrigeration of these eggs is essential for large-scale rearing of <i>A. fulloi</i>. We studied the effects of cold storage of <i>A. pernyi</i> eggs on egg quality and the fitness of <i>A. fulloi</i> reared on the eggs. Four cold storage treatments and two cold storage periods were assessed. The 0–3 °C refrigerator treatment was unsuitable for long-term (>70 days) storage. Cold storage at −5 °C and −18 °C increased the loss rate of <i>A. pernyi</i> eggs, but there was no significant difference between the control and 0–3 °C water bath treatment. The parasitism rate of <i>A. fulloi</i> was reduced when <i>A. pernyi</i> eggs were refrigerated for 6 or 12 months. There were no obvious differences in eclosion rate and percentage of females between control and eggs subjected to 6-month storage in 0–3 °C, −5 °C, and −18 °C water bath treatments. However, the eclosion rate and percentage of females decreased sharply when the storage period was 12 months. The overall eclosion rate of <i>A. fulloi</i> was reduced at the prolonged refrigeration time. Cold storage reduced host egg quality and their fitness suitability for <i>A. fulloi.</i> To minimize losses in the large-scale rearing of <i>A. fulloi</i>, <i>A. pernyi</i> eggs should be refrigerated in a 0–3 °C or −5 °C water bath treatment, and the storage period should not exceed 6 months.https://www.mdpi.com/2075-4450/12/12/1057biological controlmass rearingnatural enemy<i>Anastatus</i>host eggs |
| spellingShingle | Can Zhao Baoxin Zhang Zixin Liu Huiyun Zhang Dunsong Li Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang Insects biological control mass rearing natural enemy <i>Anastatus</i> host eggs |
| title | Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang |
| title_full | Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang |
| title_fullStr | Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang |
| title_full_unstemmed | Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang |
| title_short | Effects of Cold Storage on Host <i>Antheraea pernyi</i> Egg Quality for the Egg Parasitoid <i>Anastatus fulloi</i> Sheng and Wang |
| title_sort | effects of cold storage on host i antheraea pernyi i egg quality for the egg parasitoid i anastatus fulloi i sheng and wang |
| topic | biological control mass rearing natural enemy <i>Anastatus</i> host eggs |
| url | https://www.mdpi.com/2075-4450/12/12/1057 |
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