A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions
Cheyletus malaccensis (Oudemans) is a species of predatory mite, which is widely distributed in grain storage, and is a potential natural enemy of stored-product pests. Based on the typical temperatures and humidities that occur in granaries, the growth and development of C. malaccensis was studied...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | deu |
| Published: |
Julius Kühn-Institut
2018-11-01
|
| Series: | Julius-Kühn-Archiv |
| Subjects: | |
| Online Access: | https://www.openagrar.de/receive/openagrar_mods_00077974 |
| _version_ | 1827595648730398720 |
|---|---|
| author | Liu, Lu Cao, Yang He, Peihuan Sun, Weiwei Yu, Qing Wu, Yi |
| author_facet | Liu, Lu Cao, Yang He, Peihuan Sun, Weiwei Yu, Qing Wu, Yi |
| author_sort | Liu, Lu |
| collection | DOAJ |
| description | Cheyletus malaccensis (Oudemans) is a species of predatory mite, which is widely distributed in grain storage, and is a potential natural enemy of stored-product pests. Based on the typical temperatures and humidities that occur in granaries, the growth and development of C. malaccensis was studied at 24°C with different relative humidities (RH 65±2%, 75±2%, 85±2% and 95±2%). During this study, C. malaccensis was fed on Acarus siro (Linnaeus), a very important stored grain pest to investigate its potential to control this pest and production of this natural enemy in the laboratory. The results showed that C. malaccensis has five developmental stages, egg, larva, protonymph, deutonymph and adult. The deutonymph stage is absent in males. For females, the developmental time from egg to adult was shortest at 85±2 % RH and averaged 16.3 days; developmental time was longest at 65±2 % RH and averaged 18.6 days. The male mites in the 95±2% RH trials had the shortest developmental time which averaged 12.6 days; it was longest at 65±2% RH where it averaged 14.7 days. At 95±2 % RH, the male adult lived 83.5 d and its longevity from egg to adult was 95.8 d. Humidity had a significant effect on how long the adults lived and the duration of all developmental stages. At 85±2 % RH, the maximum average number of eggs per female, oviposition period and daily fecundity were 493.0, 46.2 d, and 10.3, respectively. This study provides basic biological parameters for C. malaccensis, a potential biological control agent for mite pests infesting stored grain. |
| first_indexed | 2024-03-09T02:56:31Z |
| format | Article |
| id | doaj.art-df58c919c4c0469e94727fd93e415264 |
| institution | Directory Open Access Journal |
| issn | 1868-9892 2199-921X |
| language | deu |
| last_indexed | 2024-03-09T02:56:31Z |
| publishDate | 2018-11-01 |
| publisher | Julius Kühn-Institut |
| record_format | Article |
| series | Julius-Kühn-Archiv |
| spelling | doaj.art-df58c919c4c0469e94727fd93e4152642023-12-05T05:44:54ZdeuJulius Kühn-InstitutJulius-Kühn-Archiv1868-98922199-921X2018-11-01463153754010.5073/jka.2018.463.117A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditionsLiu, Lu0Cao, Yang1He, Peihuan2Sun, Weiwei3 Yu, Qing4Wu, Yi5School of Food Science and Technology, Henan University of Technology, Zhengzhou, ChinaAcademy of State Grain Administration of China, Beijing, ChinaAcademy of State Grain Administration of China, Beijing, ChinaFood Science College, Nanjing University of Finance and Economics, Nanjing, ChinaAcademy of State Grain Administration of China, Beijing, ChinaAcademy of State Grain Administration of China, Beijing, ChinaCheyletus malaccensis (Oudemans) is a species of predatory mite, which is widely distributed in grain storage, and is a potential natural enemy of stored-product pests. Based on the typical temperatures and humidities that occur in granaries, the growth and development of C. malaccensis was studied at 24°C with different relative humidities (RH 65±2%, 75±2%, 85±2% and 95±2%). During this study, C. malaccensis was fed on Acarus siro (Linnaeus), a very important stored grain pest to investigate its potential to control this pest and production of this natural enemy in the laboratory. The results showed that C. malaccensis has five developmental stages, egg, larva, protonymph, deutonymph and adult. The deutonymph stage is absent in males. For females, the developmental time from egg to adult was shortest at 85±2 % RH and averaged 16.3 days; developmental time was longest at 65±2 % RH and averaged 18.6 days. The male mites in the 95±2% RH trials had the shortest developmental time which averaged 12.6 days; it was longest at 65±2% RH where it averaged 14.7 days. At 95±2 % RH, the male adult lived 83.5 d and its longevity from egg to adult was 95.8 d. Humidity had a significant effect on how long the adults lived and the duration of all developmental stages. At 85±2 % RH, the maximum average number of eggs per female, oviposition period and daily fecundity were 493.0, 46.2 d, and 10.3, respectively. This study provides basic biological parameters for C. malaccensis, a potential biological control agent for mite pests infesting stored grain.https://www.openagrar.de/receive/openagrar_mods_00077974cheyletus malaccensisdevelopmentreproductionbiological control |
| spellingShingle | Liu, Lu Cao, Yang He, Peihuan Sun, Weiwei Yu, Qing Wu, Yi A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions Julius-Kühn-Archiv cheyletus malaccensis development reproduction biological control |
| title | A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions |
| title_full | A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions |
| title_fullStr | A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions |
| title_full_unstemmed | A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions |
| title_short | A preliminary study of growth and development of Cheyletus malaccensis (Oudemans) under different humidity conditions |
| title_sort | preliminary study of growth and development of cheyletus malaccensis oudemans under different humidity conditions |
| topic | cheyletus malaccensis development reproduction biological control |
| url | https://www.openagrar.de/receive/openagrar_mods_00077974 |
| work_keys_str_mv | AT liulu apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT caoyang apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT hepeihuan apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT sunweiwei apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT yuqing apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT wuyi apreliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT liulu preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT caoyang preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT hepeihuan preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT sunweiwei preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT yuqing preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions AT wuyi preliminarystudyofgrowthanddevelopmentofcheyletusmalaccensisoudemansunderdifferenthumidityconditions |