Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae)
Abstract The performance of parasitism by the egg parasitoid, Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) on eggs of Angoumois grain moth, Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) was investigated under cold storage and gamma irradiation treatments of the host eg...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
SpringerOpen
2019-12-01
|
Series: | Egyptian Journal of Biological Pest Control |
Subjects: | |
Online Access: | https://doi.org/10.1186/s41938-019-0189-6 |
id |
doaj-16afbe1728e0429d950152d43e409d7b |
---|---|
record_format |
Article |
spelling |
doaj-16afbe1728e0429d950152d43e409d7b2020-12-13T12:18:43ZengSpringerOpenEgyptian Journal of Biological Pest Control2536-93422019-12-012911510.1186/s41938-019-0189-6Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae)Naglaa F. Abdel-Hameid0I. R. M. Elzoghby1A. L. Mehany2W. A. A. Sayed3Plant Protection Department, Faculty of Agriculture, Benha UniversityPlant Protection Department, Faculty of Agriculture and Natural Resources, Aswan UniversityPlant Research Department, Nuclear Research Center, Atomic Energy AuthorityBiological Applications Department, Nuclear Research Center, Atomic Energy AuthorityAbstract The performance of parasitism by the egg parasitoid, Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) on eggs of Angoumois grain moth, Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) was investigated under cold storage and gamma irradiation treatments of the host eggs. Cold storage treatment could improve the parasitoid mass rearing techniques and reduced the costs of biological control programs, while gamma irradiation might be used as a supplementary support at the times of high demand. The suitability of the S. cerealella eggs, stored at – 20 °C for 0.5, 1, or 2 h. as a host for T. evanescens was evaluated. The sensitivity of S. cerealella eggs to gamma irradiation treatments and the acceptability of irradiated eggs for parasitism by T. evanescens females for the parental P and F1 generations were examined. The results revealed that parasitism was drastically reduced more than adult’s emergence and sex-ratio (% of females) after cold storage periods of S. cerealella eggs. Moreover, the parasitism percentages were relatively reduced to (97.1, 96.1, 93.03, and 92.7 %) after irradiating the S. cerealella eggs at 40, 60, 80, and 100 Gy, respectively than the control (97.3% emergence). The percentages of emergence and females’ percent were slightly decreased by gamma irradiation doses, while, equal preferred by the F1 generation of parasitoid that produced from irradiated S. cerealella eggs.https://doi.org/10.1186/s41938-019-0189-6IrradiationCold storageEggsSitotroga cerealellaTrichogramma evanescens |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Naglaa F. Abdel-Hameid I. R. M. Elzoghby A. L. Mehany W. A. A. Sayed |
spellingShingle |
Naglaa F. Abdel-Hameid I. R. M. Elzoghby A. L. Mehany W. A. A. Sayed Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) Egyptian Journal of Biological Pest Control Irradiation Cold storage Eggs Sitotroga cerealella Trichogramma evanescens |
author_facet |
Naglaa F. Abdel-Hameid I. R. M. Elzoghby A. L. Mehany W. A. A. Sayed |
author_sort |
Naglaa F. Abdel-Hameid |
title |
Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) |
title_short |
Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) |
title_full |
Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) |
title_fullStr |
Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) |
title_full_unstemmed |
Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) |
title_sort |
cold storage and gamma irradiation of sitotroga cerealella olivier eggs (lepidoptera: gelechiidae) in relation to the success of parasitism by trichogramma evanescens westwood (hymenoptera: trichogrammatidae) |
publisher |
SpringerOpen |
series |
Egyptian Journal of Biological Pest Control |
issn |
2536-9342 |
publishDate |
2019-12-01 |
description |
Abstract The performance of parasitism by the egg parasitoid, Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) on eggs of Angoumois grain moth, Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) was investigated under cold storage and gamma irradiation treatments of the host eggs. Cold storage treatment could improve the parasitoid mass rearing techniques and reduced the costs of biological control programs, while gamma irradiation might be used as a supplementary support at the times of high demand. The suitability of the S. cerealella eggs, stored at – 20 °C for 0.5, 1, or 2 h. as a host for T. evanescens was evaluated. The sensitivity of S. cerealella eggs to gamma irradiation treatments and the acceptability of irradiated eggs for parasitism by T. evanescens females for the parental P and F1 generations were examined. The results revealed that parasitism was drastically reduced more than adult’s emergence and sex-ratio (% of females) after cold storage periods of S. cerealella eggs. Moreover, the parasitism percentages were relatively reduced to (97.1, 96.1, 93.03, and 92.7 %) after irradiating the S. cerealella eggs at 40, 60, 80, and 100 Gy, respectively than the control (97.3% emergence). The percentages of emergence and females’ percent were slightly decreased by gamma irradiation doses, while, equal preferred by the F1 generation of parasitoid that produced from irradiated S. cerealella eggs. |
topic |
Irradiation Cold storage Eggs Sitotroga cerealella Trichogramma evanescens |
url |
https://doi.org/10.1186/s41938-019-0189-6 |
work_keys_str_mv |
AT naglaafabdelhameid coldstorageandgammairradiationofsitotrogacerealellaoliviereggslepidopteragelechiidaeinrelationtothesuccessofparasitismbytrichogrammaevanescenswestwoodhymenopteratrichogrammatidae AT irmelzoghby coldstorageandgammairradiationofsitotrogacerealellaoliviereggslepidopteragelechiidaeinrelationtothesuccessofparasitismbytrichogrammaevanescenswestwoodhymenopteratrichogrammatidae AT almehany coldstorageandgammairradiationofsitotrogacerealellaoliviereggslepidopteragelechiidaeinrelationtothesuccessofparasitismbytrichogrammaevanescenswestwoodhymenopteratrichogrammatidae AT waasayed coldstorageandgammairradiationofsitotrogacerealellaoliviereggslepidopteragelechiidaeinrelationtothesuccessofparasitismbytrichogrammaevanescenswestwoodhymenopteratrichogrammatidae |
_version_ |
1724384855708401664 |