<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The sensitivity of different developmental stages of greater wax moth (<italic>Galleria mellonella</italic> L.) eggs to gamma irradiation was examined. Eggs, 25 to 144 h-old, were exposed at 48 h intervals to gamma radiation dosages (50 to 400 Gy), and the effects on egg hatch, pupation and adult emergence were investigated. The developmental rate of irradiated-egg larvae and pupae to adult stage was also studied. Results showed that the irradiation sensitivity of <italic>G. mellonella</italic> eggs decreased with increased age of the eggs when irradiated. In 25–48 h-old eggs, 50 Gy dose significantly reduced egg hatch and at 200 Gy dose no egg hatch was observed. Eggs 73–96 h-old were slightly more tolerant to irradiation treatment; hatching completely ceased at 250 Gy dose. Sensitivity to gamma irradiation reached its lowest level however when 121–144 h-old eggs (few h. before egg hatch) were irradiated. 350 Gy dose reduced egg hatch to about 3%, and at 400 Gy no egg hatch was noted. Survival to the adult stage was also negatively affected. At the most radio-tolerant stage (121–144 h-old), 100 Gy dose significantly reduced larval survival to the adult stage and 300 Gy completely prevented it. The development rate of larvae and pupae resulting from irradiated eggs was also negatively affected.</p></abstract>

The sensitivity of different developmental stages of greater wax moth (Galleria mellonella L.) eggs to gamma irradiation was examined. Eggs, 25 to 144 h-old, were exposed at 48 h intervals to gamma radiation dosages (50 to 400 Gy), and the effects on egg hatch, pupation and adult emergence were investigated. The developmental rate of irradiated-egg larvae and pupae to adult stage was also studied. Results showed that the irradiation sensitivity of G. mellonella eggs decreased with increased age of the eggs when irradiated. In 25–48 h-old eggs, 50 Gy dose significantly reduced egg hatch and at 200 Gy dose no egg hatch was observed. Eggs 73–96 h-old were slightly more tolerant to irradiation treatment; hatching completely ceased at 250 Gy dose. Sensitivity to gamma irradiation reached its lowest level however when 121–144 h-old eggs (few h. before egg hatch) were irradiated. 350 Gy dose reduced egg hatch to about 3%, and at 400 Gy no egg hatch was noted. Survival to the adult stage was also negatively affected. At the most radio-tolerant stage (121–144 h-old), 100 Gy dose significantly reduced larval survival to the adult stage and 300 Gy completely prevented it. The development rate of larvae and pupae resulting from irradiated eggs was also negatively affected.

Radiation Disinfestation of Honeybee Combs Infested with Greater Wax Moth Eggs

Journal of Apicultural Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Radiation Disinfestation of Honeybee Combs Infested with Greater Wax Moth Eggs"}

The sensitivity of different developmental stages of greater wax moth (Galleria mellonella L.) eggs to gamma irradiation was examined. Eggs, 25 to 144 h-old,...

Radiation Disinfestation of Honeybee Combs Infested with Greater Wax Moth Eggs

Article Category: Original Article

Published Online: Jul 02, 2020

Page range: 37 - 46

Received: Mar 05, 2019

Accepted: Feb 24, 2020

DOI: https://doi.org/10.2478/jas-2020-0008

Keywords
egg stage, irradiation, radiation disinfestation

© 2020 Mohammed Mansour, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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Radiation Disinfestation of Honeybee Combs Infested with Greater Wax Moth Eggs

Article Category: Original Article

Published Online: Jul 02, 2020

Page range: 37 - 46

Received: Mar 05, 2019

Accepted: Feb 24, 2020

DOI: https://doi.org/10.2478/jas-2020-0008

Keywordsegg stage, irradiation, radiation disinfestation

© 2020 Mohammed Mansour, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Keywords
egg stage, irradiation, radiation disinfestation