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Effects of X-ray irradiation on development and reproduction of the oriental tobacco budworm, Helicoverpa assulta (Lepidoptera: Noctuidae).
- Source :
- Entomological Research; Jul2017, Vol. 47 Issue 4, p270-276, 7p
- Publication Year :
- 2017
-
Abstract
- All stages of the life cycle of Helicoverpa assulta were irradiated with X-rays to determine the inhibitory dose for development and reproduction to serve as a quarantine treatment. The 100-Gy dose was effective for irradiation of eggs and larvae, and the 200-Gy dose was effective for pupae and mixed-sex adults. When either adult males or females were irradiated, however, 500 Gy was required to prevent the F1 eggs from hatching, and thus single-sex adults required much higher doses of X-ray irradiation. To gather confirmatory data applicable to phytosanitary quarantine regulations, pupae-the immature stage most resistant to X-ray irradiation-were placed inside paprika in boxes for exportation and were irradiated with 300 Gy as a small-scale confirmatory test. The dose given to 1,007 individual pupae resulted in 12.62 % survival, and 1.79 % of pupae emerged as normal adults; however, these adults produced only a few eggs that did not hatch, suggesting that a minimum dose of 300 Gy of X-ray irradiation will provide quarantine security for immature H. assulta in paprika exports. [ABSTRACT FROM AUTHOR]
- Subjects :
- HELICOVERPA
NOCTUIDAE
TOBACCO budworm
QUARANTINE
X-rays
EGGS
Subjects
Details
- Language :
- English
- ISSN :
- 17382297
- Volume :
- 47
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Entomological Research
- Publication Type :
- Academic Journal
- Accession number :
- 124315141
- Full Text :
- https://doi.org/10.1111/1748-5967.12242