Irradication disinfestation of asparagus spears contaminated with Brachycorynella asparagi (Mordvilko) (Homoptera: Aphididae)
Asparagus spears infested with the aphid Brachycorynella asparagi (Mordvilko) were used to determine effects of gamma irradiation upon aphids. At 20 degrees C, all second instars died at doses as low as 5 Gy; adults died at doses above 10 Gy. Doses above 80 Gy prevented both the molt from fourth instar to adult and the production of progeny by adults. No live progeny were produced at doses above 10 Gy. At 2.2 degrees C, 3- to 6-fold increases in dose or time after treatment were required to achieve effects seen at 20 degrees C. Results suggest that a dose of 100 Gy applied at 20 degrees C would suffice as a quarantine treatment
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| Format: | biblioteca |
| Published: |
Jun
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| Subjects: | TRATAMIENTOS CUARENTENARIOS, APHIDOIDEA, AFIDOS, BRACHYCORYNELLA ASPARAGI, ASPARAGUS, RADIACION GAMMA, CONTROL DE INSECTOS, DESINFECCION, IRRADIACION, |
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| Summary: | Asparagus spears infested with the aphid Brachycorynella asparagi (Mordvilko) were used to determine effects of gamma irradiation upon aphids. At 20 degrees C, all second instars died at doses as low as 5 Gy; adults died at doses above 10 Gy. Doses above 80 Gy prevented both the molt from fourth instar to adult and the production of progeny by adults. No live progeny were produced at doses above 10 Gy. At 2.2 degrees C, 3- to 6-fold increases in dose or time after treatment were required to achieve effects seen at 20 degrees C. Results suggest that a dose of 100 Gy applied at 20 degrees C would suffice as a quarantine treatment |
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