Phytosanitary irradiation of peach fruit moth (Lepidoptera: Carposinidae) in apple fruits
文献类型: 外文期刊
第一作者: Zhan, Guoping
作者: Zhan, Guoping;Li, Baishu;Liu, Bo;Wang, Yuejin;Liu, Tao;Ren, Lili;Gao, Meixu
作者机构:
关键词: Phytosanitary irradiation;Carposina sasakii;Peach fruit moth;Irradiation;Apple
期刊名称:RADIATION PHYSICS AND CHEMISTRY ( 影响因子:2.858; 五年影响因子:2.411 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Peach fruit moth, Carposina sasakii Matsumura, is a serious pest of many pome and stone fruits and presents a quarantine problem in some export markets. It is widely distributed in pome fruit production areas in China, Japan, Korea, North Korea and the Far Eastern Federal District of Russia. In this investigation, gamma radiation dose-response tests were conducted with late eggs (5-d-old) and various larval stages, followed by large-scale confirmatory tests on the most tolerant stage in fruit, the fifth instar. The dose-response tests, with the target radiation dose of 20 (late eggs), 40, 60, 80,100,120,140, and 160 Gy (late fifth instars in vitro) respectively applied to all stages, showed that the tolerance to radiation increased with increasing age and developmental stage. The fifth instar (most advanced instar in fruits) was determined to be the most tolerant stage requiring an estimated minimum absorbed dose of 208.6 Gy (95% Cl: 195.0, 226.5 Gy) to prevent adult emergence at 99.9968% efficacy (95% confidence level). In the confirmatory tests, irradiation was applied to 30,850 late fifth instars in apple fruits with a target dose of 200 Gy (171.6-227.8 Gy measured), but only 4 deformed adults emerged that died 2 d afterwards without laying eggs. A dose of 228 Gy may be recommended as a phytosanitary irradiation treatment under ambient atmosphere for the control of peach fruit moth on all commodities with an efficacy of 99.9902% at 95% confidence level.
分类号: O43`O64
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