Effects of low temperature on spider mite control by intermittent ultraviolet-B irradiation for practical use in greenhouse strawberries.
Effects of low temperature on spider mite control by intermittent ultraviolet-B irradiation for practical use in greenhouse strawberries.
复制标题
低温对间歇性紫外线 B 照射控制红蜘蛛的影响在温室草莓中的实际应用。
DOI：
10.1093/ee/nvx179
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发表时间：
2018
影响因子：
1.7
通讯作者：
M. Osakabe
中科院分区：
文献类型：
--
作者：
Nakai;K.;Y. Murata;M. Osakabe
紫外线b （UVB）辐射防治蜘蛛螨是日本温室草莓害虫综合治理的关键技术，具有挑战性。为了解决这个问题，同时使用植物类螨和减少UVB辐射是可取的，以确保在不受UVB辐射的地区的控制效果，并尽量减少冬季的晒伤。本研究设计了模拟UVB照射草莓下叶表面的实验，并在温室和低温条件下评估了夜间间歇性UVB照射对荨麻疹叶螨（叶螨科）存活和对加州小绥螨（蜱螨科）伤害的影响。午夜间歇UVB照射可有效抑制卵的孵化和幼虫的发育。在20°C （0.13 kJ m−2d−1）和25°C（70.8%的卵孵化）下，控制效果较好（无卵孵化）。相比之下，n。在25°C和20°C下，0.27 kJ m−2d−1的间歇性UVB照射对加州nicususeggs没有影响。然而，UVB辐照的残余效应为。结果表明，减少UVB的照射剂量对该植物产卵螨的存活率也有一定的促进作用。加州螨表现出光再激活能力，而它们的UVB耐受性则因猎物种类而提高，表明植物螨的改善可能是通过饮食来实现的。减少UVB剂量并同时施用植物螨，提高了UVB法在草莓温室IPM策略中的可靠性。
The application of ultraviolet-B (UVB) radiation to control spider mites is challenging as a key technology for integrated pest management (IPM) in greenhouse strawberries in Japan. To address this, concurrent use of phytoseiid mites and reduced UVB irradiance is desirable to ensure control effects in areas shaded from UVB radiation and to minimize the sunscald in winter, respectively. We designed experiments reproducing the UVB dose on the lower leaf surfaces in strawberry and evaluated the effects of intermittent UVB irradiation at midnight for practical application in the greenhouse and low temperature on the survival of the spider miteTetranychus urticaeKoch (Acari: Tetranychidae) and damage to the phytoseiid miteNeoseiulus californicus(McGregor) (Acari: Phytoseiidae). The midnight intermittent UVB irradiation effectively suppressed egg hatching and development of larvae ofT. urticae, and the control effect was reinforced at 20°C (no eggs hatched at 0.13 kJ m−2d−1) rather than, at 25°C (70.8% eggs hatched). In contrast, the hatchability ofN. californicuseggs was unaffected by intermittent UVB irradiation at 0.27 kJ m−2d−1at 25°C and 20°C. However, residual effects of UVB irradiation toN. californicuseggs on survival of hatched larvae were seen, so that reducing the UVB dose is also advantageous for this phytoseiid mite.N. californicusshowed a photoreactivation capacity, whereas their UVB tolerance was improved by prey species, suggesting the possibility of the improvement of phytoseiid mites by diet. The reduction of UVB dose and concurrent use of phytoseiid mites increase reliability of the UVB method in IPM strategies in strawberry greenhouse.