Abstract：
This study explores sustainable agricultural practices by examining the role of organic materials in enhancing native predatory mites for controlling spider mites in apple orchards. Developing techniques to conserve indigenous natural enemies is vital for sustainable agricultural production. Phytoseiid mites can control spider mites, which are among the most significant pests in apple production. To conserve phytoseiid mite populations, it is important to identify alternative prey and to determine their role in phytoseiid mite proliferation. We demonstrated that the concurrent use of specific organic fertilizers and coconut husks can increase prey Tyrophagus mites, thereby enhancing phytoseiid mite density. Our research was conducted using sticky traps at the Miyagi Prefectural Agriculture and Horticulture Research Center in Japan. The occurrence of Tyrophagus mites was significantly correlated with the occurrence of phytoseiid mites in 2 years. In laboratory experiments, the use of organic fertilizers increased the density of Tyrophagus mites by 83 × within 4 weeks. Several species of phytoseiid mites were able to lay between 0.25 and 1.03 eggs per day per female by preying on Tyrophagus larvae. A 2-year field survey revealed that the use of organic fertilizers more than doubled the density of phytoseiid mites on apple leaves, likely through promoting Tyrophagus mite proliferation on the ground. These results highlight the potential of organic fertilizers not only to enhance soil nutrients, but also to boost phytoseiid mite populations, thereby contributing to more sustainable apple production.
摘要：
这项研究通过研究有机材料在增强天然捕食性螨控制苹果园中蜘蛛螨中的作用，探索了可持续的农业实践。开发保护土著天敌的技术对于可持续农业生产至关重要。植物类螨能控制蜘蛛螨,这是苹果生产中最重要的害虫之一。为了保护植物性螨种群，确定替代猎物并确定它们在植物螨增殖中的作用很重要。我们证明，同时使用特定的有机肥料和椰子壳可以增加猎物Tyrophagus螨，从而提高植物螨密度。我们的研究是在日本宫城县农业和园艺研究中心使用粘性陷阱进行的。2年内，芦苇螨的发生与植物性螨的发生显着相关。在实验室实验中,有机肥料的使用在4周内使Tyrophagus螨的密度增加了83倍。通过捕食Tyrophagus幼虫，几种植物类螨每天能够产下0.25至1.03卵。一项为期两年的实地调查显示，有机肥料的使用使苹果叶片上的植物螨密度增加了一倍以上，可能是通过促进Tyrophagus螨在地面上的扩散。这些结果凸显了有机肥料不仅可以增强土壤养分的潜力，而且为了增加植物类螨的数量，从而促进更可持续的苹果生产。
