Department of Agronomy, Food, Natural resources, Animals, Environment (DAFNAE), University of Padua, Legnaro, Italy.
Pest Manag Sci. 2024 Dec;80(12):6251-6261. doi: 10.1002/ps.8354. Epub 2024 Aug 6.
The brown marmorated stink bug, Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae) is an invasive pest that causes economic damage on crops, decreasing fruit yield and quality. Conventional insecticides are frequently used to reduce infestations, but these are often with a limited residual effect, besides being costly and detrimental to nontarget organisms and the environment. In integrated pest management, novel strategies against H. halys are proposed, such as the use of alternative substances with an effect on insect behaviour and mobility. As one of the oldest multi-site fungicides applied against fungal pathogens and as an insecticide and acaricide to control scales and mites, sulfur is proposed here to reduce H. halys infestation in fruit orchards.
Field experiments were performed to evaluate the effect of repeated wettable sulfur applications on H. halys in apple and pear orchards. Sulfur-induced plant phytotoxicity effects and quanti-qualitative parameters on apple fruits were also recorded. Halyomorpha halys infestation was significantly reduced in sulfur-treated compared to untreated pears and apples. Furthermore, sulfur sprays reduced fruit damage caused by H. halys. Besides, sulfur-mediated phytotoxicity such as symptoms on leaves and fruit drop were not observed. Fruit quality was not influenced by sulfur treatments.
Wettable sulfur seems to be a promising formulation given the low phytotoxicity, considering the technical aspects for an effective use of sulfur-based products to counteract H. halys in pome fruit orchards. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
褐带长蝽（Halyomorpha halys）（半翅目：蝽科）是一种入侵性害虫，对农作物造成经济损害，降低水果产量和质量。为了减少虫害，经常使用常规杀虫剂，但这些杀虫剂通常残留效果有限，而且成本高，对非目标生物和环境有害。在综合虫害管理中，针对 H. halys 提出了新的策略，例如使用对昆虫行为和移动性有影响的替代物质。硫磺作为一种古老的多用途杀菌剂，用于防治真菌病原体，以及作为杀虫剂和杀螨剂来防治介壳虫和螨虫，被提议用于减少果园中 H. halys 的侵染。
在苹果和梨园进行了田间试验，以评估重复施用可湿性硫磺对 H. halys 的影响。还记录了硫磺对苹果果实产生的植物毒性效应和定量定性参数。与未处理的梨树和苹果树相比，硫磺处理的梨树和苹果树上的 H. halys 侵染明显减少。此外，硫磺喷雾减少了 H. halys 对果实造成的损害。此外，没有观察到硫磺介导的植物毒性，如叶片和果实脱落的症状。硫磺处理对果实品质没有影响。
可湿性硫磺似乎是一种很有前途的制剂，因为其植物毒性低，考虑到基于硫磺的产品在有效防治苹果园褐带长蝽方面的技术方面。© 2024 作者。害虫管理科学由 John Wiley & Sons Ltd 代表化学工业协会出版。
