An experiment was conducted to investigate the suitability for overwintering of polyphagous arthropods of five different grass species (Arrhenatherum elatius, Dactylis glomerata, Phleum pratense, Festuca rubra and Cynosurus cristatus) and a natural regeneration treatment on mid-field overwintering refuges (beetle banks). Polyphagous predator density and composition differed significantly between the six treatments with A. elatius and D. glomerata supporting the highest predator densities and C. cristatus and the treatments left to regenerate naturally having the lowest. The results are discussed in terms of species composition within the different treatments, cost of creating a beetle bank, and the implications for the biological control of cereal aphids.
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机译:一个实验进行了探讨适合的杂食性的过冬五种不同的草的节肢动物Phleum pratense, Festuca rubra and Cynosuruscristatus)和自然再生治疗在中场位置过冬避难所(甲虫银行)。组成差别显著6 a . elatius和d . glomerata治疗支持和C捕食者密度最高的国家。cristatus治疗和再生自然拥有最低的。讨论了内物种组成不同的治疗方法,创建一个成本甲虫银行,和影响蚜虫生物防治的谷物早餐食品。
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