Impatiens glandulifera, or Himalayan balsam, is a prolific invader of riverine habitats. Introduced from the Himalayas for ornamental purposes in 1839, this annual species has naturalised across Great Britain (GB) forming dense monocultures with negative affects across whole ecosystems. In 2006 a programme exploring biocontrol as an alternative control method was initiated and to date, two strains of the rust fungus Puccinia komarovii var. glanduliferae have been released. To better understand the observed differences in susceptibility of GB Himalayan balsam stands to the two rust strains, inoculation studies were conducted using urediniospores and basidiospores. Experiments revealed large variation in the susceptibility of stands to urediniospores of the two rust strains, with some resistant to both. Furthermore, the infectivity of basidiospores was found to differ, with some stands fully susceptible to the urediniospore stage, being immune to basidiospore infection. Therefore, before further rust releases at new sites, it is necessary to ensure complete compatibility of the invasive stands with both urediniospores and basidiospores. However, for successful control across GB it is essential that plant biotypes are matched to the most virulent rust strains. This will involve additional strains from the native range to tackle those biotypes resistant to the strains currently released.

凤仙花或喜马拉雅香脂是河流栖息地的多产入侵者。1839 年从喜马拉雅山脉引入，用于观赏，这一一年生物种已在英国 (GB) 归化，形成密集的单一栽培，对整个生态系统产生负面影响。2006 年启动了一项探索生物防治作为替代防治方法的计划，迄今为止，锈菌 Puccinia komarovii var. 的两个菌株已启动。腺体已被释放。为了更好地了解所观察到的 GB 喜马拉雅香脂对两种锈病菌株的敏感性差异，使用乌氏孢子和担子孢子进行了接种研究。实验表明，林分对两种锈病菌株的乌氏孢子的敏感性存在很大差异，有些对这两种锈病都具有抗性。此外，发现担子孢子的感染性不同，有些林分完全易感于乌氏孢子阶段，对担子孢子感染免疫。因此，在新地点进一步锈蚀释放之前，有必要确保入侵林分与乌氏孢子和担子孢子完全兼容。然而，为了成功控制 GB，植物生物型必须与毒性最强的锈菌相匹配。