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首页> 外文期刊>Conservation Evidence >Chemical control of the invasive non-native shrub murtilla Ugni molinae in mountain scrub on Robinson Crusoe Island, Juan Fernandez Archipelago, Chile
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Chemical control of the invasive non-native shrub murtilla Ugni molinae in mountain scrub on Robinson Crusoe Island, Juan Fernandez Archipelago, Chile

机译：智利胡安·费尔南德斯群岛鲁滨逊漂流记岛上山灌丛中侵入性非原生灌木变种紫薇Ugni molinae的化学控制

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The Juan Fernandez Archipelago is a global biodiversity hotspot, where 67% of plant species are endemic, but competition with invasive plants threatens many native plant species with extinction. Murtilla Ugni molinae is a prevalent invasive plant in the archipelago which displaces native vegetation. This study aimed to determine an efficient one-time control method for murtilla that required little or no follow-up. We used an adaptive management framework to conduct chemical control trials of murtilla in order to identify an effective treatment. Eight different combinations of chemical treatments and manual cutting were tested in four trials between 2015 and 2017. The herbicides Rango (glyphosate) and Garlon 4 (triclopyr) were tested along with a surfactant, an emulsifier, ammonium sulphate and urea. Cutting stems at the base followed by stump application of triplocyr proved ineffective. All other treatments used foliar spraying. The most effective treatment was a foliar application of 3% triclopyr, 2% glyphosate and 15g/l of urea diluted in water, which completely eliminated murtilla in 12 months. This treatment can be used for the control of murtilla over large areas and may also be useful to control other invasive shrubs that have leaves with thick cuticles resistant to herbicide absorption.
机译：胡安·费尔南德斯群岛是全球生物多样性热点，那里67％的植物是地方性物种，但与入侵植物的竞争威胁到许多本土植物的灭绝。 Murtilla Ugni molinae是群岛上的一种入侵植物，它取代了本地植被。这项研究旨在确定一种有效的一次性控制玉米白粉病的方法，只需很少或不需要随访。为了确定有效的治疗方法，我们使用了一种适应性管理框架进行了牡蛎的化学控制试验。在2015年至2017年之间的四项试验中，测试了化学处理和手动切割的八种不同组合。对除草剂Rango（草甘膦）和Garlon 4（草铵膦）以及表面活性剂，乳化剂，硫酸铵和尿素进行了测试。事实证明，在根部切开茎杆，然后残存三叉戟无效。所有其他处理均采用叶面喷洒。最有效的治疗方法是叶面喷施3％triclopyr，2％草甘膦和15g / l稀释在水中的尿素，在12个月内完全消除了白粉病。这种处理方法可用于大面积控制玉米粉刺，也可用于控制其他侵入性灌木，这些灌木的叶子具有厚厚的表皮，耐除草剂吸收。

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