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首页> 外文期刊>Journal of Arboriculture >The efficacy of micro-injected imidacloprid and oxydemeton-methyl on red gum eucalyptus trees (Eucalyptus camaldulensis) infested with red gum lerp psyllid (Glycaspis brimblecombei)
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The efficacy of micro-injected imidacloprid and oxydemeton-methyl on red gum eucalyptus trees (Eucalyptus camaldulensis) infested with red gum lerp psyllid (Glycaspis brimblecombei)

机译：微量注射吡虫啉和甲基羟乙胺对红树胶木虱（Glycaspis brimblecombei）侵染的红树桉树（Eucalyptus camaldulensis）的功效

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摘要

A stand of red gum eucalyptus trees (Eucalyptus camaldulensis) heavily infested with red gum lerp psyllid (RGLP) (Glycaspis brimblecombei) was micro-injected at crown level with a single standard treatment of imidacloprid, oxydemeton-methyl, or a combination of both. Psyllid populations were monitored for 15 months following initial treatment. Significant mortality' and reduced population levels of immature RGLP occurred within 1 week following an application of all treatment materials. Oxydemeton-methyl was significantly effective, when compared to untreated trees, for approximately 2 months. Imidacloprid-treated trees showed statistically significant reduction of psyllid nymphs, compared to untreated trees, for approximately 8 months. The combination of both materials significantly reduced psyllid nymph populations for approximately 8 months. Many trees continued to show control up to 15 months with imidacloprid. However, nymph population variances among treatment trees were too high to statistically detect significant differences among treatment averages. The longer residual activity in some trees may indicate variability among individual trees sustaining levels of imidacloprid beyond 8 months.
机译：在树冠水平上微量注射一株标准的吡虫啉，羟甲双氧甲基或两者混合使用的方法，对一棵被红树胶木虱（RGLP）（Glycaspis brimblecombei）严重侵染的红树桉木树（Eucalyptus camaldulensis）进行显微注射。初次治疗后监测木虱种群15个月。施用所有治疗材料后1周内，死亡率显着降低，未成熟RGLP种群减少。与未经处理的树木相比，甲基羟乙酮显着有效约2个月。与未经处理的树木相比，吡虫啉处理的树木与未处理的树木相比，在统计学上显着减少了约8个月。两种材料的组合显着减少了约8个月的木虱若虫种群。吡虫啉在长达15个月的时间内仍能控制树势。但是，处理树之间的若虫种群方差太大，无法从统计学上检测出处理平均值之间的显着差异。一些树木中较长的残留活性可能表明维持吡虫啉水平超过8个月的个体树木之间存在差异。

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