The pine brown tail moth, Euproctis terminalis (Walker 1855), is a periodic pest in pine plantations in South Africa. The larvae feed on pine needles and can cause severe defoliation when population densities are high. Population densities fluctuate temporally and spatially, complicating the prediction of potential growth loss and tree mortality. The aim of this study was to identify the sex pheromone of the pine brown tail moth to provide stakeholders with a tool for monitoring it. Gas chromatography-electroantennogram detection and gas chromatography/mass spectrometry analyses of female pheromone gland extracts identified the major component as (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate. Traps baited with (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate caught more males than unbaited traps. A delta trap was shown to be a superior design compared to a bucket funnel trap. This pheromone can now be used for monitoring E. terminalis in pine plantations.

松棕尾蛾Euproctis terminalis (Walker 1855) 是南非松树种植园的周期性害虫。幼虫以松针为食，当种群密度高时会导致严重的落叶。人口密度随时间和空间波动，使潜在生长损失和树木死亡率的预测复杂化。本研究的目的是确定松棕尾蛾的性信息素，为利益相关者提供监测它的工具。女性信息素腺提取物的气相色谱-触角电图检测和气相色谱/质谱分析确定主要成分为 ( Z,Z,Z,Z )-7,13,16,19-docosatetraen-1-ol isobutyrate。用 ( Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate 比没有诱饵的陷阱捕获更多的雄性。与桶形漏斗式疏水阀相比，Delta 疏水阀的设计更胜一筹。这种信息素现在可用于监测松树种植园中的E. terminalis。