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【目的】调查松阴吉丁Phaenops yin Kubáň&Bíly(鞘翅目:几丁甲科)对北京地区油松Pinus tabuliformis Carrière的危害情况,了解该害虫的生物学特性;分析其偶然性暴发成灾的原因及规律,探讨该害虫的综合治理措施。【方法】本研究通过林间采集、解剖受害木段以及实验室罩笼饲养等方法,调查了松阴吉丁的发生现状,包括油松的受害情况和受害症状、天敌生物等,并结合历史文献和北京地区近20年的气象资料分析了该虫偶然暴发的原因。【结果】松树死亡率约为30%,受害株率约为60%,发现两种主要寄生性天敌始刻柄茧蜂Atanycolus initiator(Fabricius)和赤腹深沟茧蜂Iphiaulax impostor(Scopoli)。【结论】该虫在我国北方地区偶然性暴发的主要原因可能与持续高温干旱和降雨量减少导致的油松长势衰弱有关。建议结合气象变化及时预测预报松阴吉丁的发生,通过补水降温、清理枯枝、保护天敌、合理用药等综合治理措施调控该害虫的种群动态。
【Objective】 The purpose of this study was to investigate the damage of Phaenops yin Kubáň & Bíly (Coleoptera: Chinenididae) to Pinus tabuliformis Carrière in Beijing, understand the biological characteristics of the pest, analyze the causes and rules of its accidental outbreak The pest’s comprehensive management measures. 【Method】 The present study investigated the occurrence status of Pinus yintii, including the damage and symptoms of Pinus tabulaeformis and its natural enemies, by means of forest collection, anatomical damage wood block and laboratory cage cage. Literature and Beijing meteorological data for nearly 20 years analyzed the accidental outbreak of the worm. 【Result】 The mortality of pine trees was about 30% and the damage rate was about 60%. Two main parasitic natural enemies, Atanycolus initiator (Fabricius) and Iphiaulax impostor (Scopoli), were found. 【Conclusion】 The main reason for the accidental outbreak of the pest in northern China may be related to the weakening of the Pinus tabulaeformis caused by the continuous high temperature and drought and the decrease of rainfall. It is suggested that timely forecasting and forecasting of the occurrence of Songyinjiding should be carried out in combination with the meteorological changes, and the population dynamics of the pest should be regulated through comprehensive measures such as water replenishment and cooling, the removal of dead branches, the protection of natural enemies and rational drug use.