朱红毛斑蛾的发生规律、潜在分布区预测及防治策略

Occurrence regularity,projections of potential distribution areas and control strategy of Phauda flammans

朱红毛斑蛾(Phauda flammans)以幼虫取食叶片危害各种榕属植物,主要为害小叶榕(Ficus microcarpa)、垂榕(Ficus benjamina)和高山榕(Ficus altissima)。调查发现,朱红毛斑蛾在厦门1 a发生3代,11月下旬化蛹越冬,翌年4月下旬为第1代幼虫期。目前在厦门市各行政区已广泛分布。朱红毛斑蛾在厦门为害高峰(幼虫暴食期)主要集中在6月初、8月上中旬、10月中下旬,2023年7月底开始,朱红毛斑蛾的发生区域明显增加。根据预测,福建、广东、广西和海南4省为朱红毛斑蛾中高适生区。根据朱红毛斑蛾生物学特性,提出监测预警、物理防治、化学防治和生物防治等防治策略。

The Phauda flammans feeds on the leaves of various Ficus plants,particularly F.macrocarpa,F.benjamina,and F.altissima.Research revealed that P.flammans has three generations per year in Xiamen,with pupation occurring in late November,and the first generation of larvae appearing in late April of the following year.It is currently widespread in all administrative areas of Xiamen,with the peak periods of damage by P.flammans in Xiamen being mainly concentrated in early June,early mid-August,and mid to late October.Since the end of July 2023,the occurrence of P.flammans increased significantly.Fujian,Guangdong,Guangxi,and Hainan provinces are projected to be moderately to highly suitable areas for P.flammans.Based on the biological characteristics of P.flammans,strategies for its prevention and control have been proposed,including monitoring and warning,and physical,chemical,and biological control.