Standardization of rearing techniques and biology of predatory mite, Amblyseius largoenis (Muma) on red palm mite, Raoiella indica Hirst and protocol for its field release

Abstract

The Red Palm Mite (RPM), Raoiella indica Hirst (Acari; Tenuipalpidae) has emerged as a serious pest of palms, especially coconut in Trinidad and Tobago, West Indies. Out of the natural enemy fauna recorded, the predatory mite, Amblyseius largoenis (Muma) was found as a potential and most widely occurring predator of red palm mite. Studies were conducted to standardize its rearing technique. Among three types of techniques tested, culturing on the potted coconut seedlings and container method were found to be better option for the mass culturing of A. largoenis over arena method. Besides that the population growth parameters of both prey (RPM) and predator were also studied and discussed along with feeding potential of A. largoenis. Further, this study will acts as a base line for integrated management practices of R. indica as well as for establishment of laboratory for mass culturing of mites.