Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

A biological method of controlling the potato moth.

Abstract

In an experiment, potatoes infested with larvae of the potato moth [Phthorimaea operculella] were sprayed with aqueous suspensions of the entomopathogenic nematodes Steinernema feltiae, S. bibionis, S. carpocapsae or Heterorhabditis heliothidis at a rate of 20 000 infective larvae per receptacle (a crystallizing basin). The first 3 species resulted in 95.5, 93.4 and 93.1% mortality, resp. Larvae of all instars, and within as well as on the surface of the potatoes, were affected, and infective larvae of the next generation appeared in 6 days.