Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

New record of Quadrastichus plaquoi (Hymenoptera: Eulophidae) as parasitoid of Chromatomyia horticola (Diptera: Agromyzidae).

Abstract

Chromatomyia horticola (Goureau) is an important pest of many economically important crops throughout the world. The study deals with Quadrastichus plaquoi Reina and LaSalle (Hymenoptera: Eulophidae) as a new parasitoid of C. horticola. This species differs from Q. liriomyzae, its closely related species; in characters that both sexes of Q. plaquoi have pronotum mainly yellow with a median dark area, first two funicular segments of female antenna are equal in length and scape reaching slightly beyond the apex of vertex. The parasitoid was distributed in all the agriclimatic conditions ranging from subtropical low hills to dry temperate high mountains resulting in 0.14-13.63% parasitization of C. horticola. Parasitoid was more abundant in sub-temperate mid hills than sub-tropical or temperate conditions. Indian mustard was observed to be more attractive than garden peas to the parasitoid. Being a native and potential parasitoid, in future, it can be used for bio-intensive management of C. horticola.