Abstract

Abstract Three sawfly species (Hoplocampa minuta, Hoplocampa flava, Hoplocampa fulviicornis) have been monitored in plum orchards during the flowering period in three consecutive years at three different locations in Hungary using chromotropic white sticky traps. Black and yellow sawflies (H. minuta and H. flava) are one of the most important pests in plum orchards, however plum-fruit sawfly (Hoplocampa fulvicornis) has not yet been documented from plum orchards in Hungary. In almost all locations and years, H. minuta was the most dominant species, except in Cegléd, 2014, where H. flava was the most abundant one. In terms of sex ratio, in all three species, more males than females were caught in the traps except in 2016 at Érd, where more H. flava females flew into the traps.

Highlights

  • Black and yellow sawflies (Hoplocampa minuta Christ, 1791 and Hoplocampa flava Linnaeus, 1761), (Hymenoptera: Tenthredinidae) are one of the most dominant pests of plum (Prunus domestica L.) (Rosaceae) in Europe, causing significant damage and yield losses in plum orchards (Caruso and Cera, 2004; Liston et al, 2019; Nagy, 1960)

  • H. minuta and H. flava are present in Hungarian plum orchards, little is known about their populations’ size, flight dynamics and distribution of the different species

  • In 2014, at Cegled first adults appeared in the traps on March 27 (Fig. 1A and B) and H. flava was the dominant species (Fig. 1C)

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Summary

Introduction

Black and yellow sawflies (Hoplocampa minuta Christ, 1791 and Hoplocampa flava Linnaeus, 1761), (Hymenoptera: Tenthredinidae) are one of the most dominant pests of plum (Prunus domestica L.) (Rosaceae) in Europe, causing significant damage and yield losses in plum orchards (Caruso and Cera, 2004; Liston et al, 2019; Nagy, 1960). The insecticide application has to coincide with the petal fall of the flowers At this time several bees and other beneficial insects are present in the orchard feeding on the residual flowers, which can be harmed by the insecticides. Only the chromotropic white sticky trap is available to monitor the flight activity of these two sawfly species in plum orchards (Blaisinger, 1975; Tamosiunas et al, 2014). H. minuta and H. flava are present in Hungarian plum orchards, little is known about their populations’ size, flight dynamics and distribution of the different species

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