Phytoplasma infection status survey in plum psyllid (Cacopsylla pruni) population

Dominika Bodnár,Brigitta Szalai,Gábor Tarcali,Orsolya Viczián,Emese Mergenthaler

doi:10.34101/actaagrar/2/3678

Dominika Bodnár, Brigitta Szalai + Show 3 more

Open Access

https://doi.org/10.34101/actaagrar/2/3678

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Abstract

European Stone Fruit Yellows (ESFY) phytoplasma disease causes an increasing amount of damage. This is especially true to the Gönci growing region. The insect vector of the disease, which has been shown to have a vector role during transmission experiments, is the plum psyllid (Cacopsylla pruni). In 2018, during the swarming period of plum psyllid, in 3 different settlements (Boldogkőváralja, Nagyvárad and Bekecs) 265 psyllidswere collected, from which 165 were plum psyllid. Molecular biology studies showed 106 individuals infected with phytoplasma, of which 20 were males and 86 were females.

Highlights

European Stone Fruit Yellows (ESFY) phytoplasma disease causes more and more problems in stone fruit orchards, especially in apricot plantations
The only known vector, of which vector role was proved by transmissional experiments, is the plum psyllid (Cacopsylla pruni)
From the collected plum psyllids 106 individuals were found to be infected with phytoplasma, identified by molecular biological studies with universal primers

Summary

Introduction

European Stone Fruit Yellows (ESFY) phytoplasma disease causes more and more problems in stone fruit orchards, especially in apricot plantations. The importance of the damage caused by the pathogen (‘Ca. Phytoplasma prunorum’) is priority in the Gönci apricot growing region since this growing region gives near the 40% of the national apricot yield. Within the Gönci growing region there are two settlements are highly important since the 80% of the apricot orchards of this growing region are inside the administrative border of Boldogkőváralja and Gönc. The only known vector, of which vector role was proved by transmissional experiments, is the plum psyllid (Cacopsylla pruni). Their feeding habit is oligophagous, related to Prunus species (Ripka, 2010). One important tool of these is the protecting against the vector

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