Diversity and flight activity of aphids (Hemiptera: Aphididae) as potential vectors of carrot viruses

Abstract

Diversity and aphid flight activity in carrot crops have not been investigated in Serbia, so far. Monitoring of the flight activity of aphids, as potential vectors of carrot viruses was conducted at the locality of Opovo (South Banat) in 2017, using 12 color pan traps (6 green and 6 yellow). A total of 2108 individuals of winged aphids were collected and a total of 43 different aphid taxa were identified, including 12 species known as being vectors of carrot viruses. About 85% of collected aphid specimens were potential vectors of carrot viruses. Maximum population density of winged aphids and the highest flight activity of the potential vectors were observed in mid-June. The most numerous aphid species in pan traps were: Myzus persicae (54,7%), Therioaphis trifolii (12,8%), species of the genus Aphis (10,7%) and Acyrthosiphon pisum (9,3%). The differences in abundance of aphids and the number of recorded species in green and yellow water traps were not statistically significant, as confirmed by t-test.

Diverzitet i let biljnih vaši u usevu mrkve do sada nije istraživan u Srbiji. Praćenje leta biljnih vaši potencijalnih vektora virusa u usevu mrkve obavljeno je na lokalitetu Opovo (Južni Banat) 2017. godine, korišćenjem 12 obojenih lovnih klopki (šest zelenih i šest žutih). Prikupljeno je ukupno 2108 krilatih jedinki biljnih vaši i determinisana su 43 različita taksona. Od svih determinisanih taksona, za 12 je poznato da su vektori virusa mrkve. Oko 85% svih prikupljenih jedniki činili su potencijalni vektori virusa mrkve. Najveća brojnost biljnih vaši, ujedno i najveća aktivnost potencijalnih vektora, registrovana je sredinom juna. Najbrojnije vrste u lovnim klopkama bile su: Myzus persicae (54,7% prikupljenih jedinki), Therioaphis trifolii (12,8%), vrste roda Aphis (10,7%) i Acyrthosiphon pisum (9,3%). Brojnost biljnih vaši i sastav vrsta u zelenim i žutim lovnim klopkama se nisu statistički značajno razlikovali, što je potvrđeno t-testom.