Trioza apicalis Foerster, 1848

on Apiaceae

Trioza apicalis: galls on Pimpinella major

Pimpinella major, Belgium, prov. Hanaut, Chimay, Forge-Jean-Petit © Sébastien Carbonelle

Trioza apicalis: larva

larva

gall

larvae at the underside of the leaf, causing it to bulge upwards and get disfigured. Larvae dorsoventrally flattened, surrounded by a nimbus of radiating white wax threads.

Leaf curls even occurred in young leaves, that never have been in contact with the psyllids. This demonstrates that the effect of the insects on the plants is systemic. Univoltine, hibernation as adults on conifers.

hostplants

Apiaceae, oligophagous

Aethusa; Angelica sylvestris; Anthriscus sylvestris; Carum carvi; Chaerophyllum temulum; Coriandrum sativum; Daucus carota; Pastinaca sativa; Petroselinum crispum; Peucedanum ostruthium; Pimpinella anisum, major.

Daucus carota is the main host plant (Láska, 2011a).

larva

See Burckhardt & Freuler.

references

Buhr (1964a, 1965a), Burckhardt (1983a, 2002a), Burckhardt & Freuler (2000a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Láska (2011a), Malenkovský & Lauterer (2012a), Ossiannilsson (1992a), Redfern & Shirley (2011a), Roskam (2009a), Seljak (2006a), Tomasi (2014a), White & Hodkinson (1982a).

mod 2.x.2017