Stigmella ulmiphaga (Preissecker, 1942) mine Mines cannot be distinguished from those of St. ulmivora (van Nieukerken ao, 2004a), although Hering believed that the narrow, continuous frass line that more or less is characteristic of ulmivora, is interrupted in its middle part in ulmiphaga by a series of coils. host plants Ulmaceae, monophagous Ulmus glabra. phenology […]
wych elm synonym: Ulmus elliptica, montana, scabra organ parasitic mode stage note taxonomic group parasite unknown scale Diaspididae Lepidosaphes granati leaf leaf spot Pleosporales Mycocentrospora acerina leaf leaf spot Dothideomycetes Asteromella ulmi leaf vagrant Miridae Orthotylus viridinervis leaf vagrant Miridae Psallodema fieberi leaf vagrant Miridae Mermitelocerus schmidtii leaf hidden Gelechiidae Carpatolechia fugacella leaf vagrant Limacodidae […]
organ parasitic mode stage note taxonomic group parasite stem scale Coccidae Ceroplastes japonicus stem scale Diaspididae Diaspidiotus armenicus scale Diaspididae Melanaspis inopinata stem scale Coccidae Parthenolecanium rufulum stem scale Diaspididae Diaspidiotus perniciosus leaf vagrant Tingidae Monosteira unicostata stem scale Diaspididae Pseudaulacaspis pentagona unknown scale Diaspididae Diaspidiotus marani stem scale Diaspididae Diaspidiotus zonatus unknown scale Diaspididae […]
Ulmus elm (For a dichotomous table for galls on Ulmus by Hans Roskam click here) Dichotomous table for leafminers 1a corridor mine => 2 1b blotch mine => 8 1c tentiform mine => 13 1d fleck mine => 16 1e mine ends in an oval excision => 18 1c galls, etc => Tables for all […]
