Ulmus crassifolia

Genus-level evidence

9 claims where the source named the organism only at the genus or collective level (e.g. Ulmus sp.) and did not determine the species. Listed separately because they apply to the genus, not specifically to Ulmus crassifolia.

• herbivory · Eriosoma lanigerum → Ulmus spp. · effect: harmful

  “wingless females begin parthenogenetically reproducing at a rapid rate on elm trees”

  Pedigo L.P., Rice M.E. (2009) · Entomology and Pest Management, Fourth Edition · p. 443 #6493449
• pathogen pressure · Scolytus multistriatus → Ulmus spp. · effect: harmful

  “principally important in spreading the fungus Ceratocystis ulmi”

  Pedigo L.P. (2002) · Entomology and Pest Management, Fourth Edition · p. 120 #6492561
• pathogen pressure · Hylurgopinus rufipes → Ulmus spp. · effect: harmful

  “principally important in spreading the fungus Ceratocystis ulmi”

  Pedigo L.P. (2002) · Entomology and Pest Management, Fourth Edition · p. 120 #6492562
• pathogen pressure · Ophiostoma ulmi → Ulmus spp. · effect: harmful

  “Dutch elm disease, which is caused by a fungus, would not possibly occur without elm bark beetles”

  Unknown (Unknown) · History of Plant Pathology and Early Significant Plant Diseases (Chapter 1 Introduction) #6493163
• pathogen pressure · Ophiostoma ulmi → Ulmus spp. · effect: harmful

  “introduction into the United States of the fungi causing Dutch elm disease”

  Unknown (Unknown) · History of Plant Pathology and Early Significant Plant Diseases (Chapter 1 Introduction) · p. 100 #6493292
• pathogen pressure · Ophiostoma ulmi → Ulmus spp. · effect: harmful

  “ceratoulmin, produced by Ophiostoma ulmi in Dutch elm disease”

  Unknown (Unknown) · History of Plant Pathology and Early Significant Plant Diseases (Chapter 1 Introduction) · p. 193 #6493729
• pathogen pressure · Ophiostoma novo-ulmi → Ulmus spp. · effect: harmful

  “susceptibility of elm to Dutch elm disease caused by the fungus Ophiostoma novo-ulni”

  Unknown (Unknown) · History of Plant Pathology and Early Significant Plant Diseases (Chapter 1 Introduction) · p. 211 #6493774
• pathogen pressure · Ophiostoma novo-ulmi → Ulmus spp. · effect: harmful

  “Ophiostoma, O. novo-ulmi, causing the Dutch elm disease”

  Unknown (Unknown) · History of Plant Pathology and Early Significant Plant Diseases (Chapter 1 Introduction) · p. 395 #6494240
• pest pressure · Ulmus spp. → Malus domestica · effect: harmful

  “Eggs overwinter on elm bark... winged individuals develop in early summer and disperse to apple”

  Pedigo L.P., Rice M.E. (2009) · Entomology and Pest Management, Fourth Edition · p. 443 #6493445