Three species of Nectria fungi are associated with beech bark disease in North America. Nectria... Three species of Nectria fungi are associated with beech bark disease in North America. Nectria... Reference : Morris A.B. R.L. Small and M.B. Cruzan. 2002. Investigating the relationship between... Reference : Morris, A.B., R.L. Small, and M.B. Cruzan. 2002. Investigating the relationship between... Figure 7. Large areas of bark reddened by nectria fruiting bodies. Figure 7. Large areas of bark reddened by nectria fruiting bodies. Figure 10. Beech snap occurs when wind breaks of trees where wood borers and decay fungi weaken the... Figure 10. Beech snap occurs when wind breaks of trees where wood borers and decay fungi weaken the... Sudden Oak Death - poses a real threat to Michigan's forest resources. We are currently conducting... Sudden Oak Death - poses a real threat to Michigan's forest resources. We are currently conducting... Figure 11. The beech tree with the ribbon is free of beech scale and Nectria; the tree on the... Figure 11. The beech tree with the ribbon is free of beech scale and Nectria; the tree on the... All three Nectria species can also form spores by an asexual process. Small white or pink cushions... All three Nectria species can also form spores by an asexual process. Small, white or pink cushions... Symptoms of Nectria infection: Tarry spots are often an early symptom of trees infected by Nectria.... Symptoms of Nectria infection: Tarry spots are often an early symptom of trees infected by Nectria.... Figure 9. The craterlike scars indicate where small isolated nectria cankers were walled off by... Figure 9. The craterlike scars indicate where small, isolated nectria cankers were walled off by...
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