Tent Caterpillar, Eastern (Malacosoma americanum (Fabricius)
Eastern Tent Caterpillar is responsible for forming unsightly silk-webbed nests at branch forks. Their population peaks every 8 to 10 years, when large infestations can completely defoliate trees in late spring/early summer. Eastern tent caterpillar's primary host plants are wild cherry (Prunus pensylvanica), apple (Malus) and crabapple (Malus). Occasionally, they feed on deciduous forest and ornamental trees such as ash (Fraxinus), birch (Betula), blackgum (Nyssa sylvatica), willow (Salix), witchhazel (Hamamelis), maple (Acer), oak (Quercus), poplar (Populus), cherry (Prunus), peach (Prunus), and plum (Prunus).