nest of young caterpillars of yponomeuta or formerly hyponomeuta malinellus the apple ermine on an apple leaf in early spring

green insect leaf invertebrate animal flower nature plant arthropod moth produce grass wildlife butterfly tree nest young caterpillars yponomeuta formerly hyponomeuta malinellus apple ermine early spring europa europe malinella beautiful summer yellow color forest wild growth nature green group eat butterfly macro animal wildlife worm metamorphosis colony ermine pest moth plant insect larvae caterpillar hyponomeuta yponomeuta malinellus parasite yponomeutidae larva branch hackberry cocoon agricultural bird cherry prunus padus disease prunus damage agriculture tree leaf closeup garden