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 hyponomeuta malinellus apple ermine early spring europa europe malinella beautiful summer yellow color forest wild growth group eat macro worm metamorphosis colony pest larvae caterpillar parasite yponomeutidae larva branch hackberry cocoon agricultural bird cherry prunus padus disease damage agriculture closeup garden