European corn borer
mainly on the underside of leaves. The larvae initially feed on the leaves and then bore into the upper part of the maize plants. Later, second generation [...] Ostrinia nubilali s), is a severe pest of maize and has also been reported to attack apple, strawberries, peppers and other plants. It is present in Europe [...] Later, frass and holes are easily visible on stems, or on the apical part of maize ears. Larval tunnelling weakens the stalks and causes them to break during