sentence: Mature caterpillars chew large, ragged holes in the leaves leaving the large veins intact.
sentences_before: Full grown caterpillars are about  in length. They move sluggishly when prodded. They overwinter in green pupal cases. Adults start appearing in gardens after the last frost and are a problem through the remainder of the growing season. There are three to five overlapping generations a year.
sentences_after: Handpicking is effective for control.
concept_name: mature caterpillar
headings: Horseradish Pests and diseases
categories: Root vegetables Medicinal plants Spices Brassicaceae Condiments