The influence of the application of organic matters to sweet potato field on the occurrence of scarabaeid larvae

abonos agentes nocivos agricultural chemicals amendement du sol animal animal developmental stages animal nuisible animales animales nocivos animals arthropode arthropods coleoptera convolvulaceae crops cultivos developmental stages dicotiledoneas dicotyledons economic plants engrais engrais organique enmiendas del suelo etapas de desarrollo etapas del desarrollo animal facteur nuisible fertilizers hortalizas (plantas) industrial crops injurious factors insecte insecte nuisible insecte radicivore insectos insects invertebrados invertebrates ipomoea ipomoea batatas larvae larvas larve noxious animals organisme nuisible pest insects pests plagas plantas plantas azucareras plantas feculentas plantas industriales plante plante de culture plante industrielle plante racine plants produit agrochimique root crops root vegetables soil amendments starch crops sugar crops tubiflorae vegetable crops