[Cabbage leaf eating caterpillar in North France]

autographa gamma brassica oleracea caza con trampa damage dynamique des populations feromonas sexuales hortalizas (plantas) insecte phyllophage insectos depredadores de las hojas larvae larvas larve leaf eating insects mamestra brassicae nord pas de calais pieris rapae plutella xylostella population dynamics sex pheromones trapping vegetable crops