Home › Authors › G. A. de Weille 👤 G. A. de Weille 3 books Books by G. A. de Weille Planeet in nood Planeet in nood 1980 An approach to the possibiliti An approach to the possibilities of forecasting downy mildew infection in onion crops 1975 Forecasting crop infection by Forecasting crop infection by the potato blight fungus 1964