TY  - BOOK
AU  - Weille,G.A.de
ED  - Koninklijk Nederlands Meteorologisch Instituut.
TI  - An approach to the possibilities of forecasting downy mildew infection in onion crops
T2  - Mededelingen en verhandelingen ; no. 97
PY  - 1975///
CY  - Gravenhage
PB  - Staatsdrukkerij
KW  - Onions
KW  - Diseases and pests
KW  - Downy mildew diseases
ER  -