Yazar
William Boright Hewitt
4 cilt bulundu.
Cilt sonuçları
Pierce's disease of grapevines
William Boright Hewitt · University of California, College of Agriculture, Agricultural Experiment Station
32 sayfa · 1942
Grapes / Diseases and pests
Rots and bunch rots of grapes
William Boright Hewitt · California Agricultural Experiment Station
52 sayfa · 1974
Grapes / Diseases and pests
Plant health and quarantine in international transfer of genetic resources
William Boright Hewitt, Luigi Chiarappa · CRC Press
346 sayfa · 1977
Agricultural pests / Plant quarantine / Plant Germplasm resources / Plant diseases / Seed pathology