31. The Irish potato famine was caused by a plant disease that raced through crops containing no genetic resistance. 32. "This isn't a plant disease . 33. The contagious plant disease causes unsightly lesions that make the fruit drop prematurely, but is not harmful to humans. 34. Invariably he was wearing a kelly-green T-shirt on which was printed, in bold white letters, " plant disease ." 35. It can cause a plant disease , the leaf blight of " Amorphophallus rivieri ", a food crop of Japan. 36. As is likely the case for any plant disease , host resistance is the most practical and desired control method. 37. A lot of the same factors that were prevalent in plant disease were there in human disease as well. 38. Silver scurf is a plant disease of potato, which is caused by the conidia and conidiophores of the pathogenic fungus. 39. First, understanding the survival of plant disease -causing bacteria and fungi is vital for developing new ways to control their spread. 40. Others took up growing roses after a plant disease destroyed most of the area's fruit trees in the early 1900s.
