The Economically Important Diseases of Asparagus in the U.S.

Fig. 8. Field of ‘Delmonte 361’ asparagus. Field on the left is 2 years old and was not harvested and aecial lesions developed; field on the right is 3 years old and was harvested preventing the aecial stage from developing (courtesy of D. Johnson).



Image from Plant Health Progress article:
The Economically Important Diseases of Asparagus in the U.S.