Sensitivity of <i>Pseudoperonospora humuli</i> (the Causal Agent of Hop Downy Mildew) from Oregon, Idaho, and Washington to Fosetyl-AL (Aliette)

Fig. 1. Secondary hop downy mildew spikes arising from infection of basal stems. Secondary spikes harbor the pathogen throughout the growing season.



Image from Plant Health Progress article:
Sensitivity of Pseudoperonospora humuli (the Causal Agent of Hop Downy Mildew) from Oregon, Idaho, and Washington to Fosetyl-AL (Aliette)