I intend to use some photos for my forthcoming book on agriculture, listing some common diseases and pests of cabbage as given in the link https://www.plantvillage.com/en/topic... . I enquired and received a reply from Mr. David Hughes (posted Sep 11) as follows:
"All content on PlantVillage is available under the Creative Commons Attribution-ShareAlike License; this means that you are free to share and remix everything you find here, even for commercial purposes, as long as you share the results under the same license."
However, when clicking on several of the photos, they are classified as Creative Commons Attribution Non commercial. I would need reconfirmation that these photos indeed may be used, if I intend to sell my book if they are published.