Downy mildew of peas caused by peronosporo pisi (Deb) syd.
Campell, L.
Downy mildew of peas caused by peronosporo pisi (Deb) syd. - Washington 1935 - 1-42 p. - Washington Agricultural Exper .
Downy mildew of peas caused by peronosporo pisi (Deb) syd. - Washington 1935 - 1-42 p. - Washington Agricultural Exper .