Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Lettuce downy mildew cause by Bremia lactucae. March 1995
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Lettuce downy mildew cause by Bremia lactucae. March 1995
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Lettuce downy mildew cause by Bremia lactucae. March 1995
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Angular chlorotic lesions caused by lettuce downy mildew. February 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Angular chlorotic lesions caused by lettuce downy mildew. February 1996
Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Downy mildew sporulation on the underside of a butterhead lettuce leaf. February 1998
Bruce Watt, University of Maine, Bugwood.org
Sporangiophores emerging from leaf tissue.
Bruce Watt, University of Maine, Bugwood.org
infected leaf
Lettuce downy mildew cause by Bremia lactucae. March 1995
Lettuce downy mildew cause by Bremia lactucae. March 1995
Lettuce downy mildew cause by Bremia lactucae. March 1995
Angular chlorotic lesions caused by lettuce downy mildew. February 1996
Angular chlorotic lesions caused by lettuce downy mildew. February 1996
Downy mildew sporulation on the underside of a butterhead lettuce leaf. February 1998
Sporangiophores emerging from leaf tissue.
infected leaf