Be aware that early signs of soybean rust infection can easily be confused with bacterial pustules, bacterial blight and ...
A scientist helps save Crater Lake’s whitebark pine trees from an invasive fungus. In 2002, “Oregon Field Guide” told the story of how an invasive fungus called blister rust was killing Crater Lake's ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This photograph, donated in 1922 by ...
Master Gardener: Tips to prevent rust disease in trees; why you should steer clear of Bradford pears
Last year my Bradford pear’s leaves were covered with rust fungus. What can I do this year to prevent that from happening again? CS You are correct. It seems like rust disease was everywhere last ...
Some of us are starting to notice yellow-orange spots on the leaves of their ornamental or fruiting pear trees. These spots begin in the late spring on the upper surface of leaves, approximately 1/8 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results