Some gardeners have also had luck with pure neem oil. Rose bushes' susceptibility to black spot fungus is also one of the ...
Black spot is a serious fungal disease in which ... being able to germinate on the leaves. You can also use neem oil, which coats roses in a protective film. This makes it difficult for ...
Beyond the romance they bring, roses offer environmental benefits by encouraging pollination and providing bird and insect ...
and miniature roses are more vulnerable to infection. Fungicides can easily treat black spot disease. Neem oil can also be used to control the spread of the disease.
Although the Bonide Captain Jack's Neem Oil is formulated for killing many attackers, it works best on controlling powdery mildew. Black spot is listed in the “PROTECTS AGAINST DISEASE'' and roses are ...