Boston ivy has black spot. How to get rid of?

The Boston ivy in our backyard has what I think is black spot. Many of the leaves have brown patches on them where the leaf has died. Last year this wasn't a problem but last winter I didn't clean up all the dead leaves as well as I did the year before. What is the best fungicide or treatment for this problem?

Boston ivy has black spot. How to get rid of?
"The fungus Guignardia bidwellii f. sp. parthenocissi causes distinct angular, tan, spots to form on Boston ivy leaves in the spring and summer. A dark brown halo or margin along the edge of the spot is usually present. Within the tan areas, small black dots (fungal fruiting structures where new spores develop) can be observed soon after the spot reaches full size. Branch dieback occurs if the disease is very severe. A close relative of this fungus attacks grapes and causes the disease called black rot during which a leaf spot and berry rot occurs.



The fungus overwinters on the plants. In the spring and summer when moisture has been on the leaves for an hour or longer, infection occurs. Symptoms appear in within a week of infection and new spores begin to form about one week after that. The new spores can cause more spots to form during that same growing season of wet weather persists.



When watering Boston ivy, irrigate in a manner that keeps leaf surfaces dry. If there has been a leaf wetting period of several hours, apply a fungicide (Protect T/O, Clearys 3336, Domain FL) within 48 hours."



Protect T/O is the least toxic, effective synthetic fungicide for leaf spot control on Boston Ivy. For organic growers, liquid copper formulations, or copper-sulfur compounds such as Bordeaux mix, can be used for prevention.



Baking soda is a fine home remedy that has shown it's effective on powdery mildews. There is no reported evidence that baking soda is effective in preventing leaf spot on ivy. You are on your own with this remedy. Some soaps can be phytotoxic to plants. Always test any soapy water spray on a couple of leaves before general use.
Reply:I hide the black spots with green paint.
Reply:remove the leaves if possilble that are infected and spray with baking soda and soapy water, this is also good for powdery mildew.