Black Leaf Edges on Mandevilla - Knowledgebase Question

haverhill, ma
Avatar for nanaboo222
Question by nanaboo222
July 2, 2006
I have a mandevilla plant that the lower leaves just started turning black along the edges. Is this fungi? If so what particular fungicide should I use?

Answer from NGA
July 2, 2006
Fungal diseases usually occur during the warm and wet months of the summer. The diseases can spread rapidly when leaves are left wet overnight. Use an approved fungicide, such as Zyban as soon as spots are present. These diseases can spread to other plants quickly. Leaves will turn yellow with spots and fall off the plant after a few days. Removal of infected leaves and spraying with a fungicide and careful watering will stop the disease from spreading to other plants or to other leaves on the same plant.

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