E-GRO Alert: Powdery mildew on calibrachoa

May 14, 2015
Written by Nora Catlin, Cornell University
May 14, 2015 – Powdery mildew can often go unnoticed on calibrachoa. Check your plants for white, powdery, fungal growth – usually on the lower foliage and sometimes accompanied with leaf discoloration and leaf drop.

There are a few reasons powdery mildew often is overlooked in calibrachoa crops: symptoms typically first develop on the lower leaves and can be easily missed if plants are not carefully inspected, the powdery fungal growth can be subtle and difficult to see in some cases, many cultivars are not affected by the disease, and symptoms can go unnoticed in baskets until they are taken down for sale.

Click here for the complete e-GRO Alert posting.

For more information on e-GRO Alert and its archives, go to www.e-gro.org.

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