Q.What fungicide or other product made by BAYER can help to control Pocket Plum or Brown Rot on my Damson and Plums Trees.
The new fruits are mal formed like mummified,I was told to spray with fungicide,but I don’t know which one??

Certified GKH Gardening Expert
Sorry to hear about your plum trees. We don't make brand recommendations, but use a fungicide like lime sulfur, chlorothalonil, captan, thiophanate methyl or myclobutanil.
Here are a couple articles that may be helpful:
https://www.gardeningknowhow.com/edible/fruits/plum/treating-brown-rot-in-plums.htm
https://www.gardeningknowhow.com/edible/fruits/plum/plum-tree-diseases.htm