|Our yellow squash is developing brown spots. What can we do?
|Answer from NGA
June 4, 2010
|Brown spots on the leaves indicate a fungal infection or sun scald (if the area is a tannish-brown). Brown spots on the squash themselves is a fungal or bacterial soft rot. Leaves that are sun burned can be left alone: fungus infected leaves and squash should be removed from the plant. This will open up the plant to better air circulation and also remove the fungal spores so they don't splash onto healthy leaves and infect them, too. Try to keep water off the foliage. There are garden fungicides you can use but usually once a plant is infected, the disease will run its course and kill the plant. Be sure to remove all of the plant debris from the garden at the end of the season (or when the plant dies).
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