Question
My plant is stated producing the squash; however, after an inch and a half in size, it started browning and later dried out. There's plenty and all of it fell to the same fate. I was waiting for at least one to continue growing. I have it planted on a raised bed. I don't know what's wrong & this is the first time I planted a Long squash. I'll appreciate your expertise on this. Thank you.

Answer
Dear Dante:

I suspect either downy or powdery mildew may be the problem with your squash.

Downy mildew: This disease attacks most of the plants among the cucurbits. It is caused by the fungus Pseudoperonospora cubensis. If temperatures are cooler and conditions are moist in your region, your squash plants may be at risk. Early signs are yellowing spots on the leaves that may turn brown and fuzzy with time. As the disease progresses, the patches will turn black.
Solution: Give your squash plenty of room to breathe so that air can circulate. Use a compost tea if you expect long periods of cold, wet weather.

Powdery Mildew: Look for a white mold on the leaves of your squash plants. This disease is caused by several different kinds of fungi and will eventually kill the foliage and can affect squash fruit. Powdery mildew occurs in warm rather than cold conditions and high moisture levels will make the problem worse. Solution: Use a fungicide such as Daconil 2787 available from your gardening supply store.  

Sincerely,

Mack Jean
AllExperts
Master Gardener
Tennessee