Impatiens Downy Mildew could be killing your plants

This warmer weather means more and more people are buying plants to beautify their gardens, but there is a deadly mildew killing one in particular that you need to worry about, the impatiens.

This is a big deal because some say impatiens are the number one bedding plant in the United States.

The fungus is known as the Impatiens Downy Mildew.

One greenhouse owner says it came into the picture about three or four years ago from Florida and worked is way up the last couple of years.

It is a fungus that is a soil born problem.

It attacks the plant and within 48 hours the plant will die.

The leaves fall off, the flowers fall off then the plant actually collapses on itself.

If you currently have those plants or are planning on buying them, look at the bottom of the leaf. If it is affected by the fungus you should be able to see white little spores.

The fungus is said to last about three to four years in the soil but if we get cold winters again that will kill the spores.

“You want to rotate your plants like farmers rotate corn and soy beans. It’s a good idea to rotate impatiens with other plants that like shade like Begonias or Coleus or New Guinea Impatiens which are not affected by Impatiens Downy Mildew”, says Vite Greenhouses Co-Owner, Jerome Vite.

You also want to be careful if you have hanging baskets. When soil and rain kicks up, the mildew could end up there.

Vite says you also want to make sure you buy your plants from a reputable retailer. He says that they treat for the fungus so all of their plants are safe.


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