Oomycetes are also called “water molds,” which makes sense because they usually show up during extensive wet periods and travel in water. Oomycetes are now included in the kingdom Protista. However, after years of research and studies, it has been determined that these organisms are actually more closely related to algae and green plants. Oomycetes (organisms of the phylum Oomycota) used to be classified as a part of the Kingdom fungi due to their filamentous growth pattern and the fact that they feed on decaying matter. This pathogen attacks tomatoes, potatoes, and other nightshade crops. Tomato blight (also called late blight because it occurs later in the season than “ early blight”) is caused by the oomycete Phytophthora infestans, which have fungus-like qualities. What is Tomato Late Blight? Tomato blight is caused by Phytophthora infestans, a fungal-like disease that occurs later in the season. Here you’ll learn how to quickly diagnose, treat, and prevent tomato late blight. Understanding late blight and how it spreads is key because it can devastate your tomato and potato crop very quickly if proper care is not taken. Is it a bacteria, a disease, or virus?Īs with anything in gardening, it is important to understand what is happening and why so you can better understand how to treat and prevent it in the future. Does it live in the soil? Can you get it from your neighbor’s garden? Some say it moves up the coast during rainy periods and can travel miles in the wind. We’ve all heard about “the blight,” and some confusing and conflicting information exists. How to Properly Dispose of Infected Plants.
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