---
title: What Does Pythium Blight Look Like? [Disease Identification]
description: Pythium blight is a destructive lawn disease that can do damage in just a couple days.. The best way to fight Pythium is to prevent it.
---

[Green Meadow Lawncare Learning Center](https://blog.greenmeadowlawncare.com)

# [What Does Pythium Blight Look Like? \[Disease Identification\]](https://blog.greenmeadowlawncare.com/what-does-pythium-blight-look-like)

 Written by [Nate Bahler](https://blog.greenmeadowlawncare.com/author/nate-bahler) | Aug 3, 2020 5:34:49 PM

*Pythium blight is a very destructive fungal lawn disease that does the worst of its damage in hot and humid weather.*

*It can be spread by moving water and mechanical equipment. This disease can do significant damage in as little as a few days under the right conditions. *

*This disease, like many others, is easier to prevent than it is to cure.  The best preventative for this disease is maintaining a healthy lawn that can stand up to disease. *

## **When Does Pythium Blight Occur?**

### Pythium blight disease can occur when we have 3 factors present; a pathogen already living dormant in your lawn, the proper host (rye grass or blue grass), and/or day & night temperatures are reaching a combined 150 degrees. Example: 90 during day, 60 at night for 3 consecutive days.

## **How To Prevent Pythium Blight:**

We want to create an environment that does not foster the growth of this disease. While there are some environmental factors that we cannot control, there are a number of practices that we *can* control. Here are a few tips:

- ### Change your lawn grade or create drainage areas to minimize spots on your property where water might pool. 
- ### Clean your mower blades. Lawn mowers can contribute to the spread of this disease. 
- ### Water infrequently & deeply
- ### Avoid watering your lawn at night 

## **What are Signs of Pythium Blight?**

- ### Cotton- like mycelium growing in morning (see below). 
- ### Redish/brown spots or streaks.
- ### Streaks that follow water drainage patters or lawn mowing patterns. 

**If this article was useful to you, read some others similar to it:**

- [Most Common Lawn Disease in CT](https://blog.greenmeadowlawncare.com/lawn-diseases-in-connecticut)
- [Pink Snow Mold vs Gray Snow Mold](https://blog.greenmeadowlawncare.com/pink-snow-mold-vs-gray-snow-mold)
- [Prevent Pythium Disease \[8 Ways to Avoid its Spread\]](https://blog.greenmeadowlawncare.com/prevent-pythium-disease-8-ways-to-avoid-using-a-fungicide)
- [Phosphite vs Phosphite \[Treating Pythium Blight\]](https://blog.greenmeadowlawncare.com/phosphite-vs-phosphate-treating-pythium-blight)
- [The Disease Triangle \[Prevent Lawn Disease\]](https://blog.greenmeadowlawncare.com/the-disease-triangle-how-to-prevent-lawn-disease)

*Since 2007, Green Meadow Lawn Car**e has prov**ided homeowners throughout the greater Tolland, Connecticut area with premium fertilization programs, tick control, mosquito management, seeding & aeration and tree & shrub care. *

*Visit our *[*Learning Center*](https://blog.greenmeadowlawncare.com/)* to find out more about how our services can help you or visit our*[ *Youtube Channel*](https://www.youtube.com/channel/UCZzJAZmz2qVfbPc1fQOf5Ig) *to view more**in our Learning Center Series.*

*To speak to our Customer Service Manager, please call* *Dave (view*[ *Dave's video bio*](https://www.youtube.com/watch?v=WP_5B_B-jbQ) *here) with any questions. Dave has been in the industry for 30 years and is always happy to help with his expert advice.  *

**860-870-5700**

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