![]() Tomatoes grown under glass will be less likely to succumb as the blight spores do not easily get inside greenhouses.Once the fungus takes hold it rapidly spreads rapidly by wind-borne spores.Potato blight and tomato blight are both caused by the same fungal disease.Potatoes, tomatoes and other members of the Solanaceae family.I’ll keep using this spray over the rest of the season and report back on long-term results. They are flowering and starting to produce fruit. There were a few more leaves to remove, but overall, the plants looked quite healthy and green. The spray seemed to stop the blight from spreading as quickly. Here are the plants a few days after one treatment: Tomato plants after applying a DIY treatment for blight. I think they were probably weighed down a bit by the residue left behind from the spray. The day after the treatment, the plants looked droopy. Then I coated the plants in the spray, until dripping wet. Repeat weekly, or after a heavy rain.īefore I applied the tomato blight treatment, I first pruned away all diseased leaves. Apply generously to affect plants, avoiding flowers. Alternatively, you can halve the recipe and mix directly in a large spray bottle. How to make and use this homemade tomato blight spray:ġ TB baking soda 1 tsp vegetable oil A few drops of a mild dish soap 1 gallon of waterĪdd everything to a large mixing bowl and stir until baking soda dissolves. There are many commercial fungicide products out there, but the USDA actually recommends this homemade spray: However, I came across the following recipe from the USDA to make a homemade spray for infected plants, so I decided to give it a try! DIY Tomato Blight Treatment You can also try a commercial fungicide, but I have yet to find one that actually seems to work. Do not compost infected plants, but rather, burn them to get rid of the spores. But that doesn’t mean that you should give up!Īs soon as you notice signs of blight, take action to prevent further spread. Unfortunately, tomato blight is difficult to treat once it’s taken hold in your garden. Keep reading for a homemade tomato blight treatment that is actually quite helpful. Apply fungicide. If there are already signs of blight on your plants, you may want to try a fungicide. ![]() Potatoes are also affected by blight and it can spread from potatoes to your tomato plants.
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