Watering the soil and not the plant itself helps immensely. Otherwise, make sure your tomatoes have good drainage. Planting in raised beds goes a long way to prevent blight. If you had any blight last year, don’t plant in the same area this year or use the same soil in your raised bed or container. Completely douse the plant with Copper and continue to use every week and particularly after heavy rains. The treatment is organic, Copper Fungicide. Remove all affected leaves on the plant and dispose of them away from the garden. The fungus Alternaria solani loves damp and wet weather in order to grow. Wet weather is usually the culprit for Early Blight. Lower leaves will often turn yellow and drop off. Leaves will develop brown spots on lower leaves and stems. All three are fungal diseases and treatment for all three is the same. There are 3 kinds of Tomato Blight: Early Blight, Late Blight, and Septoria, which is also considered a blight. My mission here is to give you a quick overview and a solution for you, the home gardener. It’s a little difficult to sort through and find the information pertinent to your patio tomato or a few tomato plants in a raised bed. Use clean pruning shears sterilized with alcohol after each cut to avoid contaminating health plants.Īfter that, treat with Bordeaux mixture and repeat this surveillance on a regular basis until about 2 weeks before harvesting the tomatoes.Īnother solution is to treat with baking soda soap spray: 1 table spoon baking soda and 1 table spoon liquid beldi soap for 1 quart (1 liter) water.When you look up Tomato Blight on the internet, what you’ll usually run into are long University papers and articles relating to crops. Observing your plants very regularly is the best manner to keep downy mildew from spreading.Īs soon as black or brown spots appear on the leaves, remove and destroy them to eliminate any trace of the fungus. Treating tomato blight and downy mildewĪs of today, there is no curative treatment against downy mildew. Plants touching the ground will potentially be infected with mildew. Soil propagates diseases and fungus such as downy mildew very well. Lastly, do all you can to avoid having leaves or fruits touching the soil. When watering, never wet the leaves: only bring water to the foot of the plant. Downy mildew spreads along wet leaves, so the longer they stay wet, the higher the risk of becoming contaminated by the tomato blight. Tightly packed tomato plants lead to a closed, stuffy environment that is exactly what downy mildew needs to grow. If air circulates well, you will guarantee quicker drying of leaves. Most important to avoid tomato blight is to space tomato plants well apart. If not treated, the disease can spread to an entire crop in just days and destroy the harvest. Once contaminated, tomato plant leaves start to blacken. Tomato blight is a fungus with latin name Phytophthora infestans that results in a devastating fungal disease related to downy mildew.Īs for all mushrooms, two factors meet to provide the most favorable conditions to its growth: heat and moisture. Another tomato pathogen – tomato leaf spot.Here is how to avoid this blight and treat this disease with organic techniques. Tomato late blight is one of the most devastating diseases because downy mildew spreads extremely quickly.Īs soon as black spots appear on leaves, you should prepare for this worst of tomato blight, the late tomato blight
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