How do you treat Alternaria on tomatoes?
Tomatoes that have early blight require immediate attention before the disease takes over the plants. Thoroughly spray the plant (bottoms of leaves also) with Bonide Liquid Copper Fungicide concentrate or Bonide Tomato & Vegetable. Both of these treatments are organic.
How do you treat Alternaria blight?
Treatment for Alternaria requires fungicide to be sprayed directly on infected plants, as well as improvements in sanitation and crop rotation to prevent future outbreaks. Organic gardeners are limited to sprays of captan or copper fungicides, making control much more challenging.
Can tomatoes recover from blight?
Some tomatoes have been bred with a degree of blight tolerance – they may still catch the disease but are able to survive and yield some healthy fruit.
How do you get rid of blight on tomato plants?
3 Steps to Treating Tomato Blight
- Remove infected plant portions. The most essential aspect of treating blight is to remove and destroy any affected area of the tomato plant.
- Use fungicide. Utilizing a fungicide is one key way you can address your blight problem.
- Add mulch to the soil.
What causes alternaria leaf blight?
Alternaria leaf spot is caused by the fungus Alternaria dauci. Infection can be initiated by seedborne or windborne spores (conidia), which germinate in the presence of free moisture and penetrate leaves through wounds or natural openings.
Is it OK to eat tomatoes with blight?
Q Can you eat tomatoes if the plant has blight? A The fruit is not poisonous but blight causes it to be inedible as it doesn’t ripen and rots quickly. There is a possibility that blight spores could overwinter on other plant material but this hasn’t been tested scientifically yet.
When do you spray tomatoes for blight?
It can be used as soon as tomato plants are subjected to humid or rainy conditions that can cause blight. Premixed and concentrated chlorothalonil are available, and spraying it every seven to 10 days is ideal for prevention of blight. It can be used at any time before harvesting tomatoes.
How do you treat blight on tomato plants naturally?
Baking soda has fungicidal properties that can stop or reduce the spread of early and late tomato blight. Baking soda sprays typically contain about 1 teaspoon baking soda dissolved into 1 quart of warm water. Adding a drop of liquid dish soap or 2 1/2 tablespoons vegetable oil helps the solution stick to your plant.
How long does tomato blight last in soil?
Blight spores can survive in the soil for three or four years. Only plant tomatoes in the same bed every three to four years, and remove and burn tomato refuse in the fall.