Answer: Disease Spots on leaves are often caused by plant disease. You may be able to salvage the plant by improving air circulation so that it dries out more quickly between watering and removing diseased foliage. Throw away any diseased plant material so it doesn't spread to other plants.
To destroy infected material double-bag the plants and soil in garbage bags and dispose of according to local regulations. Dispose of contaminated containers, or sanitize the remaining containers in a 10% bleach solution if you plan to reuse them. Infected material may also be burned, or buried to at least 3 ft.
“Water more often, and give the plant the same amount of water each time,” Morganthaler advises. “Make sure to give the water time to soak down to the roots.” A soil moisture meter can help you monitor the soil's moisture—and make sure you're on the right track for your specific plant.
If fungus becomes established, remove infected leaves from plants to stop the spores from spreading. Commercial fungicides to treat powdery mildew are also available. For complete plant protection, spray with sulfur-based or copper-based fungicide spray once every ten days from spring to fall.
For plants with a fungal, viral, or bacterial disease, cook up a batch of what I call “garlic soup.” Puree two cloves of garlic in a blender for a minute. Slowly add 1 quart of water, and continue blending for about six minutes. Strain the mixture, and add 1/8 teaspoon of liquid soap.
Plants can recover from viral disease and achieve a virus-tolerant state. Virus-induced diseases cause severe damages to cultivated plants resulting in crop losses. Interestingly, in some cases, the diseased plants are able to re-gain health, further grow and develop normally.
MAKE IT: Mix 1 teaspoon of baking soda and 2-3 drops of liquid soap in 1 liter of water. Spray the solution on the infected plants. Baking soda helps the plants become less acidic and prevents fungal growth.
To create a solution that prevents and treats disease, add a heaping tablespoon of baking soda, a teaspoon of vegetable oil, and a small amount of mild soap to a gallon of water and spray the tomato plants with this solution. This needs to be reapplied regularly to maintain its efficiency.
Can We Use Sugar Water For Dying Plants? Although it is not considered a fertilizer, you can use sugar if your plants aren't doing so well. Sugar water in plants can help the microorganisms in the soil break down all the nutrients. It is vastly not recommended, though, to use just the sugar as plant food to save them.
Are coffee grounds good for plants? Coffee grounds are an excellent compost ingredient and are fine to apply directly onto the soil around most garden plants if used with care and moderation. Coffee grounds contain nutrients that plants use for growth.
Saturate the soil with 1/2 cup hydrogen peroxide 3% per 1 litre water. Put wet soil in a watertight container and leave overnight before planting. This kills pathogens such as fungi and bacteria including insect eggs and nematodes (roundworms).
Feeding your plant is especially important during the growing seasons of spring and summer. A malnourished plant will instantly show weak stems or discolored leaves, so to revive a dead or dying plant, you'll need compost or fertilizer. Simply repotting your dying plant is a great hack on how to revive a dead plant.
On ornamental plants, spray the infected plant with Fungus Clear between April and September. Prune out and dispose of infected shoots as soon as you see them, but don't compost them. Raking up and destroying fallen infected leaves in autumn will help reduce spores spreading the following spring.
Heating the soil is very effective and the soil can be used immediately after cooling, unlike chemically treated soil. Many plant pathogens are killed by short exposures to high temperatures. Most plant pathogens can be killed by temperatures of 140°F (60°C) for 30 minutes.
Treating Blight
If blight has already spread to more than just a few plant leaves, apply Daconil® Fungicide Ready-To-Use, which kills fungal spores and keeps blight from causing further damage.
Tomatoes are prone to magnesium deficiency later in the growing season, which can show with yellowing leaves and diminished production. Ultra Epsom Salt treatments at the beginning of their planting and throughout their seasonal life can help to prevent and remedy magnesium deficiency in your tomato plants.
Tomatoes prefer full sun. For the best growth and fruit production, choose an area of the garden where tomato plants will receive a minimum eight hours of direct sunlight per day. Provide proper spacing. Crowding tomato plants increases competition for needed resources, which can reduce fruit size.
Thinning plants or rearranging surroundings can help. Prune infected plant parts promptly and dispose of the debris — don't compost it. Always cut back into healthy tissue, so no disease remains. Sterilize your pruning implements by wiping them with a common household disinfectant.
There are a variety of symptoms of plant disease such as spots, dead or dying tissue, fuzzy spores, bumps, bulges, and irregular coloration on the fruits. The disease triangle consists of a susceptible plant, a pathogen, and favorable environmental conditions that allow the pathogen to infect the plant.
The component helps boost the plant's immune system, just like it does for us. A diluted solution of aspirin water for plants provides accelerated germination and some resistance to disease and pests. Aspirin in vegetable gardens has been shown to increase plant size and yield.
A good place to start is a mix of mild liquid soap and water, sprayed onto houseplants. One teaspoon of soap per litre of water will do the job. It sounds simple, but this formula will treat a lot of common houseplant pests. Add just a teaspoon of bicarbonate of soda and it becomes a great fungicide as well.
There are almost countless uses for cinnamon in the garden: it can be used as a nature-friendly pesticide, a repellent against annoying insects, or as a catalyst to promote root growth in plant cuttings.
Vinegar is a contact herbicide, so you can unintentionally kill plants in your garden if you accidentally spray them with vinegar. Using vinegar as a weed killer works best on newer plants. "On more established plants, the roots may have enough energy to come back even if the leaves you sprayed have died.