Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Learn More About the Brown spot
Fruit Spot
Pathogenic infections can cause spots (typically black or brown) to appear on the fruit.
Solutions: Prune regularly - prune as a preventative measure as well as to remove any plants and plant parts affected by fruit Spot. Improve air circulation and drainage Fertilize as needed Spray applications - there are few programs that are effective at controlling fruit Spot for home growers, but the local cooperative extension may be able to provide information regarding potential chemical treatments if the disease is severe.
Learn More About the Fruit Spot
Rust disease
Rust fungus appears as reddish-brown mold deposits on the leaves, stems, and fruits of plants. In certain plants, it also causes reddish-brown spots and galls.
Solutions: Rust disease rarely kills plants, but it can weaken them and leave them vulnerable to other diseases. It's important to treat rust disease as soon as it is spotted. Remove infected leaves: eliminate fungal spores by picking off infected leaves and throwing them in the garbage. Do not compost them since this can spread the fungus to other plants. Use fungicide: A copper spray, sulfur powder, or broad-spectrum fungicide can help control a rust outbreak. Be sure to read all usage instructions carefully before applying. Water smarter: Keep plant leaves dry by watering in the morning so that the midday sun will dry them. It's also smart to use a soaker hose or drip irrigation to water only at the soil level.
Learn More About the Rust disease
Black spot
Infection by the black spot pathogen causes black spots or patches to appear on leaves.
Solutions: Some steps to take to address black spot include: Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves. Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash. Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil. Use a spreader in the fungicide spray to ensure better coverage.
Learn More About the Black spot
Yellow spot
Leaf spot can show up as yellow or white spots on the leaves.
Solutions: Diseases Fungicides can prevent the transmission of spores, but they may not treat the established infection. The first step is removing and disposing of all infected plant parts. Then apply recommended chemicals. For bacterial infections, apply a spray containing copper or streptomycin. For fungal infections, consult the local cooperative extension for recommendations on which fungicides will work best. Nutrient deficiency Apply a liquid fertilizer via foliar application to fix the deficiency quickly. Follow label directions regarding dosing instructions and application notes, such as not using before the rain or when temperatures are out of the recommended range. Incorrect watering Determine the water requirements for your specific plant, and follow accordingly. Some plants like consistently moist soil, and others like the soil to dry out slightly before being watered. Pests Thoroughly apply an insecticidal soap, an organic product like neem oil, or an appropriate chemical insecticide to the plant.
Learn More About the Yellow spot
Treat and prevent plant diseases.
AI-powered plant doctor helps you diagnose plant problems in seconds.
Download the App for Free