Try some less harsh solutions first. Our favorite all-purpose cure is to mix water, baking soda, lemon juice and a very little bit dish detergent. Put this in a spray bottle and mist the affected parts of the plant. If you mix and use this recipe, make sure you cover all open areas to your nutrient solution or the dish detergent will get into it, causing soap bubbles.
Description: Fungus causing whitish spots on the underside of the leaves. Eventually the leaves shrivel and die. Thrives in high humidity.
Treatment: Spray with homemade all purpose cure described earlier.
Description: Fungus rots a plants roots.
Treatment: Cut away rotted root portions and spray with a fungicide.
Description: Dark brown spots on leaves, stems and plant fruit seriously weakening the plant.
Treatment: Treat with harsh chemicals (maneb, zineb).
Description: Fungus caused by over watering where leaves become marked with dark smears and shrivel. Hardly ever occurs in hydroponics plants
Treatment: Spray with fungicide and remove damaged leaves.
Description: A fungus affecting small plants where stems meet soil causing them to fall over and die.
Treatment: Remove diseased sections. If it has affected a significant number of plants, replant in new soil and clean containers.
Description: Grayish white, fuzzy leaf growth caused by inadequate ventilation. Not common in hydroponics gardens.
Treatment: Increase ventilation and remove affected leaves
Description: Slightly raised, powdery red pustules on the underside of the leaves causing them to turn yellow then brown and die. Helped along by high humidity. Very contagious.
Treatment: Apply harsh chemicals like zineb or maneb.
Description: Roots turn into a mass of club shaped tubers. Plants may become stunted.
Treatment: Dust with fungicide
Crown and Stem Rot
Description: Fungus causes plant to turn pulpy and rot.
Treatment: Cut away rotted plant portions and spray with a fungicide.