Express Delivery of all Seedlings to SA, VIC, NSW & QLD
What would you like us to grow ?
Can't find what you want? What would you like us to grow?
🛒 Orders must total a minimum of $50, excluding postage 🚚
Defining Diseases: A Guide for Growers

Defining Diseases: A Guide for Growers

Term Definition Characteristics Examples Emoticon Image Link
Blight A plant disease characterized by rapid and complete chlorosis, browning, and death of plant tissues. Rapid browning and death of leaves, stems, or flowers. Late Blight (Potatoes, Tomatoes) 🍂 Blight Image
Wilt A disease causing plants to lose turgor and collapse due to the loss of water. Drooping leaves and stems, stunted growth. Fusarium Wilt (Tomatoes), Verticillium Wilt (Eggplants) 🌿 Wilt Image
Mosaic Virus A virus causing mottled leaves, often with distorted or stunted growth. Mottled or mosaic-like pattern on leaves. Tobacco Mosaic Virus (TMV), Cucumber Mosaic Virus (CMV) 🍃🦠 Mosaic Virus Image
Powdery Mildew A fungal disease that forms a white or gray powdery coating on leaves and stems. White, powdery spots on leaves and stems. Powdery Mildew (Squash, Cucumbers) 🌿❄️ Powdery Mildew Image
Downy Mildew A fungal disease that causes yellow to brown patches on the upper leaf surface and gray mold underneath. Yellow, brown patches on leaves, gray mold on undersides. Downy Mildew (Lettuce, Spinach) 🌿🌫️ Downy Mildew Image
Root Rot A condition in which roots decay due to overly wet soil or fungal infection. Blackened, mushy roots, stunted growth. Phytophthora Root Rot (Peppers) 🌱💧 Root Rot Image
Anthracnose A fungal disease causing dark, sunken lesions on fruits, stems, and leaves. Dark, sunken spots on fruits and leaves. Anthracnose (Beans, Cucumbers) 🍂🖤 Anthracnose Image
Leaf Spot A disease causing small, round spots on leaves, which can be fungal or bacterial. Small, round spots on leaves, can be yellow, brown, or black. Bacterial Leaf Spot (Tomatoes), Septoria Leaf Spot (Tomatoes) 🍃⚫ Leaf Spot Image
Rust A fungal disease that causes reddish or brownish spots on leaves and stems. Reddish-brown pustules on leaves and stems. Rust (Beans, Asparagus) 🌿🟤 Rust Image
Clubroot A disease caused by a soilborne pathogen that affects the roots of cruciferous vegetables. Swollen, deformed roots, yellowing leaves. Clubroot (Cabbage, Broccoli) 🌱🥔 Clubroot Image
Scab A disease that causes rough, corky spots on the surface of tubers or fruits. Rough, corky spots on tubers or fruits. Potato Scab, Apple Scab 🍎🪵 Scab Image
Nematodes Microscopic roundworms that can cause root galls and stunted growth. Root galls, stunted growth, yellowing leaves. Root-Knot Nematodes (Tomatoes, Carrots) 🌱🐛 Nematodes Image
Bolting The premature flowering of a plant before it is harvested, often due to stress or temperature changes. Premature flowering, tall flower stalks, reduced yield. Lettuce, Spinach 🌿🌼 Bolting Image
Damping-Off A disease that affects seedlings, causing them to rot at the base and collapse. Seedlings collapse and die, usually at soil level. Damping-Off (Seedlings) 🌱❌ Damping-Off Image
Blossom End Rot A physiological disorder caused by calcium deficiency, resulting in dark, sunken spots on fruit ends. Dark, sunken spots on the blossom end of fruits. Blossom End Rot (Tomatoes, Peppers) 🍅⬇️ Blossom End Rot Image
Sunscald Damage caused by excessive exposure to direct sunlight, leading to white or brown patches on fruits. White or brown patches on fruits. Sunscald (Peppers, Tomatoes) ☀️🍅 Sunscald Image
Fusarium Wilt A soilborne fungal disease that causes wilting and yellowing of leaves, often starting on one side. Wilting, yellowing of leaves, stunted growth. Fusarium Wilt (Tomatoes, Melons) 🌿🟡 Fusarium Wilt Image
Verticillium Wilt A fungal disease causing yellowing, wilting, and dieback of leaves, often one side is affected first. Yellowing, wilting, dieback of leaves. Verticillium Wilt (Eggplants, Peppers) 🍂🟡 Verticillium Wilt Image
Botrytis (Gray Mold) A fungal disease that causes gray, fuzzy mold on leaves, stems, and fruits, often in cool, damp conditions. Gray, fuzzy mold on leaves, stems, and fruits. Botrytis (Tomatoes, Strawberries) 🌫️🍓 Botrytis Image
Black Rot A bacterial disease causing black, V-shaped lesions on leaves and blackening of veins. Black, V-shaped lesions on leaves, blackened veins. Black Rot (Cabbage, Cauliflower) 🍃⚫ Black Rot Image
Aphids Small, sap-sucking insects that can cause stunted growth and transmit diseases. Clusters of small insects, sticky residue, curled leaves. Aphids (various vegetables) 🐛🌿 Aphids Image
Thrips Tiny, slender insects that can cause silvering of leaves and transmit plant viruses. Silvered leaves, stunted growth. Thrips (Onions, Cucumbers) 🪲🍃 Thrips Image
Spider Mites Tiny arachnids that cause yellowing and speckling of leaves, often with webbing. Yellowing leaves, webbing on undersides. Spider Mites (Tomatoes, Beans) 🕸️🍃 Spider Mites Image
Whiteflies Small, white insects that feed on plant sap, causing yellowing and wilting. Yellowing leaves, visible small white insects. Whiteflies (Tomatoes, Peppers) 🦟🍃 Whiteflies Image
Cutworms Caterpillars that cut down young plants at the soil level. Severed seedlings at the base. Cutworms (Tomatoes, Peppers) 🌱✂️ Cutworms Image
Slugs and Snails Mollusks that feed on leaves, causing holes and ragged edges. Irregular holes in leaves, slimy trails. Slugs and Snails (Lettuce, Cabbage) 🐌🌿 Slugs and Snails Image
Magnesium Deficiency A nutrient deficiency causing interveinal chlorosis (yellowing between veins) in older leaves. Yellowing between leaf veins, green veins. Magnesium Deficiency (Tomatoes, Peppers) 🍃🟡 Magnesium Deficiency Image
Iron Deficiency A nutrient deficiency causing interveinal chlorosis in younger leaves. Yellowing between leaf veins, green veins in young leaves. Iron Deficiency (Spinach, Beans) 🍃🟡 Iron Deficiency Image
Nitrogen Deficiency A nutrient deficiency causing overall yellowing of older leaves and stunted growth. Yellowing of older leaves, stunted growth. Nitrogen Deficiency (Leafy Greens) 🌱🟡 Nitrogen Deficiency Image
Phosphorus Deficiency A nutrient deficiency causing purple or dark green coloration of leaves and stunted growth. Purple or dark green leaves, stunted growth. Phosphorus Deficiency (Tomatoes, Beans) 🍃🟣 Phosphorus Deficiency Image
Potassium Deficiency A nutrient deficiency causing brown scorching and curling of leaf tips and edges. Browning and curling of leaf edges, stunted growth. Potassium Deficiency (Tomatoes, Peppers) 🍂🟤 Potassium Deficiency Image
Edema A physiological disorder caused by water imbalance, resulting in blister-like swellings on leaves. Blister-like swellings on leaves. Edema (Tomatoes, Peppers) 🍃⚪ Edema Image
Cracking A condition where fruits develop splits or cracks due to irregular watering. Splits or cracks in fruit skin. Cracking (Tomatoes, Peppers) 🍅⚡ Cracking Image
Catfacing A condition causing deformed and scarred fruit, often due to cool temperatures during fruit set. Deformed and scarred fruits. Catfacing (Tomatoes) 🍅🕳️ Catfacing Image
White Blister A fungal disease causing white, blister-like pustules on leaves and stems, leading to leaf deformation. White blister-like pustules on leaves and stems. White Blister (Cabbage, Mustard) 🍂⚪ White Blister Image

 

Previous post
Next post
Back to Crop Blog

Leave a comment

Please note, comments must be approved before they are published