Also known as Alternaria Blight. Physical Description Early blight begins as light-colored spots on leaves, eventually leading to the leaves dying and falling off. Google Images Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Alternaria solani Lifecycle Plants Affected tomatoes potatoes peppers (not a serious problem in peppers, but if it appears, […]
Leaf spot caused by a fungal disease that infects many vegetable crops. Physical Description Spots tend to have dark edges, as symptoms progress, centers may drop out of the spots leaving a shothole effect. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle Plants Affected Plants Unaffected Geographical Range […]
Quick Intro Physical Description Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Erwinia tracheiphila (only in cucurbits) Lifecycle Plants Affected Cucumbers Squash Zucchini Melons (not watermelons, though) Plants Unaffected Geographical Range Signs & Symptoms Whole Plant Leaves Flowers Fruit Roots/Tubers How to Positively Identify Treatment Prevention & Control […]
Sudden wilting is caused by various reasons, Bacterial Wilt being one of them. Bacterial wilt is caused by different pathogens, depending on whether you are dealing with nightshades (pepper, tomato, potato, eggplant, tomatillos) or cucurbits (cucumber, melons, squash). In tobacco, it is known as Granville Wilt. Since there are various reasons for a plant to […]
Google Images Physical Description In peppers, raised brown spots that look like warts, sometimes appearing water-soaked In brassicas (cabbage, broccoli, cauliflower, etc), infections start as small, dark specks on leaves. As the disease develops, numerous water-soaked leafspots appear. Leafspots remain small (0.125 inch in diameter). Older leafspots turn tan and may or may not have […]
Google Images: Anthracnose in Peppers Scholarly Articles on Anthracnose Physical Description Fungal disease that causes problems in many fruits and vegetables, as well as ornamental plants Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle Plants Affected Peppers Plants Unaffected Geographical Range Signs & Symptoms Whole Plant Leaves Flowers […]
Insect-vectored disease spread by thrips. Most common in the southeast Physical Description Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle Plants Affected Tomatoes Peppers Plants Unaffected Geographical Range Most common in the southeast Signs & Symptoms Whole Plant black streaks on petioles or stems growing tips are usually severely […]
Curly Top is an insect-vectored viral disease spread by beet leafhoppers, which affects many plants. The beet leafhopper loves warm and dry weather, so that’s when infections are most severe. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Plants Affected beet family crops: beets, spinach, swiss chard tomato family crops: tomatoes, potatoes, tomatillos, […]
Various fungi cause leaf blight. Plants affected: corn dill, parsley and other herbs symptoms: dark spots with yellow borders on leaves; leaves may turn yellow or drop off as the disease progresses control: spray foliage with fish emulsion or with sulfur to prevent the spread of mild infections (OGHB) fig lawns onion strawberries