Category Archives: Diseases

Black Leg

Fungal disease that affects cole crops (broccoli, cabbage, mustards, etc) primarily in warm wet seasons. Physical Description Google Images Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Phoma lingam Lifecycle   Plants Affected Broccoli Brussels Sprouts Cabbage Cauliflower Kale Kohlrabi Mustard (some) Radishes (some) Turnips Plants Unaffected   Geographical Range   Signs & Symptoms […]

Clubroot

Clubroot is caused by the soil-borne fungus Plasmodiophora brassicae, and it is the most serious disease of the brassica family. Physical Description Very serious problem where fungus attacks roots and kills the plant Google images of clubroot Species & Taxonomy Kingdom: Rhizaria Phylum: Cercozoa Class: Phytomyxea Order: Plasmodiophorales Family: Plasmodiophoraceae Genus Species: Plasmodiophora brassicae Lifecycle spores are […]

White Mold of Tomato & Pepper Plants

Quick Intro Physical Description Fungal wilt disease that starts as water-soaked spots on stems, then white moldy growth appears on the stems and then the branches wilt Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle   Plants Affected peppers tomatoes Plants Unaffected   Geographical Range   Signs & Symptoms Whole Plant water-soaked […]

Southern Blight

Fungal disease that spreads in hot, moist weather. Physical Description Southern blight can be seen as cottony white mold on the soil at the stem base of plants. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle   Plants Affected  Peppers Plants Unaffected   Geographical Range   Signs & Symptoms Whole Plant White […]

Soft Rot

Quick Intro Physical Description Bacterial disease of the fruit or tubers of a vegetable, characterized by watery and soft decay of the tissue. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: caused by several types of bacteria, but most commonly: Erwinia Pectobacterium Pseudomonas Lifecycle These pathogenic bacteria can grow at a wide range […]

Powdery Mildew

Powdery mildew on Lavender Bergamot (Monarda fistulosa)

Powdery mildew is a common fungal disease that effects many types of plants, and is fairly easy to manage. It causes poor growth and lower yields, but seldom kills the plant. There are many different species of powdery mildew that cause the disease on many different species of plants. See list of species and their […]

Phytophthora Blight

Quick Intro Physical Description Soil borne fungal disease that affects foliage and fruits. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle   Plants Affected   Plants Unaffected   Geographical Range   Signs & Symptoms Whole Plant Leaves Flowers Fruit on peppers: spots form on the pepper with white mold present Roots/Tubers How […]

Tobacco Mosaic Virus

Quick Intro Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Lifecycle   Plants Affected   Plants Unaffected   Geographical Range   Signs & Symptoms Whole Plant stunted plants twisted growth Leaves yellow mottling of leaves Flowers Fruit Roots/Tubers How to Positively Identify Treatment Prevention & Control   Cultural Controls: Habitat: Temperature & Humidity: […]

Fungal Foot Rot

Physical Description Fungal foot rot causes the plant to wilt; if the roots are wet & brown, then it’s probably root rot (VGPS) Species & Taxonomy Kingdom: Chromalveolata Phylum: Heterokontophyta Class: Oomycetes Order: Peronosporales Family: Pythiaceae Genus Species: Phytophthora Plants Affected   Plants Unaffected   Geographical Range   Signs & Symptoms Whole Plant generalized wilting Leaves Flowers Fruit Roots wet & […]