Articles & How-To's - Plant Diseases|
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- Black Root Rot of Greenhouse Floral Crops
Black root rot is a common and destructive fungal disease on greenhouse floral crops.
- Potato Pink Rot, Pythium Leak and Seed-Piece Decay
Pythium seed-piece decay often results in delayed emergence and poor stands. Infected seed pieces become a soft, watery mass in the soil.
- Scab of Potato Tubers
Scab symptoms are quite variable. Usually, roughly circular, raised, tan to brown, corky lesions of varying size develop randomly across tuber surfaces.
- Blackleg, Aerial Stem Rot, and Tuber Soft Rot of Potato
Blackleg, aerial stem rot, and tuber soft rot are all similar diseases caused by several types of soft-rot bacteria.
- Fusarium Dry Rot and Seed-Piece Decay of Potato
Fusarium dry rot is caused by several species of the soilborne fungus Fusarium. These fungi are common in most soils where potatoes are grown and survive as resistant ...
- Rhizoctonia Stem and Stolon Canker of Potato
This disease is caused by the fungus Rhizoctonia solani which can survive in the soil for many year's, even under relatively dry conditions.
- Mosaic Virus Diseases of Vine Crops
Mosaic diseases of vine crops in are caused by at least five different viruses: cucumber mosaic virus, squash mosaic virus, watermelon mosaic ...
- Damping-off and Root Rot of Beans
Root rots, damping-off before and after seedling emergence, and seed rots are destructive diseases of green, snap, lima, and dry beans.
- Powdery Mildew of Vine Crops
Two fungi cause powdery mildew on vine crops, Sphaerotheca fuliginea and Erysiphe cichoracearum.
- Septoria Leaf Spot of Tomatoes
Septoria lycopersici lives between tomato crops in the soil on infested debris of tomato and weeds.
- Fusarium Wilt of Vine Crops
Fusarium oxysporum is well adapted to life in the soil. It can survive season to season in old diseased vines or it can live free in infested soil for many year's in the
- Anthracnose of Tomato
Anthracnose is a common and serious disease of tomato fruit.
- Root Knot Nematode
Root knot is very distinctive because of the galls or swellings produced on roots and underground portions of stems. These deformations can often completely ruin crops ..
- Bacterial Ring Rot of Potatoes
Severe ring rot can result in wilting of leaves and stems along with yellowing and death of leaves.
- Late Blight of Potato and Tomato
Late blight appears on potato or tomato leaves as pale green, water-soaked spots, often beginning at leaf tips or edges.