Rots (other)
Plant rots are a diverse group of infectious diseases characterized by the enzymatic degradation of plant tissues, leading to soft, mushy, or discolored lesions. The causative agents include various soil-borne fungi such as Fusarium spp., Pythium spp., Rhizoctonia solani, and pathogenic bacteria like Erwinia carotovora. These pathogens thrive by secreting enzymes that break down pectin and cellulose in plant cell walls.
What the section contains
Blossom-end rot
Blossom-end rot
333 products
Helminthosporium root rot
Helminthosporium root rot
257 products
Black rot
Xanthomonas campestris
104 products
Wet bacterial rot
Wet bacterial rot
22 products
Botrytis root rot
Botrytis spp.
20 products
Oomycete root rot
Oomycete root rot
15 products
Potato tuber rot
Potato tuber rot
12 products
Potato stem and leaf rot
Potato stem and leaf rot
8 products
Chlorotic spot
5 products
Gray mold
Gray rot of berries
3 products
Soft rot
Wet rot
2 products
Dry rot of root crops
Dry rot of root crops
1 product
Phytophthora root and stem rot
Phytophthora spp.
1 product
Brown rot of fruit crops
European spp.
Cacao Pod Rot
Moniliophthora spp.
Carrot leaf blight
Carrot temperate
Chlorotic leaf distortion
Coconut foliar decay
Dry bud rot
Dry root rot
Eurotiomycetes
Eurotiomycetes
Peanut chlorotic streak
Peanut chlorotic fan-spot virus
Phomopsis
Phomopsis spp.
Plant amoebiasis
Amoeba proteus
Powdery mildew of cucurbits
Sphaerotheca fusca
Powdery mildew of cucurbits
Sphaerotheca xanthii
Powdery mildew of roses
Sphaerotheca pannosa
Proterozoea
Proterozoea
Protists
Protista
Protomycetales diseases
Protomycetales
Protostelea
Protostelea
Protostelia
Protostelia
Protosteliaceae
Protosteliaceae
Protostelids
Protostelida
Protostelium
Protostelium
Protostelium mycophagum
Protostelium mycophagum
Pseudobulb and root rot
Sclerotinia rot
Sclerotiniaceae
Sclerotinia rot of onion
Sclerotinia allii
Sporidesmium sclerotivorum
Sporidesmium sclerotivorum
Strawberry necrotic shock
Thermoprotei
Thermoprotei
Products in this section · 12
Rots (other)
A wide range of crops is susceptible to rot diseases, from cereals and vegetables to ornamental flowers and fruit trees. Root and crown rots are particularly destructive as they compromise the plant's vascular system, hindering water and nutrient uptake. This often results in stunted growth, chlorosis, wilting, and, in severe cases, the complete collapse of the plant.
Symptoms vary depending on the pathogen but generally involve darkening of tissues, foul odors (common in bacterial soft rots), and the formation of visible fungal structures like mycelium or sclerotia. Infected fruits typically show water-soaked spots that expand rapidly, eventually covering the entire surface in a decayed, sunken mass, often accompanied by fuzzy mold growth.
The spread and development of rot diseases are primarily dictated by environmental conditions, particularly high humidity, poor soil drainage, and lack of air circulation. Excessive soil compaction and high nitrogen levels can create a microclimate favorable for pathogen proliferation. These fungi often persist in the soil for years, waiting for a susceptible host to appear under favorable weather conditions.
The economic impact of plant rots can be devastating, leading to significant yield losses in the field and catastrophic spoilage during post-harvest storage. Effective management strategies involve a holistic approach:
- Selecting resistant crop varieties.
- Ensuring proper field drainage and irrigation management.
- Implementing strict crop rotation schedules.
- Treating seeds with fungicides before planting.
- Maintaining field hygiene by removing and destroying crop residues.