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Moniliophthora perniciosa (previously Crinipellis perniciosa) [1] is a fungus that causes "witches' broom disease" (WBD) of the cocoa tree T. cacao. [2] This pathogen is currently limited to South America, Panama and the Caribbean, and is perhaps one of the best-known cocoa diseases, thought to have co-evolved with cocoa in its centre of origin (first recorded in the Brazilian Amazon in 1785).
The genus Helopeltis, also sometimes known as mosquito bugs, is a group of heteropterans in the family Miridae (capsid bugs) and tribe Dicyphini.They include pests of various crops, including cacao, cashew, cotton and tea.
Rhizoctonia solani root rot on corn roots, magnified 0.63X. Damping off can be prevented or controlled in several different ways. Sowing seeds in a sterilized growing medium can be effective, although fungal spores may still be introduced to the medium, either on the seeds themselves or after sowing (in water or on the wind).
Powdery mildew, a biotrophic Ascomycete fungus. Most phytopathogenic fungi are Ascomycetes or Basidiomycetes.They reproduce both sexually and asexually via the production of spores and other structures.
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Fungal diseases; Banded sclerotial (leaf) disease Thanatephorus cucumeris = Pellicularia sasakii Rhizoctonia solani [anamorph] . Black rot Ceratocystis adiposa Chalara sp. [anamorph]
Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight.
Mycosphaerella is a genus of ascomycota.With more than 10,000 species, it is the largest genus of plant pathogen fungi.. The following introduction about the fungal genus Mycosphaerella is copied (with permission) from the dissertation of W. Quaedvlieg (named: Re-evaluating Mycosphaerella and allied genera).