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*  Helminthosporium solani - Wikipedia
These conidia germinate and infect tubers. The pathogen enters through the periderm or lenticels. After that, the pathogen ... Like with many other fungal plant diseases, a diagnosis can be made by looking for the specific sexual structures of the fungus ... The spores can still infect and cause disease in daughter tubers in the soil for about two years. It is also possible for the ... Silver scurf is a plant disease that is caused by the plant pathogen Helminthosporium solani. This pathogen is a fungus which ...
  https://en.wikipedia.org/wiki/Helminthosporium_solani
*  Powdery Mildew Diseases of Ornamental Plants
Powdery mildews, unlike most other fungal diseases, do not need free water to germinate and infect. They are favored by high ... Outside, the pathogen can overwinter as mycelium in infected plant parts or in resting structures (cleistothecia) produced by ... When spores land upon a susceptible host, they germinate and send a specialized feeding structure into the epidermis and obtain ... Erisyphe has a wide host range and can infect many plants in the Asteraceae family, while Sphaerotheca pannosa var. rosae is ...
  http://ag.umass.edu/print/9285
*  Pythium volutum - Wikipedia
Oospores are resting structures that allow the pathogen to overwinter in the soil. Once the oospore is formed, the oospore will ... This is when soil temperatures and moisture levels are optimal for spores to infect the roots of plants. Index Fungorum USDA ... Fungicides work by killing the fungi and the fungal spores, effectively managing the disease. Beginning with an already ... www.turffiles.ncsu.edu/diseases/pythium-root-dysfunction. Vann, Steven, and Aaron Patton. "Pythium Diseases of Turfgrass." ...
  https://en.wikipedia.org/wiki/Pythium_volutum
*  Fungi by Emma Ritcey on Prezi
This is when structures grow from the spores. For example, when the hyphae grow from spores to produce a multicellular mycelium ... Fungal diseases can result in the loss of an entire crop if they aren't treated with antifungal agents.. Food Spoilage. Fungi ... A fungal plant pathogen that causes black knot on trees.. It produces a rough, black substance that encircles the branches of ... infections infect many important agriculture crops. They can occur preharvest, while the hosts are still in the field, but ...
  https://prezi.com/5qt3qvlmxotp/fungi/
*  Erysiphe cruciferarum - Wikipedia
This pathogen is somewhat host-specific in that it targets plants in the Brassica family. This pathogen can also infect ... Erysiphe cruciferarum is a fungal pathogen that belongs to the phylum Ascomycota. The pathogen overwinters in survival ... They are dispersed primarily by wind and germinate on the surface of plant tissue. They infect and feed on the plant via ... Wind and rain can also spread the spores of E. cruciferarum. Adding vegetative wind barriers can impede the spores' travel into ...
  https://en.wikipedia.org/wiki/Erysiphe_cruciferarum
*  Glomerella graminicola - Wikipedia
As these practices are widespread, as can be the pathogen. C. graminicola is a fungal pathogen that colonizes and infects many ... Conidial spores infect young plants through the epidermis or stomata. Anthracnose develops rapidly in cloudy, overcast ... These lesions usually occur early in the season and are how this pathogen is distinguished from other diseases. Top die-back is ... In the spring, fruiting structures (acervuli) form from corn residue and produce spores (conidia) that are dispersed by wind ...
  https://en.wikipedia.org/wiki/Glomerella_graminicola
*  Botrytis cinerea - Wikipedia
... refers to the bunching of the fungal spores on their conidiophores, and "ashes" just refers to the greyish colour of the spores ... diseases List of pea diseases List of lentil diseases List of anemone diseases List of almond diseases List of apple diseases ... Sclerotia and the asexual conidia spores contribute to the widespread infection of the pathogen. A low pH is preferred by the ... These conidia are asexual spores that will continue to infect the plant and surrounding hosts throughout the growing season ...
  https://en.wikipedia.org/wiki/Botrytis_cinerea
*  Sudden Death Syndrome - Wikipedia
When conditions are favorable, these spores germinate on seedling roots and infect the plant. From the V1 to R1 stages ( ... the timing isn't right and the pathogen can still infect the plants. Foliar applications of fungicides have no effect on ... Blue Fungal spore masses are produced on the roots of the plant where macroconidia are formed. Macroconidia are one of the ... Most of the SDS symptoms can be confused with other factors like nutrient deficiencies and some other diseases like brown stem ...
  https://en.wikipedia.org/wiki/Sudden_Death_Syndrome
*  Gibberella zeae - Wikipedia
Spores are forcibly discharged and can germinate within six hours upon landing on the plant surface. The scab disease is ... The pathogen is capable of causing a variety of diseases: head blight or 'scab' on wheat (Triticum), barley (Hordeum), rice ( ... eventually causing them to turn black and disintegrate when they are infected by the fungal pathogen. Wheat Brown, dark purple- ... These structures overwinter in the soil or in plant debris on the field and give rise to the mycelium in the next season. ...
  https://en.wikipedia.org/wiki/Gibberella_zeae
*  Introduction to Fungi
... they are overwintering structures that can germinate directly, or give rise to structures in which the meiospores are formed. ... an example of a canker-causing fungal pathogen. Cankers develop when the pathogen kills the phloem and vascular cambium in a ... Many of the same fungi that kill seedlings can also infect the roots of mature plants and cause root and crown rot diseases. ... The spores germinate and grow through the pores. The fungus is transported throughout the plant in this manner. The first ...
  http://www.apsnet.org/edcenter/intropp/pathogengroups/pages/introfungi.aspx
*  Stromatinia cepivora - Wikipedia
However, the sclerotia and fungal growth are inhibited above 70 F. With the pathogen favoring cool wet summers, irrigation can ... Sclerotia infect the host and spread. They are formed on the decaying host tissue and then are left free in the soil. To ... These survival structures (sclerotia) can detach and persist for years in a dormant state, waiting for a susceptible host. The ... This is a unique fungus as it does not produce any spores of importance to a normal life cycle. It exists and overwinters as ...
  https://en.wikipedia.org/wiki/Stromatinia_cepivora
*  Sclerophthora macrospora - Wikipedia
Oospores are sexual spores produced by the fusion of an antheridium and oogonium. The oospore germinates and produces ... Since Sclerophthora macrospora can infect a wide range of hosts, many growers will have to find a way to manage the pathogen. ... Preventive fungicides applied under certain guidelines can reduce the amount of the pathogen's structures in the field - but ... The common names of the diseases associated with Sclerophthora macrospora include "crazy top disease" on maize and yellow tuft ...
  https://en.wikipedia.org/wiki/Sclerophthora_macrospora
*  Pythium ultimum - Wikipedia
Pythium ultimum is a plant pathogen. It causes the damping off and root rot diseases of hundreds of diverse plant hosts ... Pythium Genome Database Index Fungorum USDA ARS Fungal Database Farr, D. F. and Rossman, A. Y. (2014) Fungal Databases, ... Infections of seeds and roots are initiated by both the mycelia and spores of P. ultimum. Two spore types are made, depending ... Mycelia and oospores in soil can infect seeds or roots. This leads to wilting, reduced yield, and ultimately plant death. ...
  https://en.wikipedia.org/wiki/Pythium_ultimum
*  Small Things Considered: Five Questions About Oomycetes
The zoospores germinate to make more hyphae, which make more spores, and so on. When zoospores of some species germinate, they ... Likewise, those concerned with aquaculture are alert to a variety of 'fungal' diseases, including one called saprolegniasis ... the late potato blight pathogen. There we will recount a bit of Irish history and then discuss aspects of the pathogen's genome ... How Do Oomycetes Infect Their Hosts?. Many, perhaps most, of pathogenic oomycetes have a broad host range, meaning that they ...
  https://schaechter.asmblog.org/schaechter/2009/11/fiv-1.html
*  Cranberries: The Most Intriguing Native North American Fruit
The spectrum of diseases affecting cranberry is also unique, with several of the fungal pathogens being specialized to ... It is quite possible that this fungus is not there to see, and that another fungal pathogen has quietly been doing its dirty ... Cottonball. Ascospores of Monilinia oxycocci infect the succulent new shoot growth in the spring causing 'tip blight.' The ... These black, football-shaped structures mature in late spring and open along a median slit when wet. The lips of apothecia are ...
  http://www.apsnet.org/publications/apsnetfeatures/Pages/Cranberries.aspx
*  Rust (fungus) - Wikipedia
Later they germinate to produce basidia. IV-Basidiospores from Teliospores. These haploid spores often infect the alternate ... The control methods of rust fungus diseases depend largely on the life cycle of the particular pathogen. The following are ... Deising, H.B., S. Werner, and M. Wernitz, The role of fungal appressoria in plant infection. Microbes Infect, 2000. 2(13): p. ... Inside the stoma, the hyphae tips flatten out to form structures known as appressoria that lock to the cell walls. It is ...
  https://en.wikipedia.org/wiki/Rust_(fungus)
*  Podosphaera pannosa - Wikipedia
They also do not need water to germinate and infect the rose. In fact, if there is too much water present on plant surfaces for ... The disease cycle of rose powdery mildew starts when the sexual spores, ascospores, of the pathogen survive the winter in a ... "Diseases of Field Crops: Cereal Diseases." Ministry of Agriculture, Food, and Rural Affairs. Field Crop Program Lead, 7 Apr. ... a prolonged period of time the fungal growth is inhibited and the spores can actually die. Rose powdery mildew can also grow in ...
  https://en.wikipedia.org/wiki/Podosphaera_pannosa
*  Panama disease - Wikipedia
It is a type of Fusarium wilt, caused by the fungal pathogen Fusarium oxysporum f. sp. cubense (Foc). The pathogen is resistant ... This means that the survival and dispersal of the disease relies on purely asexual spores and structures. The disease survives ... Finally, the disease is known to infect certain weeds without showing symptoms, meaning it can survive in the absence of banana ... Hybrid bananas are being created in the hope of generating a new variety with strong resistance to diseases. Genetic engineers ...
  https://en.wikipedia.org/wiki/Panama_disease
*  Pythium irregulare - Wikipedia
Once zoospores reach the root or seed, they encyst, germinate, and infect via a germ tube. Once infection has been established ... Pythium irregulare is a soil borne oomycete plant pathogen. Oomycetes, also known as "water molds", are fungal-like protists. ... asexual motile spores) and oospores (sexual resting spores). Pythium irregulare is an oomycete that causes pre- and post- ... All three of these diseases caused by P. irregulare can be caused by other pathogens as well, so a disease diagnosis is not ...
  https://en.wikipedia.org/wiki/Pythium_irregulare
*  PP-232/PG133: 2013 Florida Plant Disease Management Guide: Guava (Psidiumguajava)
Conidia (asexual spores) are the fungal structures responsible for anthracnose infection. Conidia are produced on dead twigs, ... biflagellate zoospores are the primary infection stage of the pathogen. Quadriflagellate spores have not yet been identified as ... Guava Diseases Caused by Nonfungal Agents. Algal Leaf Spot. Algal leaf spot occurs on a wide range of tropical fruit species. ... The fungi can infect fruit and cause lesions and fruit cracking which may lead to secondary infections of other opportunistic ...
  http://edis.ifas.ufl.edu/pg133
*  Septoria cannabis - Wikipedia
Sanitation of your growing area can make all of the difference when battling diseases of any nature. Many diseases like ... Eliminating survival structures that ascospores rely on is the most important aspect in disease control for Septoria and this ... When the conditions are favorable (summer-fall) the spores are released and carried by wind or raindrops to a nearby host. Once ... Septoria cannabis is a species of plant pathogen from the genus Septoria that causes the disease commonly known as Septoria ...
  https://en.wikipedia.org/wiki/Septoria_cannabis
*  Apple scab
Both contact and systemic fungicides are applied before infection to prevent fungal spores from germinating or penetrating host ... the apple scab pathogen will not infect pear, and the pear scab pathogen will not infect apple. ... Later-season fungicide sprays are often targeted toward other fungal diseases, but also may be effective against secondary ... Venturia inaequalis overwinters in fallen leaf and fruit debris as pseudothecial initials. These structures emerge in early ...
  http://www.apsnet.org/edcenter/intropp/lessons/fungi/ascomycetes/Pages/AppleScab.aspx
*  Fusarium crown rot of wheat - Wikipedia
Crown Rot of Wheat is caused by the fungal pathogen Fusarium pseudograminearum. F. pseudograminearum is a member of the fungal ... As spring arrives the chlamydospores are signaled to germinate, producing asexual structures called conidia. As mentioned ... F. pseudograminearum can infect seedlings, but can also infect the crowns of mature wheat hosts. Crown rot of wheat produces ... These sexual spores then land on a mature wheat host and would start to colonize the stem and area around the crown as summer ...
  https://en.wikipedia.org/wiki/Fusarium_crown_rot_of_wheat
*  Phomopsis blight of juniper - Wikipedia
... the pathogen does not infect healthy, mature twigs. Within 3 weeks of infection P. juniperovora can produce viable spores for ... Spores then germinate, infecting immature scales (minute needles) of trees or shrubs in the cypress family (Cupressaceae); ... Phomopsis blight of juniper is a foliar disease discovered in 1917 caused by the fungal pathogen Phomopsis juniperovora. The ... Phomopsis juniperovora reproduces by conidia (asexual spores), which are produced in survival structures called pycnidia. ...
  https://en.wikipedia.org/wiki/Phomopsis_blight_of_juniper
*  Urocystis agropyri - Wikipedia
The leaf discoloration is due to fungal structures called sori, which are clusters of spore-bearing structures. During ... This pathogen prefers arid summers, moderate temperatures, and mild winters. Flag smut fungi germinate in dry soils when the ... Since U. agropyri spores germinate in dry soils, maintaining wetter soils helps to diminish their viability. Carboxin is a ... "Smut diseases G. Fuentes-Dávila, B.J. Goates, P. Thomas, J. Nielsen, B. Ballantyne." Smut diseases. N.p., n.d. Web. 22 Oct. ...
  https://en.wikipedia.org/wiki/Urocystis_agropyri