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List of hemp diseases

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List of hemp diseases

Hemp leaf being attacked by insects

This is a list of diseases of hemp (Cannabis sativa).

Bacterial diseases

Bacterial diseases
Bacterial blight Pseudomonas cannabina
Crown gall Agrobacterium tumefaciens
Striatura ulcerosa Pseudomonas amygdali pv. mori
Xanthomonas leaf spot Xanthomonas campestris pv. cannabis

Fungal diseases

Fungal diseases
Anthracnose

Colletotrichum coccodes

= Colletotrichum atramentarium
= Colletotrichum dematium
Black dot disease

Epicoccum nigrum

= Epicoccum purpurascens
Black mildew Schiffnerula cannabis
Brown blight

Alternaria alternata

= Alternaria tenuis
Brown leaf spot and stem canker

Ascochyta spp.
Ascochyta prasadii
Phoma spp.
Didymella spp. [teleomorph]
Phoma exigua
Phoma glomerata
Phoma herbarum

Charcoal rot Macrophomina phaseolina
Cladosporium stem canker

Cladosporium cladosporioides
Cladosporium herbarum
Mycosphaerella tassiana [teleomorph]

Curvularia leaf spot

Curvularia cymbopogonis
Curvularia lunata
Cochliobolus lunatus [teleomorph]

Cylindrosporium blight

Cylindrosporium spp.
Cylindrosporium cannabinum

Damping-off

Botrytis cinerea
Botryotinia fuckeliana [teleomorph]
Fusarium oxysporum
Fusarium solani
Nectria haematococca [teleomorph]
Macrophomina phaseolina
Pythium aphanidermatum
Pythium debaryanum
Pythium ultimum
Rhizoctonia solani
Thanatephorus cucumeris [teleomorph]

= Pellicularia filamentosa
Downy mildew

Pseudoperonospora cannabina
Pseudoperonospora humuli

Fusarium foot rot and root rot Fusarium solani
Fusarium stem canker

Fusarium sulphureum
Gibberella cyanogena [teleomorph]

= Gibberella saubinetii
Fusarium wilt

Fusarium oxysporum f.sp. cannabis
Fusarium oxysporum f.sp. vasinfectum

Gray mold Botrytis cinerea
Hemp canker Sclerotinia sclerotiorum
Leptosphaeria blight

Leptosphaeria cannabina
Leptosphaeria woroninii
Leptosphaeria acuta

Olive leaf spot

Cercospora cannabis
Pseudocercospora cannabina

Ophiobolus stem canker

Ophiobolus cannabinus
Ophiobolus anguillides

Phoma stem canker

Phoma herbarum
Phoma exigua

Phomopsis stem canker

Phomopsis cannabina
Phomopsis achilleae
Diaporthe arctii var. achilleae [teleomorph]

Phymatotrichum root rot

Cotton root rot

Phymatotrichopsis omnivora
= Phymatotrichum omnivorum
Pink rot Trichothecium roseum
= Cephalothecium roseum
Powdery mildew

Leveillula taurica
Oidiopsis taurica [anamorph]
Sphaerotheca macularis

= Sphaerotheca humuli

Oidium sp. [anamorph]

Red boot Melanospora cannabis (secondary on hemp canker)
Rhizoctonia soreshin and root rot Rhizoctonia solani
Rust

Aecidium cannabis
Uredo kriegeriana
Uromyces inconspicuus

Southern blight

Sclerotium root and stem rot

Sclerotium rolfsii
Athelia rolfsii [teleomorph]

Stemphylium leaf and stem spot

Stemphylium botryosum
Pleospora tarda [teleomorph]
Stemphylium cannabinum

Tar spot Phyllachora cannabis
Tropical rot

Lasiodiplodia theobromae

= Botryodiplodia theobromae
Twig blight

Dendrophoma marconii
Botryosphaeria marconii [teleomorph]

Verticillium wilt

Verticillium albo-atrum
Verticillium dahliae

White leaf spot Phomopsis ganjae
Yellow leaf spot

Septoria cannabis
Septoria cannabina

Nematodes, parasitic

Nematodes, parasitic
Cyst

Heterodera humuli
Heterodera schachtii

Needle

Paralongidorus maximus

= Longidorus maximus
Root-knot

Meloidogyne incognita
Meloidogyne javanica

Stem

Ditylenchus dipsaci

Viral diseases

Viral diseases
Alfalfa mosaic & Lucerne mosaic genus Alfamovirus, Alfalfa mosaic virus (AMV)
Arabis mosaic genus Nepovirus, Arabis mosaic virus (ArMV)
Cucumber mosaic genus Cucumovirus, Cucumber mosaic virus (CMV)
Hemp mosaic genus Tobamovirus, Sunn-hemp mosaic virus
Hemp streak genus ?, Hemp streak virus Transmitted by thrips, most likely a Tospovirus

Phytoplasmal diseases

Phytoplasmal diseases
Witches' broom

Miscellaneous diseases and disorders

Miscellaneous diseases and disorders
Fasciation Cause undetermined
Grey fleck Magnesium deficiency
Tipburn & leaf margin necrosis Potassium deficiency

References


-- Module:Hatnote -- -- -- -- This module produces hatnote links and links to related articles. It -- -- implements the and meta-templates and includes -- -- helper functions for other Lua hatnote modules. --


local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType local mArguments -- lazily initialise Module:Arguments local yesno -- lazily initialise Module:Yesno

local p = {}


-- Helper functions


local function getArgs(frame) -- Fetches the arguments from the parent frame. Whitespace is trimmed and -- blanks are removed. mArguments = require('Module:Arguments') return mArguments.getArgs(frame, {parentOnly = true}) end

local function removeInitialColon(s) -- Removes the initial colon from a string, if present. return s:match('^:?(.*)') end

function p.findNamespaceId(link, removeColon) -- Finds the namespace id (namespace number) of a link or a pagename. This -- function will not work if the link is enclosed in double brackets. Colons -- are trimmed from the start of the link by default. To skip colon -- trimming, set the removeColon parameter to true. checkType('findNamespaceId', 1, link, 'string') checkType('findNamespaceId', 2, removeColon, 'boolean', true) if removeColon ~= false then link = removeInitialColon(link) end local namespace = link:match('^(.-):') if namespace then local nsTable = mw.site.namespaces[namespace] if nsTable then return nsTable.id end end return 0 end

function p.formatPages(...) -- Formats a list of pages using formatLink and returns it as an array. Nil -- values are not allowed. local pages = {...} local ret = {} for i, page in ipairs(pages) do ret[i] = p._formatLink(page) end return ret end

function p.formatPageTables(...) -- Takes a list of page/display tables and returns it as a list of -- formatted links. Nil values are not allowed. local pages = {...} local links = {} for i, t in ipairs(pages) do checkType('formatPageTables', i, t, 'table') local link = t[1] local display = t[2] links[i] = p._formatLink(link, display) end return links end

function p.makeWikitextError(msg, helpLink, addTrackingCategory) -- Formats an error message to be returned to wikitext. If -- addTrackingCategory is not false after being returned from -- Module:Yesno, and if we are not on a talk page, a tracking category -- is added. checkType('makeWikitextError', 1, msg, 'string') checkType('makeWikitextError', 2, helpLink, 'string', true) yesno = require('Module:Yesno') local title = mw.title.getCurrentTitle() -- Make the help link text. local helpText if helpLink then helpText = ' (help)' else helpText = end -- Make the category text. local category if not title.isTalkPage and yesno(addTrackingCategory) ~= false then category = 'Hatnote templates with errors' category = string.format( '%s:%s', mw.site.namespaces[14].name, category ) else category = end return string.format( '%s', msg, helpText, category ) end


-- Format link -- -- Makes a wikilink from the given link and display values. Links are escaped -- with colons if necessary, and links to sections are detected and displayed -- with " § " as a separator rather than the standard MediaWiki "#". Used in -- the template.


function p.formatLink(frame) local args = getArgs(frame) local link = args[1] local display = args[2] if not link then return p.makeWikitextError( 'no link specified', 'Template:Format hatnote link#Errors', args.category ) end return p._formatLink(link, display) end

function p._formatLink(link, display) -- Find whether we need to use the colon trick or not. We need to use the -- colon trick for categories and files, as otherwise category links -- categorise the page and file links display the file. checkType('_formatLink', 1, link, 'string') checkType('_formatLink', 2, display, 'string', true) link = removeInitialColon(link) local namespace = p.findNamespaceId(link, false) local colon if namespace == 6 or namespace == 14 then colon = ':' else colon = end -- Find whether a faux display value has been added with the | magic -- word. if not display then local prePipe, postPipe = link:match('^(.-)|(.*)$') link = prePipe or link display = postPipe end -- Find the display value. if not display then local page, section = link:match('^(.-)#(.*)$') if page then display = page .. ' § ' .. section end end -- Assemble the link. if display then return string.format('%s', colon, link, display) else return string.format('%s%s', colon, link) end end


-- Hatnote -- -- Produces standard hatnote text. Implements the template.


function p.hatnote(frame) local args = getArgs(frame) local s = args[1] local options = {} if not s then return p.makeWikitextError( 'no text specified', 'Template:Hatnote#Errors', args.category ) end options.extraclasses = args.extraclasses options.selfref = args.selfref return p._hatnote(s, options) end

function p._hatnote(s, options) checkType('_hatnote', 1, s, 'string') checkType('_hatnote', 2, options, 'table', true) local classes = {'hatnote'} local extraclasses = options.extraclasses local selfref = options.selfref if type(extraclasses) == 'string' then classes[#classes + 1] = extraclasses end if selfref then classes[#classes + 1] = 'selfref' end return string.format( '
%s
', table.concat(classes, ' '), s )

end

return p-------------------------------------------------------------------------------- -- Module:Hatnote -- -- -- -- This module produces hatnote links and links to related articles. It -- -- implements the and meta-templates and includes -- -- helper functions for other Lua hatnote modules. --


local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType local mArguments -- lazily initialise Module:Arguments local yesno -- lazily initialise Module:Yesno

local p = {}


-- Helper functions


local function getArgs(frame) -- Fetches the arguments from the parent frame. Whitespace is trimmed and -- blanks are removed. mArguments = require('Module:Arguments') return mArguments.getArgs(frame, {parentOnly = true}) end

local function removeInitialColon(s) -- Removes the initial colon from a string, if present. return s:match('^:?(.*)') end

function p.findNamespaceId(link, removeColon) -- Finds the namespace id (namespace number) of a link or a pagename. This -- function will not work if the link is enclosed in double brackets. Colons -- are trimmed from the start of the link by default. To skip colon -- trimming, set the removeColon parameter to true. checkType('findNamespaceId', 1, link, 'string') checkType('findNamespaceId', 2, removeColon, 'boolean', true) if removeColon ~= false then link = removeInitialColon(link) end local namespace = link:match('^(.-):') if namespace then local nsTable = mw.site.namespaces[namespace] if nsTable then return nsTable.id end end return 0 end

function p.formatPages(...) -- Formats a list of pages using formatLink and returns it as an array. Nil -- values are not allowed. local pages = {...} local ret = {} for i, page in ipairs(pages) do ret[i] = p._formatLink(page) end return ret end

function p.formatPageTables(...) -- Takes a list of page/display tables and returns it as a list of -- formatted links. Nil values are not allowed. local pages = {...} local links = {} for i, t in ipairs(pages) do checkType('formatPageTables', i, t, 'table') local link = t[1] local display = t[2] links[i] = p._formatLink(link, display) end return links end

function p.makeWikitextError(msg, helpLink, addTrackingCategory) -- Formats an error message to be returned to wikitext. If -- addTrackingCategory is not false after being returned from -- Module:Yesno, and if we are not on a talk page, a tracking category -- is added. checkType('makeWikitextError', 1, msg, 'string') checkType('makeWikitextError', 2, helpLink, 'string', true) yesno = require('Module:Yesno') local title = mw.title.getCurrentTitle() -- Make the help link text. local helpText if helpLink then helpText = ' (help)' else helpText = end -- Make the category text. local category if not title.isTalkPage and yesno(addTrackingCategory) ~= false then category = 'Hatnote templates with errors' category = string.format( '%s:%s', mw.site.namespaces[14].name, category ) else category = end return string.format( '%s', msg, helpText, category ) end


-- Format link -- -- Makes a wikilink from the given link and display values. Links are escaped -- with colons if necessary, and links to sections are detected and displayed -- with " § " as a separator rather than the standard MediaWiki "#". Used in -- the template.


function p.formatLink(frame) local args = getArgs(frame) local link = args[1] local display = args[2] if not link then return p.makeWikitextError( 'no link specified', 'Template:Format hatnote link#Errors', args.category ) end return p._formatLink(link, display) end

function p._formatLink(link, display) -- Find whether we need to use the colon trick or not. We need to use the -- colon trick for categories and files, as otherwise category links -- categorise the page and file links display the file. checkType('_formatLink', 1, link, 'string') checkType('_formatLink', 2, display, 'string', true) link = removeInitialColon(link) local namespace = p.findNamespaceId(link, false) local colon if namespace == 6 or namespace == 14 then colon = ':' else colon = end -- Find whether a faux display value has been added with the | magic -- word. if not display then local prePipe, postPipe = link:match('^(.-)|(.*)$') link = prePipe or link display = postPipe end -- Find the display value. if not display then local page, section = link:match('^(.-)#(.*)$') if page then display = page .. ' § ' .. section end end -- Assemble the link. if display then return string.format('%s', colon, link, display) else return string.format('%s%s', colon, link) end end


-- Hatnote -- -- Produces standard hatnote text. Implements the template.


function p.hatnote(frame) local args = getArgs(frame) local s = args[1] local options = {} if not s then return p.makeWikitextError( 'no text specified', 'Template:Hatnote#Errors', args.category ) end options.extraclasses = args.extraclasses options.selfref = args.selfref return p._hatnote(s, options) end

function p._hatnote(s, options) checkType('_hatnote', 1, s, 'string') checkType('_hatnote', 2, options, 'table', true) local classes = {'hatnote'} local extraclasses = options.extraclasses local selfref = options.selfref if type(extraclasses) == 'string' then classes[#classes + 1] = extraclasses end if selfref then classes[#classes + 1] = 'selfref' end return string.format( '
%s
', table.concat(classes, ' '), s )

end

return p
  • Common Names of Diseases, The American Phytopathological Society
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