#1 I am . . .
#2 I am . . .
#3 I am . . .
Cronartium ribicola
Phytophthora ramorum
Cryphonectria parasitica
White pine blister rust
Sudden oak death and
ramorum blight
Chestnut blight
- I’m kinda picky! I require
2 hosts - white pines (why I
like hiking in the woods)
and Ribes (currants and
gooseberries) – to complete
my life cycle.
- Windy kite-flying weather
helps me spread my
aeciospores.
Photo: Joseph O'Brien, USDA
Forest Service, Bugwood.org
Basidiomycota
- I am an oomycete. I like
“hiking” in the woods of
northern California and
Oregon.
- I like flying kites (spores
are spread by wind and rain)
- I'm not a picky eater (host
range includes > 100
species of trees shrubs and
ornamentals)
Image: APSnet
Oomycota
I’m a fungus, and American
chestnut is my favorite host
(I’m kinda picky) – and I’ve
done a good job of wiping
out chestnut trees in North
America. I do like the rain –
rain and wind help to
spread my spores.
Photo: Joseph O'Brien, USDA Forest Service, Bugwood.org
Ascomycota
#5 I am . . .
#6 I am . . .
Phytophthora
cinnamomi
Boletus edulis
Armillaria mellea
Phytophthora root rot
Bolete, porcini, king bolete
mushroom, penny cap
Armillaria root disease,
shoestring root rot
I like hiking in the woods. I’ll
infect over 100 hosts,
including azalea,
rhododendron, camellia,
boxwood, eucalyptus,
avocado, pine, juniper,
hemlock, spruce, fir, cedar,
and cypress (not picky).
I am a basidiomycete
fungus. I like hiking in the
woods, where I’m usually
found in an ectomycorrhizal
association with pines. I am
an edible mushroom, quite
popular in many recipes. I
can grow to be quite large!
I am a soil-borne fungus that
infects a wide host range of
trees, vines and woody
species. I cause a white rot
of wood and I produce
“honey mushrooms” at the
base of trees.
I like the rain – it creates the
wet soils that
I love.
APS Image Resources
Oomycota
Photo: Wikipedia
#4 I am . . .
Photo: Linda Haugen, USDA Forest Service, Bugwood.org
Basidiomycota
Basidiomycota
#7 I am . . .
#8 I am . . .
#9 I am . . .
Mycosphaerella
fijiensis
Lasiodiplodia
theobromae
Hemileia vastatrix
Black sigatoka of banana,
black leaf streak
Rot and Dieback
I’m a fungus, and I’m partial to
the tropics. A nice wet, windy
day will help me spread my
spores.
I’m pretty picky – banana is
my fav food - especially
Cavendish, the world’s major
commercial variety.
Photo: Gerald
Holmes, Cal Poly
SLO, Bugwood.org
Ascomycota
I love the tropics, but I'm not
a picky eater - I cause
rotting and dieback in
grapes, citrus, and about
500 host plants. I’ve even
been known to infect a
human toenail or two!
Photo: Gerald Holmes, Cal Poly SLO, bugwood.org
Ascomycota
Coffee rust
I’m found in the tropics, or
wherever coffee is grown.
You could say I'm a picky
eater - I literally live on
coffee.
Photo: APS Education Canter – Plant Disease Lesson
– Coffee rust
Basidiomycota
#10 I am . . .
#11 I am . . .
#12 I am . . .
Ralstonia
solanacearum
Heterodera spp.
Meloidogyne spp.
Cyst nematode
Root knot nematode
I am a plant parasitic nematode
(simple roundworm). The
different Heterodera species
each tend to feed on and infect
the roots of specific plants
(digging in the dirt) – e.g.,
soybean cyst nematode and
soybean, potato cyst nematode
and potato.
I am a plant parasitic
nematode, and I must admit
I cause a lot of damage to
agricultural crops worldwide. I like digging in the
dirt . . . I've been known to
feed on the roots nearly
2000 different plants
(definitely not picky!)
Brown rot of potato, bacterial
wilt of solanaceous plants &
some ornamentals,
Moko disease of banana
I am a bacterial pathogen and I
can infect hundreds of plant
species (I’m not picky)! I can
be found in tropical, sub-tropical
& some temperate regions.
Meloidogyne
incognita
Photo: Plant Protection Service, Bugwood.org
Photo: Soybean cyst nematode and egg (USDA ARS)
Photo: USDA ARS
#13 I am . . .
#14 I am . . .
#15 I am . . .
Guignardia bidwellii
Alternaria alternata
Magnaporthe oryzae
Black rot of grape
Spots, rots and blights
Rice blast
My name describes me
well. I’m an important
fungal disease of grapes,
and there’s nothing like a
wet, windy day to help me
spread my spores.
Photo: Clemson University - USDA Cooperative Extension
Slide Series, Bugwood.org
Ascomycota
I’m a fungus that can infect
hundreds of plants, including
citrus and papaya. I’m also
associated with lung infections
and mold allergies (I’m not
picky!) I can be found in the
air and my spores are spread
in kite-flying weather.
I’m one of the most
important and devastating
diseases worldwide. I am a
fungus that infects rice
(pretty picky eater). I thrive
under warm, wet and humid
conditions.
Photo: Wikipedia
Ascomycota
Photo: USDA ARS
Ascomycota
#16 I am . . .
#17 I am . . .
#18 I am . . .
Botrytis cinerea
Phytophthora
infestans
Agrobacterium
tumefaciens
Late blight of potato and
tomato
Crown gall
Gray mold or Botrytis bunch
rot
I am a fungus that infects many
plants – grapes, geraniums,
strawberries, tomatoes, onions,
garlic and more (I’m not picky).
Wet, humid conditions help me
thrive. Under certain
conditions, I can infect grapes to
produce a sweet, Botrytized
wine (Noble rot).
Photo: University
of
Georgia Plant
Pathology Archive,
Bugwood.org
Ascomycota
I am the pathogen
associated with the Irish
potato famine. If you like
digging in the dirt, you may
find me infecting my favorite
food, potato tubers (I’m
kinda picky).
Photo: University
of
Georgia Plant
Pathology Archive,
Bugwood.org
Oomycota
I am a bacterial pathogen,
commonly found in the soil
(digging in the dirt), where I
infect the roots of grapes,
many fruit and nut trees and
dozens of other plant species
(not a picky eater!)
I am nature’s
genetic
engineer, and I
can also be
quite useful in
the lab!
Photo: Wikipedia
#19 I am . . .
#20 I am . . .
#21 I am . . .
Maize lethal
necrosis
Candidatus
Phytoplasma asteris
Pantoea stewartii
Aster yellows
(Erwinia stewartii)
Stewart’s wilt of corn
I like to work as part of a team:
maize lethal necrosis is a
complex of the Maize
Chlorotic Mottle Virus, and
potyviruses infecting cereals. I
am vectored by insects such
as thrips.
I infect mainly corn
(aboveground plant parts) and
I’m causing devastating farm
losses in
West Africa.
Photo: FAO
I am a phytoplasma associated
with hundreds of species,
many in the Aster family but
also crops such as wheat and
barley (I’m not picky).
I am vectored by leafhoppers
(we work as part of a team). I
usually infect above ground
plant parts (I like fresh air).
Photo: Aster yellows symptoms on immature onion.
Lindsay du Toit, Washington State Univ., Bugwood.org
I am a bacterial pathogen I
I’m vectored by the corn flea
beetle (we work as part of a
team).
I’m kind of picky; I especially
like sweet corn!
Photo: Felix Francis, University of Delaware,
Bugwood.org
#22 I am . . .
#23 I am . . .
#24 I am . . .
Tomato spotted wilt
virus (TSWV)
Sudden Death
Syndrome of Soybean
Xiphinema americanum
I infect over 1000 species,
including many vegetables,
peanut and tobacco (I’m not
a picky eater). I am
vectored by thrips (we work
as a team).
I am a soil-borne disease of
soybean. I do my most
destructive work as part of a
team: Fusarium virguliforme
(fungus) and Heterodera
glycines (soybean cyst
nematode) interact to cause
severe damage.
Dagger nematode
I am one of the most important
plant parasitic nematodes in
agriculture. I’m found in the
soil and I’ll eat corn and
soybean, virtually all fruits,
conifers, grasses, ornamentals
and more (not a picky eater).
I like to work as
part of a team:
I’m a vector of
Tomato ringspot
virus and other
viruses.
TSWV symptoms on tomato. Photo: William M.
Brown Jr., Bugwood.org
Photo: Daren Mueller, Iowa State University, Bugwood.org
Photo: Horacio Lopez Nicora
#25 I am . . .
#26 I am . . .
#27 I am . . .
Puccinia graminis
Raffaelea lauricola
Sclerotinia
homoeocarpa
Stem rust
I am a fungal disease of wheat
and barley. Throughout
history, I have been a threat to
the world supply of wheat,
although farmers now grow
disease-resistant varieties.
Wheat and an alternate host,
barberry, help me complete my
complex life cycle (but I can
survive on wheat alone). My
windborne spores like to travel
the world.
Photo: USDA ARS
Basidiomycota
Laurel wilt
Laurel wilt is a fungus disease
of the laurel family – redbay,
sassafras etc., but avocados
may be my most well-known
host. I am spread by the
redbay ambrosia beetle (we
work as a team).
I am thought to
be native to
Asia, now I’m
also in the
southeast US
(world traveler)
Photo: Laurel wilt on redbay,
Ronald F. Billings, Texas
Forest Service, Bugwood.org
Ascomycota
Dollar spot of turfgrass
I’m kind of picky (I’m mainly a
turfgrass disease). I love the
scent of rain (wetness and
moisture help me thrive!)
I like to work as part of a team
- it’s my love of sports! I can
be found on golf courses and
athletic fields in many parts of
the world.
Photo: Barb
Corwin, Turfgrass
Diagnostics,
Bugwood.org
Ascomycota
#28 I am . . .
#29 I am . . .
#30 I am . . .
Xylella fastidiosa
Fusarium oxysporum
Rhizoctonia solani
Fusarium wilt
Rhizoctonia damping-off,
blight and rot
I am a bacterial pathogen and
I’m creating news headlines
around the world: Olive Quick
Decline Syndrome in Italy,
Pierce’s disease in grapes,
Citrus variegated chlorisis in
Brazil, phoney peach disease
in the U.S. and bacterial leaf
scorches in many trees. I am
spread by leafhoppers (we
work as a team).
I am found in soils worldwide,
often part of a root rot complex
and/or assoc. with nematodes
(team player). Although I’m
diverse, formae speciales
(based on host plant) generally
have a limited host range, e.g.F. oxysporum f. sp. lycopersici
causes vascular wilt in tomato.
I am a soil-borne fungus found
around the world. I’m not a
picky eater (I have a broad
host range – turfgrass,
potatoes, cereals, sugarbeet,
cucumber, rice). I like to work
as part of a team (R. solani is
common in root rot
complexes).
Symptoms on
tomato
Photo: scorch symtptom, John Hartman, Univ of
Kentucky, Bugwood.org
Photo: Clemson University - USDA Cooperative
Extension Slide Series, Bugwood.org
Ascomycota
Photo: Clemson
University - USDA
Cooperative
Extension Slide
Series,
Bugwood.org
Basidiomycota