Biology Reference
In-Depth Information
Phyllosticta ailanthi, VA; Cristulariella
pyramidalis, FL.
R OT , Butt. Daedalea unicolor, occasional.
R OT , Root. Armillaria mellea, Northeast;
Phymatotrichum omnivorum, TX.
R OT , Wound. Polyporus lacteus; P. versicolor,
occasional
Ophiodothis alnea, tar spot, NH,
PA; Phyllosticta alnea, AK;
Septogloeum variegatum, CA; Septoria
alni, AK, CA, NY, WA, WI, OR; Hypospila
californica, CA.
M ISTLETOE . Phoradendron serotinum
(flavescens), AZ, NM; P. villosum, CA;
Viscum album, CA; on Alnus rubra (Red
Alder).
M ISTLETOE , European. Viscum album, CA.
N EMATODE , Root Knot. Meloidogyne sp.
P OWDERY M ILDEW . Erysiphe aggregata,MEto
NJ, CA, MN, WA; Phyllactinia corylea,ME
to WI, AL, SC; Microsphaera
in living trees; Schizophyllum
commune.
W ILT . Verticillium albo-atrum, NY, PA, VA.
Ailanthus is well adapted to city smoke and
not often troubled by disease except for wilt,
which can be serious and has killed many trees
in the Philadelphia area.
alni,
widespread.
R OT , Heart. Daedalea unicolor; Fomes
igniarius; F. pinicola; Ganoderma
applanatum; Polyporus sulphureus.
R OT ,
Akee Tree (Blighia sapida)
W ILT ;D IEBACK . Verticillium dahliae, FL.
Root.
Armillaria mellea,
CA;
A.
nabsnona,
HI;
Phymatotrichum
omnivorum, TX.
R OT , Wood. Daedalea confragosa; Daldinia
occidentalis; Fomes scutellatus; Lenzites
saepiaria; L. trabea; Pholiota adiposa;
Pleurotus serotinus; Polyporus adustus;
P. hirsutus; P. versicolor; Schizophyllum
commune; Steccherinum ochraceum;
Stereum spp., mostly on dead wood.
R UST . Melamsoridium alni (II, III), CA, TX.
S OOTY M OLD . Scorias
Alder (Alnus)
B ACTERIAL
Leaf
Blight.
Xanthomonas
campestris, CA.
B LIGHT , Gray Mold. Botrytis cinerea,WA.
C ANKER , Brown Felt. Septobasidium filiforme,
NC; S. peckii, NY.
C ANKER ;D IEBACK . Nectria coccinea, NY, PA; N.
galligena,NH;Hymenochaete agglutinans,
MI, NY, PA; Melanconis alni, ME to NJ, WI;
Phomopsis alnea, KY; Physalospora obtusa,
SC, VA; Solenia ochracea, widespread on
bark; Didymosphaeria oregonensis, ID, OR,
WA; Valsa melanodiscus, western North
America.
C ANKER , Stem. Cytospora sp., OR.
D ODDER . Cuscuta compacta, MD, VA.
G ALL , Root. Cause unknown.
L EAF B LISTER , Catkin Hypertrophy. Taphrina
robinsoniana, widespread; T. japonica,
AK, CA, OR; T. occidentalis, CA, ID, MT,
OR, WA.
L EAF S POT . Cercospora alni, WI; Cercosporella
alni, AK, OR, WA; Dothidella alni, black
spot;
spongiosa,NYto
NC, WV.
Alfalfa (Medicago)
A NTHRACNOSE . Colletotrichum trifolli, OH.
L EAF S POT . Phoma medicaginis,WA.
R OT , Brown Root. Phoma sclerotioides, CO,
ME, NM, PA, Ontario, Canada.
V IRUS . Rhabdovirus, Argentina; Cucurbit Yel-
low Stunting Disorder, CA.
Allamanda
N EMATODE , Burrowing. Radopholus similis, FL.
N ONPARASITIC . Chlorosis, magnesium deficiency
in overlimed or acid soil, FL.
Gloeosporium
tubiformis;
Cylindrosporium
vermiforme,
WI;
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