Host Plants - Westcott's Plant Disease - page 445

B LIGHT , Phytophthora. Phytophthora capsici.CT,
IL, NY; Choanephora cucurbitarum,FL.
B LIGHT , Pod. Diaporthe phaseolorum, CT to FL,
LA, OH, OK, on limabean.
B LIGHT , Southern. Sclerotium rolfsii, VA to FL,
AR, CA, TX.
D AMPING -O FF . Pythium ultimum;
P. debaryanum; Rhizoctonia solani.
D OWNY M ILDEW . Phytophthora phaseoli,on
lima bean, East, central states; P. capsici,
DE, MD, NJ, VA.
L EAF A ND P OD S POT . Ascochyta boltshauseri,
NC, OR, PA; A. phaseolorum, WA;
Bipolaris sorokinearia, WI.
L EAF A ND S TEM D ISEASE . Cercospora zebrina
(clover isolate), NC.
L EAF S POT . Alternaria spp.; Aristastoma
oeconomicum, GA, VA; Cercospora
canescens, southeastern states to NY;
Epicoccum sp., secondary on lima bean;
Isariopsis griseola, Angular Leaf Spot, ME
to FL, OK, TX; I. laxa, IN, NJ;
Mycosphaerella cruenta, NJ to FL, AR,
TX, WI; Phyllosticta phaseolina, NY to FL,
IN,

Variegation. Genetic leaf abnormality.
Wind Whip.
P OD S POT , Seed Mold. Cladosporium
herbarum, on lima bean, CA, FL.
P OD S POT , Yeast Spot. Nematospora phaseoli,on
lima bean; Pullularia pullulans, NY.
P OWDERY M ILDEW . Erysiphe polygoni, East,
South, CA: Microsphaera diffusa, GA, IL,
MD; M. euphorbiae, IL.
R OT , Black Root. Thielaviopsis basicola, AL,
CA, NH, NJ, NY.
R OT , Brown Stem. Cephalosporium gregatum,
IL.
R OT , Root. Fusarium solani f. sp. phaseoli, gen-
eral; F. acuminatum, F. reddens, MN, ND;
Phoma terrestris, secondary, CA;
Phymatotrichum omnivorum, AZ, OK;
Pythium aristorum, WI; P. catenulatum,
WI; P. dissotocum, WI; Pythium spp., wide-
spread; Aphanomyces eutiches,NY.
R OT , Root and Stem; Web Blight. Pellicularia
filamentosa, general.
R OT , Soft. Rhizopus stolonifer and Pythium
aphanidermatum, leak, of market beans.
R OT , Stem; Wilt. Sclerotinia sclerotiorum, gen-
eral, especially in South and West; S. minor;
S. ricini; S. intermedia, in market beans.
Pythium myriotylum,

TX; Stemphylium botryosum;

Stagonospora phaseoli, TN.
L EAF S POT , White. Pseudocercosporella albida,
MN.
L EAF S POT , Zonate. Cristulariella pyramidalis,
WV.
N EMATODE , Awl. Dolichodorus heterocephalus.
N EMATODE , Hop Cyst. Heterodera humuli, OR;
H. glycines, soybean cyst, IL.
N EMATODE , Root Knot. Meloidogyne arenaria;
M. hapla; M. incognita; M. javanica; Root
Lesion, Pratylenchus pratensis.
N EMATODE , Stubby Root. Trichodorus christiei.
N EMATODE , Stunt. Tylenchorhynchus claytoni.
N ONPARASITIC . Baldhead. Mechanical injury to
seed growing point.
Blossom Drop. High temperature, low humidity.
Bronze Leaf. Excessive salt concentration, CO,
MT, WY.
Chlorosis. Deficiency of: Copper, FL; Magne-
sium, FL, MA, SC, VA; Manganese, FL;
Zinc, CA, FL. Soil alkalinity, West.
Ozone Injury. Air pollution.
Seed Pitting. Plant bug injury.

FL, GA, SC;

Marasmius spp., NE.
R USSET . Plectosporium tabacinum, MD, NY.
R UST . Uromyces phaseoli var. typica, II, III,
general; 0, I, rare; U. appendiculatus var.
appendiculatus ( ¼ U. phaseoli), CO, NE;
Phakopsora pachyrhizi, FL.
S TEM N ECROSIS , Decline. Phytophthora capsici,
MI.
S POT

A NTHRACNOSE ; Lima Bean Scab.

Sphaceloma phaseoli, NC.
V IRUS . Alfalfa Mosaic,WA;Bean Common
Mosaic, ID, NY, WA; Bean Common
Mosaic Necrosis, CA; Bean Mosaic, general;
Southern Bean Mosaic, CA, CO, LA, MD,
MI; Bean Pod Mottle; Bean Phyllody; Bean
Red Node; CO, ID, MS, WY; Bean Yellow
Mosaic, ND; Bean Yellow Stipple, IL; Bean
Yellow Dot ¼ Alfalfa Mosaic, WA; Beet
Curly Top, West; Cucumber Mosaic;
Tobacco Necrosis; Tobacco Ring Spot;