Disease Abbreviation Key

HR	High Resistance: describes plant varieties that highly restrict the growth and development of the specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible varieties. Highly resistant varieties may, however, exhibit some symptoms or damage under heavy pest or pathogen pressure*
IR	Intermediate Resistance: describes plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damaged compared to highly resistant varieties. Intermediately resistant varieties will still show less severe symptoms or damaged than susceptible plant varieties when grown under similar environmental conditions and/or pest or pathogen pressure.*
T	Tolerance: the ability of a plant variety to endure abiotic stress without serious consequences for growth, appearance or yield. A tolerant plant will usually show fewer symptoms than sensitive plant varieties when grown under similar conditions of abiotic stress.*

Immunity	Plant varieties which are not subject to attack or infection by a specific pest/ pathogen are considered immune.**
Resistance (R)	Plant varieties that restrict the growth and development of the specific pest or pathogen under normal pest or pathogen attack pressure when compared to susceptible varieties. These plant varieties can exhibit some symptoms or damage under heavy pest or pathogen pressure. Plant varieties with Resistant (R) are not immune to the pest/ pathogen.**
Intermediate Resistance (IR)	Plant varieties that restrict the growth and development of the specified pest/pathogen, but may exhibit a greater range of symptoms or damage compared to resistant varieties. Intermediate resistant plant varieties will usually show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions. and/or pest/ pathogen pressure, but may have heavy damage under heavy pressure. Plant varieties with Intermediate Resistance (IR) are not immune to pest/ pathogen.**
Susceptible (S)	The inability of a plant variety to restrict the growth and development of a specified pest/pathogen. Plant varieties that are susceptible will show damage when infected and are more likely to have heavy damage under moderate levels of pest/pathogen pressure.**

BEAN

BCMV	Bean common mosaic caused by Bean common mosaic virus
BMV1	Bean Mosaic Virus (races noted)
BCMV 1 (US1)	Bean common mosaic caused by Bean common mosaic virus
CBMV	Common Bean Mosaic Virus
BCTV	Curly Top caused by Beet curly top virus
CTV	Curly Top Virus
BGYMV	Bean golden yellow mosaic caused by Bean golden yellow mosaic virus
Cl	Anthracnose caused by Collectotrichum lindemuthianum
Psp	Halo blight caused by Pseudomonas savastanoi pv. phaseolicola
Pss	Bacterial brown spot caused by Pseudomonas syringae pv. syringae
BBS	Bacterial Brown Spot
Ua	Rust caused by Uromyces appendiculatus
Xap	Common Blight caused by Xanthomonas axonopodis pv. phaseoli
NY15	NY15 Strain of BMV
NL8	NL* Strain of BMV
PM	Powdery Mildew
DM	Downy Mildew

CABBAGE

(T)	Tolerant
FY 1	Fusarium yellow race 1
Foc	Fusarium yellows caused by Fusarium oxysporum f.sp.conglutinans
BR	Black Rot
TB	Tipburn

CANTALOUPE & MELONS

Fom	Fusarium wilt caused by the specified races of Fusarium oxysporum f.sp. melonis
Fus	Fusarium Wilt (races noted)
F	Fusarium Wilt (races noted)
Sf	Powdery mildew caused by the specified races of Sphaerotheca fuliginea
PM	Powdery Mildew
Sf 1	Powdery mildew caused by Sphaerotheca fuliginea
S	Sulfur burn caused by the application of some sulfur-based pesticides
DM	Downy Mildew

CORN

su	Sugary
se	Sugary Enhanced
sh2	Supersweet
Bm	Southern corn leaf blight caused by Bipolaris maydis (=Helminthosporium maydis)
SLB	Southern Leaf Blight
Et	Northern corn leaf blight caused by Exserohilum turcicum (=Helminthosporium turcicum)
NCLB	Northern Corn Leaf Blight
NLB	Northern Leaf Blight
MDMV	Maize dwarf mosaic caused by Maize dwarf mosaic virus
MDM	Maize Dwarf Mosaic
Ps (Rp1-d,e,g,i)	Common rust caused by Puccinia sorghi controlled by Rp1-d,e,g, and i genes
CR	Common Rust
Ps	Common rust caused by Puccinia sorghi
Pst	Stewart’s wilt caused by Pantoea stewartii (=Erwinia stewartii)
SW	Stewart’s Wilt
Um	Common smut caused by Ustilago maydis
Smut	Smut

CUCUMBER

R	Resistant
(T)	Tolerant
CMV	Cucumber mosaic caused by Cucumber mosaic virus
Sf	Powdery mildew caused by Sphaerotheca fuliginea
PM	Powdery mildew
Co	Anthracnose caused by Colletotrichum orbiculare
AN	Anthracnose reaction to the races shown
Psl	Angular leaf spot caused by Pseudomonas syringae pv. lachrymans
ALS	Angular leaf spot
Ccu	Scab caused by Cladosporium cucumerinum
S	Scab
Scab	Cucumber Scab
DM	Downy mildew
SqMV	Squash mosaic virus
WMV-2	Watermelon mosaic virus 2

PEAS

PEPPERS

R	Resistant
CMV	Cucumber mosaic caused by Cucumber mosaic virus
Lt	Powdery Mildew caused by Leveillula taurica
Pc	Phytophthora root caused by Phytophthora capsici
Phy	Phytophthora
PHYTP	Phytophthora
PepMoV	Pepper mottle caused by Pepper mottle virus
PMMoV	Pepper mild mottle virus
PVY	Potato virus Y caused by Potato virus Y
PVY 0,1	Potato virus Y
S	Stip, a physiological disorder
TEV	Tobacco Etch caused by Tobacco etch virus
TMV	Mosaic caused by Tobacco mosaic virus
ToMV	Mosaic caused by Tomato mosaic virus
TSWV	Spotted wilt caused by Tomato spotted wilt virus
PepYMV	Pepper yellow mosaic caused by Pepper yellow mosaic virus
Xcv 1,2,3,5	Bacterial spot caused by Xanthomonas campestris pv. vesicatoria
BLS	Bacterial spot reaction to races shown

SQUASH

R	Resistant
CMV	Cucumber mosaic caused by Cucumber mosaic virus
Sf	Powdery mildew caused by Sphaerotheca fuliginea
PM	Powdery Mildew
SLCV	Squash leaf curl caused by Squash leaf curl virus
WMV	Watermelon mosaic caused by Watermelon mosaic virus
PRSV	Papaya ringspot caused by Papaya ringspot virus
ZYMV	Zucchini Yellow Mosaic caused by Zucchini Yellow Mosaic virus

TOMATO

R	Resistant
Fol	Fusarium wilt caused by the specified races of Fusarium oxysporum f.sp. lycopersici
Fol US 1,2,3	Fusarium wilt caused by Fusarium oxysporum f.sp. lycopersici
F	Fusarium wilt resistant
F1	Fusarium wilt race 1
F2	Fusarium wilt race 2
For	Fusarium crown root rot caused by Fusarium oxysporum f.sp. radicis-lycopersici
M	Root knot caused by Meloidogyne arenaria, M. incognita & M. javanica
Mi, Ma, Mj	Root knot caused by Meloidogyne arenaria, M. incognita & M. javanica
N	Some root knot nemetodes (Mi gene)
Pst	Bacterial speck caused by Pseudomonas syringae pv. tomato
Sk	Bacterial speck (Pseudomonas syringae pv. tomato race O)
Sp	Bacterial speck race 0
Ss	Gray leaf spot caused by Stemphylium solani
S	Tolerant to Stemphylium gray leaf spot
TMV	Common mosaic caused by Tobacco mosaic virus
ToMV	Common mosaic caused by Tomato mosaic virus
T	Tomato mosaic virus resistant
TSWV	Tomato spotted wilt caused by Tomato spotted wilt virus
Sw	Tomato spotted wilt virus; T- (strainds O & 1)
V	Verticillium wilt caused by the specified race of Verticillium albo-atrum, V. Dahliae
V1	Verticillium wilt caused by Verticillium dahliae
Aal	Alternaria stem canker caused by Alternaria alternata f. sp. lycopersici
A	Alternaria stem canker
ASC	Alternaria Stem Canker
Cf	Leaf mold (some Fulia fulva races)
C	Cladosporium
St	Stemphyllim

WATERMELON

R	Resistant
(T)	Tolerant
Co	Anthracnose caused by Colletotrichum orbiculare
AN 1	Anthracnose race 1
Anth	Anthracnose
Fon	Fusarium wilt caused by Fusarium oxysporum f.sp. niveum
Fus	Fusarium Wilt
FW 1	Fusarium wilt race 1

* Terminology defined by Rogers-Syngenta®

** Terminology defined by Harris Moran Seed Company®