$100 The inoculum that initiates a disease cycle.

PRIMARY INOCULUM

$200 The sexual spore of an Ascomycete.

ASCOSPORE

$300 A pathogen that only completes one disease cycle during a growing season.

MONOCYCLIC

$400 Cell division or asexual reproduction in bacteria.

BINARY FISSION

$500 Reduction division from one diploid to (usually) four haploid nuclei.

MEOISIS

$100 He discovered Bordeaux mixture.

PIERRE MARIE ALEXIS MILLARDET

$200 He studied inheritance of dominant and recessive traits in peas.

GREGOR MENDEL

$300 He was the first to propose that bacteria could cause plant diseases.

THOMAS BURRILL

$400 He devised a set of steps to prove pathogenicity.

ROBERT KOCH

$500 He invented the bacterial mutagenesis test for carcinogenicity.

BRUCE AMES

$100 Phytophthora infestans.

LATE BLIGHT OF POTATO

$200 Southern corn leaf blight.

HELMINTHOSPORIUM MAYDIS

$300 Hemilea vastatrix.

COFFEE RUST

$400 Caused the Bengal Famine.

HELMINTHOSPORIUM ORYZAE

$500 Erwinia stewartii.

STEWART'S WILT IN CORN

$100 Pathogen, host, environment.

PLANT DISEASE TRIANGLE

$200 The increase of a disease in a population with time.

EPIDEMIC

$300 Extended monsoon rains.

ENVIRONMENT THAT LED TO THE BENGAL FAMINE

$400 Conferred susceptibility to Southern corn leaf blight.

TEXAS MALE STERILE CYTOPLASM

$500 Combination of strategies to reduce losses to pests and pathogens.

INTEGRATED PEST MANAGEMENT

$100 DNA

DEOXYRIBONUCLEIC ACID

$200 EPA

ENVIRONMENTAL PROTECTION AGENCY

$300 SALB

SOUTH AMERICAN LEAF BLIGHT (OF RUBBER)

$400 sp.

SPECIES

$500 DDT

DICHLORODIPHENYLTRICHLOROETHANE

$100 A chemical that kills fungi.

FUNGICIDE

$200 The method used to control Southern corn leaf blight.

RESISTANCE

$300 A pesticide that stays on the surface of a plant.

PROTECTANT

$400 Method used several times to control citrus canker in Florida.

ERADICATION

$500 The law that changed the zero tolerance for carcinogens in food.

FOOD QUALITY PROTECTION ACT

Updated: July 7, 2001