HPIPM:Onion Disease Forecasting

Taxonomy

Domain	Viruses
Realm	Riboviria
Kingdom	Orthornavirae
Phylum	Negarnaviricota
Subphylum	Polyploviricotina
Class	Bunyaviricetes
Order	Elliovirales
Family	Tospoviridae
Genus	Orthotospovirus

Scientific Name

Orthotospovirus iridimaculaflavi

Scientific Name Synonyms

Tospovirus Iris yellow spot virus

Tospovirus iridimaculaflavi

Common Name

iris yellow spot virus (IYSV)

Taxonomy

Domain	Eukarya
Kingdom	Plantae
Phylum	Magnoliophyta
Class	Magnoliopsida
Superorder	Lilianae
Order	Asparagales
Family	Amaryllidaceae
Genus	Allium

Scientific Name

Allium cepa

Common Name

garden onion

Taxonomy

Domain	Eukarya
Kingdom	Plantae
Phylum	Magnoliophyta
Class	Magnoliopsida
Superorder	Lilianae
Order	Asparagales
Family	Amaryllidaceae
Genus	Allium

Scientific Name

Allium cepa

Common Name

garden onion

Author: Howard F. Schwartz and Michael E. Bartolo

Early detection of pest problems is a key element of an integrated pest management program. The onset and spread of diseases, insects, and weeds are closely linked to weather patterns. By closely monitoring weather information and forecasts, a pest problem may be predicted and dealt with in a timely and efficient manner. Rather than spraying on a weekly or monthly basis (regardless of the pest pressure), applications should be made only when there is an actual problem and when it is economically and biologically feasible to do so.

In Colorado—Automated electronic weather stations are located in the major onion production areas in the state and are part of the larger Colorado Agricultural Meteorological Network (COAGMET). The weather stations are equipped with sensors to measure a variety of parameters including air and soil temperature, humidity (vapor pressure deficit), rainfall, and solar radiation. The stations also contain a cellular telephone and modem that enable weather data to be transferred to the main computer network at Colorado State University in Fort Collins. These weather stations are an important part of the Integrated Pest Management program and its application to the needs of onion growers.

Due to constantly changing labels, laws and regulations, the sponsors of this web site assume no liability for the suggested use of any chemicals noted in the management section. Contact your local pest management personnel for current information on labeled pesticides that can be used for the intended plant disease, insect pest or weed.