Garlic

Pest Management

Do you have Allium Leafminer?

Allium leafminer (ALM) was first detected in leek crops in Orleans, Genesee, and Niagara Counties in New York in 2023. We are now assuming that ALM occurs throughout the 14-county Cornell Vegetable Program region. Here is what Allium growers need to know.

Allium Leafminer is Here to Stay

Close-up of 8-inch section of leaf tip of a garlic leaf that has about 2-dozen half-centimeter whitish spots in a vertical line along the leaf edge.

50 lb/A Nitrogen is Enough

In 100% of eight side-by-side comparisons, there were no differences in yield among 50 lb/A, 100 lb/A and 150 lb/A of spring-applied inorganic nitrogen in German hard neck garlic.

Nitrogen Requirements in Garlic: 50 lb/A is Enough

Two freshly pulled garlic plants with their bulbs side by side.

Contact Us

Christy Hoepting

Extension Vegetable Specialist – onions, cabbage, broccoli, garlic, pesticide management

(585) 721-6953

cah59 [at] cornell.edu (cah59[at]cornell[dot]edu)

Robert Hadad

Extension Vegetable Specialist – farm food safety, fresh market vegetables (eastern region), organic, business & marketing

(585) 739-4065

rgh26 [at] cornell.edu (rgh26[at]cornell[dot]edu)