Replication data for: Pest intensity-crop loss relationships for the leafminer fly Liriomyza huidobrensis (Blanchard) in different potato (Solanum tuberosum L.)

Crop management (irrigation, fertilization, etc.) followed traditional methods commonly employed in the region. Potato varieties varied over the years in the present study. The Canchan variety was planted in 2005 as it is the most common variety in the Cañete valley and is considered highly susceptible to L. huidobrensis.

In 2007, three new varieties were included with different maturation times: Revolucion (early, susceptible), Tomasa (middle-late, tolerant) and Capiro (late, unknown susceptibility). In 2008, another early variety, Desiree, was included as well as Maria Tambeña, as a L. huidobrensis resistant variety. Capiro was replaced by Yungay because of the availability of seed.

Duration of the phenological stages of the potato varieties used was standardized using the BBCH-scale (Biologische Bundesanstalt, Bundessortenamt and Chemical Industry) established for this crop, where the main growth stages (GS) are described using numbers from GS0 to GS90 in ascending order.