Summary: Entomologists found that potato leafhoppers, which are migratory pests, arrived in the fields an average of 10 days earlier in 2012 than they did in the early 1950s.
Summary: Entomologists found that potato leafhoppers, which are migratory pests, arrived in the fields an average of 10 days earlier in 2012 than they did in the early 1950s.