California, U.S.A.
Lettuce being sprayed for mildew by helicopter in the Salinas Valley, one of the most productive areas in the U.S. for vegetables. The red and green striped crops are leaf lettuce "spring mix" for consumption throughout the U.S. and Canada. Here, a pilot spreads different amounts of insecticide and fungicide to treat plants at different stages of their growth. This is the end of the harvest season when the plants are particularly prone to pests.
