The Sheldon Lab, Cornell University
The diamondback moth (DBM) (Plutella xylostella) is the world’s worst insect pest of brassica crops (cabbages, canola, broccoli, cauliflower, kale, etc.) – costing farmers $4-5 billion annually worldwide. The moths are small, about the length of two grains of rice, but females can lay upwards of 150 eggs during their lifetime and a generation can be produced in as little as two weeks. This invasive pest probably originated in Europe, but is now found throughout the world, including New York State and other states that farm brassica vegetables.