Leaf spots are a common issue that affects spinach and reduces its salability. Spots on spinach leaves are caused by both biotic and abiotic influences. Insects, such as leafminers, frequently cause spots on spinach leaves.
There are sex pheromone traps for Diamondback moth set up across the Salinas Valley. This pheromone only attracts males of this pest. These traps were first put out on February 20th, 2019.