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UC IPM

A healthy peach leaf (left) next to a leaf infected with peach yellow leafroll phytoplasma. The pathogen has caused chlorosis, an enlarged midvein, and marginal cupping. — A healthy peach leaf (left) next to a leaf infected with peach yellow leafroll phytoplasma. The pathogen has caused chlorosis, an enlarged midvein, and marginal cupping.
Credit: Jack Kelly Clark