Need help to ID leaf problem on Valencia Orange
9 years ago
In the past few days I've noticed some dark spots that have become transparent all the way through the leaf. I looked for bugs with a 10 power magnifier and found none. The tree is sprayed on a routine basis for pests, just last week. The tree is located in a controlled environment greenhouse and has supplemental LED grow lights set sunrise to sunset 365 days/yr.
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