It could be overwatering or nitrogen deficeincy. Young plants need more nitrogen than mature plants. You can get more information from your local agricultural extension office.

Citrus need regular fertilizer with high nitrogen and minors. In your area you should have no trouble finding Citrus labeled fertilizer. I am using Lilly Miller, Citrus and Avocado food every 3 months for in the ground citrus and once a month for containers. Citrus in the ground need very little water this time of year, at least in my climate. Al

Thanks - Will cut watering (although we seem to be having a La Nina season and have no rain), and apply fertilizer with minors again.