Most all fertilizers have warning notices, I would not concern myself. I can only speak for myself, but I would not use a 24-14-14 as my regular fertilizer on CONTAINERIZED citrus. Citrus take up fertilizer nutrients from the growing medium in the ratio of 5-1-3. The 24-14-14 is very high phosphorous content. For a tree growing outdoors in the ground it would probably not be a big deal, as many citrus groves use a 1-1-1 ratio. - Millet