Grapefruit tree yellowing leaves... any ideas?

[PaulZone8b]

We bought several citrus trees from a local citrus farmer an hour away and everything else is doing pretty well...just this Bloomsweet Grapefruit has gone completely light yellow leaves. I installed it in the ground last year and it did fine. I have given it CitrusTone, my own compost, and do the same thing as all the other plants, trees but something is not happy. I stuck a pH meter in and see its 7.5 ish...so maybe its too high. I am attaching photo so others can share ideas.

I was told to add some nitrogen (I have bloodmeal) and a little Epsom salt around the base, so I did today before the rain. We will see.

 

[Chuck]

We bought several citrus trees from a local citrus farmer an hour away and everything else is doing pretty well...just this Bloomsweet Grapefruit has gone completely light yellow leaves. I installed it in the ground last year and it did fine. I have given it CitrusTone, my own compost, and do the same thing as all the other plants, trees but something is not happy. I stuck a pH meter in and see its 7.5 ish...so maybe its too high. I am attaching photo so others can share ideas.

I was told to add some nitrogen (I have bloodmeal) and a little Epsom salt around the base, so I did today before the rain. We will see.

Probably low nitrogen. Can you send pic of leaf closeup?

 

[PaulZone8b]

Added a closeup for you Chuck.
So Bloodmeal can fix the low Nitrogen right ?

 

[Chuck]

Added a closeup for you Chuck.
So Bloodmeal can fix the low Nitrogen right ?

It appears to me to be a root dysfunction plus low nitrogen. Has there been any major temperature changes like extreme heat. Has there been any major water changes like the plant being saturated for a period of time. Normally when a citrus has a severe lack of nitrogen there is still some green in the leaf. None of the leaves on the entire plant are showing any green. I know that at least part of the problem is low nitrogen but as to the rest it is just a guess. If it were my tree I would get some SuperThrive and use as directed. And just to make sure I would also give it micro-nutrients such as Liquid Iron. Bloodmeal is an excellent source of nitrogen, IIRC it is 12-0-0 so don't overdo it. Wish I could be more help