The Tropical Fruit Forum

I have an Fuyo Jiro persimmon which has been in ground for 5 years. Suddenly, all the leaves are wilting and it seems to be dying. Can it be Persimmon Sudden Death Syndrome (SDS)?  I don't see the black veins typically described in SDS.

It had a few Matsumoto wase grafts from last year on it and couple of them died few weeks ago and I had cut them off. Tree is irrigated thru a drip system and typically gets 2 gallons once a week. It was watered couple days ago.  I have hard clay soil. 

Tree was bought from Home Depot and was grown by Durling Nursery and likely is on Diospyros lotus rootstock. 

Any thoughts are appreciated!

I grafted Sweet Tart, Venus and Cac on to Manila seeding on 5/10/22 - all cleft grafts. Cac never had any growth but is still green.  Sweet tart and Venus took and developed new leafs.  However, growth has stalled and now leafs are turning yellow. All the graft unions are well healed with good amount of callous formation.  I removed the tape around graft union thinking that it may be strangulating the graft union. I have been removing any new growth on the root stock below graft to ensure all the energy is going to grafts.

What do the experts feel the problem is? Is it some type of nutritional deficiency?  Any thing I can do to help them grow?

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I ordered Ponkan Mandarin and Xie Shan Satsuma scions to topwork may orange tree. Xie Shan Satsuma scions look decent but some of the Ponkan scions are small - almost like twigs.  Any ideas how to best graft the smaller scions?

I have an in-ground multi-grafted mandarin tree with Algerian Freemont, Page, Kishu and Dancy tangerine grafts. To my surprise, Page and Kishu have been very bland for me.  Hence, I am thinking about cutting the page and Kishu grafts and bark-grafting with Xie Shan, Shiranui and Kinnow mandarin.

I was planning to wait untill march before grafting them but I am already seeing new growth on the tree. What I have noticed is that most of the growth occurs from February to June on my orange trees ( I am in coastal Orange County, Zone 10a, about 10 miles from the coast). Once the temperature reaches 80s, Citrus Leaf Miner (CLM) kicks in and the new growth gets stunted. If I am to graft now, it will give several months of new growth before CLM starts affecting them.

So, I am wondering if I should go ahead and graft them now or wait till March?

Thank your or your responses.

I have recently planted couple mango trees in the ground and was wondering what would be that best way to water them?

I have a drip system in place which uses netafim 1/2" dripline with pressure regulated emitters every 12 inches.  For most of the trees, I make a circle of dripline around the base of the tree.  However, for smaller tree/plants it is difficult to make the circle without kinking the drip line.   

I use Rain Bird Micro-Bubblers in my potted plants but the problem is their twist cap tends to becomes either loose or too tight overtime making water flow inconsistent. I have also used spot spitters but they keep popping out of the 1/8" tubing especially when the weather is hot.

Looking at the pictures posted in the forum, it seems that many people use micro-sprinklers. Can people who use micro-sprinklers provide information about which one they use and how well do they work for them.

Thank you