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redster Citruholic
Joined: 27 Mar 2008 Posts: 92 Location: new orleans, louisiana
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Posted: Fri 20 Apr, 2012 6:52 pm |
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i know we all deal with fruit drop, but what would cause a 5 year old grapefruit to drop well over 125 marble size fruit. last year it made about 100 fruit, this year looked like at least 200 before this massive drop. it only dropped maybe 20 last year, its otherwise healthy, fruit were great.
no it wasnt the weather, yes its fertilized, and the only thing that im unsure about is that i left mature 15 fruit on it to see how long they last, in yalls experience, would that take that much nutrients from the developing fruit?
and a sidenote, does anybody keep records on their trees,that has a spreadsheet or something i can copy. i dont know what records i should even be keeping other than mature fruit... |
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Laaz Site Owner
Joined: 12 Nov 2005 Posts: 5642 Location: Dorchester County, South Carolina
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Posted: Fri 20 Apr, 2012 7:26 pm |
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That's normal, you will also have some larger fruit drop in Jun / Jul. All four of mine just did the same. I will still have way more fruit than I can use... _________________ Wal-Mart a great place to buy cheap plastic crap ! http://walmartwatch.com/ ...
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Millet Citruholic
Joined: 13 Nov 2005 Posts: 6657 Location: Colorado
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Posted: Fri 20 Apr, 2012 10:25 pm |
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Fruit drop is very normal at this time of year. A grapefruit tree will keep between 1 -3 percent of the small fruitlets through to maturity. Millet (275 BO-) |
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redster Citruholic
Joined: 27 Mar 2008 Posts: 92 Location: new orleans, louisiana
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Posted: Sat 21 Apr, 2012 1:30 am |
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i know ive read they drop a lot, just this is the first time fruit this large and so many drop at once on any of my trees... so my holding fruit on the tree shouldnt bother it too much? maybe just fruit size later on? |
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Millet Citruholic
Joined: 13 Nov 2005 Posts: 6657 Location: Colorado
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Posted: Sat 21 Apr, 2012 1:34 am |
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Holding fruit on a tree does result in little to no new fruit production, but only on the branches that last years fruit were left attached. - Millet (275 BO-) |
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Darkman Citruholic
Joined: 20 Jul 2010 Posts: 966 Location: Pensacola Florida South of I-10 Zone 8b/9a
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Posted: Sat 21 Apr, 2012 2:17 am |
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My tree is much older, about 16 years old, and I have three to four periods of fruit drop like Millet said. I am still picking and eating last years crop while my tree is culling the lttle ones from this years blooms. The ones I am picking now are very sweet (for a grapefruit) and do not have any bitterness to them. They are a pink seedless variety. _________________ Charles in Pensacola
Life - Some assembly required, As is no warranty, Batteries not included, Instructions shipped separately and are frequently wrong!
Kentucky Bourbon - It may not solve the problem but it helps to make it tolerable! |
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redster Citruholic
Joined: 27 Mar 2008 Posts: 92 Location: new orleans, louisiana
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Posted: Sat 21 Apr, 2012 3:01 pm |
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Darkman my grapefruit seemed to do the same thing. They lost a good bit of tartness. Guess that's something ruby reds do. Hopefully i don't lose to many more fruit, id like to make more than last year. _________________ owari satsuma
ruby red grapefruit
sunburst tangerine
meyer lemon
ponkan mandarin
st ann satsuma
gold nugget mandarin
sour kumquat(potted)
21 pineapples |
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igor.fogarasi Moderator
Joined: 11 Apr 2011 Posts: 553 Location: Novi Sad, Serbia
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Posted: Sun 22 Apr, 2012 2:23 pm |
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Millet wrote: | Holding fruit on a tree does result in little to no new fruit production, but only on the branches that last years fruit were left attached. - Millet (275 BO-) |
Does it applies for fortunella varieties? As they have somewhat different growth pattern than common citrus. |
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ivica Moderator
Joined: 08 Jan 2007 Posts: 658 Location: Sisak, Croatia, zone 7b
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Posted: Sun 22 Apr, 2012 4:19 pm |
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igor.fogarasi wrote: | Millet wrote: | Holding fruit on a tree does result in little to no new fruit production, but only on the branches that last years fruit were left attached. - Millet (275 BO-) |
Does it applies for fortunella varieties? As they have somewhat different growth pattern than common citrus. |
Igor,
Malcolm_Manners in his post Tue Jul 05, 2011 4:29 pm at
link
gives information about the role of cytokinin (flush inhibitor) and auxin (flush stimulator). That could partially answer your question, notice the role of calyx. _________________
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igor.fogarasi Moderator
Joined: 11 Apr 2011 Posts: 553 Location: Novi Sad, Serbia
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Posted: Sun 22 Apr, 2012 4:53 pm |
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thanks ivica, it definitely might come in handy! |
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Darkman Citruholic
Joined: 20 Jul 2010 Posts: 966 Location: Pensacola Florida South of I-10 Zone 8b/9a
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Posted: Sun 22 Apr, 2012 9:55 pm |
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redster wrote: | Darkman my grapefruit seemed to do the same thing. They lost a good bit of tartness. Guess that's something ruby reds do. Hopefully i don't lose to many more fruit, id like to make more than last year. |
My grapefruit tree is so large that I can withstand a lot of drops without worrying as I will still have more than I know what to do with. Given a few more years and yours will too.
My other citrus are no where near large enough and I will be manually culling fruit pretty soon. I am more interested in the tree growing right now than having large crops. The link Millet provided is good reading. I will be identifying the branches that I want to grow to establish limb structure and then I'll cull all fruit only leaving a small amount of fruit on less important limbs to ripen. If there is a fruit on a limb there will be no growth where that fruit is until it has been removed. _________________ Charles in Pensacola
Life - Some assembly required, As is no warranty, Batteries not included, Instructions shipped separately and are frequently wrong!
Kentucky Bourbon - It may not solve the problem but it helps to make it tolerable! |
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redster Citruholic
Joined: 27 Mar 2008 Posts: 92 Location: new orleans, louisiana
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Posted: Mon 23 Apr, 2012 12:01 am |
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I actually like the shape of my tree right now, theres a few low branches flirting with the ground but other than that its fine. I may try to shape my latest 2 trees better. Cant wait till im producing more. _________________ owari satsuma
ruby red grapefruit
sunburst tangerine
meyer lemon
ponkan mandarin
st ann satsuma
gold nugget mandarin
sour kumquat(potted)
21 pineapples |
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