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Messages - Greg A

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Tropical Fruit Discussion / Re: Avocado growth
« on: June 12, 2023, 12:42:22 AM »
Looks like Zutano

Hi John,
There are many ways you could keep the seeds viable until mid-June. Mason's is a good one.

You can also keep them dry and leave them in a cool, shady place for quite some time. Brokaw Nursery in California just keeps their seeds outdoors in big sacks in the shade. I'm not sure exactly how long you can leave them this way, but certainly a few weeks is not too long.

You can refrigerate them too. Back in the 70's some California researchers cleaned and dried seeds and then put them in plastic bags in the fridge for a full year and still got satisfactory germination. See:

Tropical Fruit Discussion / Re: Avocado seedling damage
« on: November 28, 2022, 11:55:11 PM »
I agree: doesn't look like cold damage.

Looks like a watering issue. Could be that the pot dried out too much one time. Or could be that the pot hasn't been watered thoroughly on a consistent basis. Or could be that the water used is high in sodium or chloride. Or it's a combination.

Either way, these watering issues accumulate invisibly for a while (weeks or even months) until they show as leaf burn.

Tropical Fruit Discussion / Re: Restoring a 30+ year old avocado orchard
« on: October 15, 2022, 07:40:46 PM »
Hi Janet,
Yes, that's me. Thank you. It's great to hear that you plan to keep and propagate those trees that are showing themselves to be tougher than others. Maybe we will all benefit from what you find someday.

Tropical Fruit Discussion / Re: Restoring a 30+ year old avocado orchard
« on: October 11, 2022, 12:06:48 AM »
Very cool, Janet. It would be fun to try to get an idea of why certain trees look better than others: deeper soil, lower on slope, in drainages, north aspect, rootstock?

Will you be replanting some new avocados or just reviving some of the existing?

Tropical Fruit Discussion / Re: Avocado tasting
« on: May 02, 2021, 03:48:57 PM »
Thanks Brad and Brianna. Great to meet everyone. That was way more fun than tasting avocados alone. I loved hearing everyone's impressions, and like Brad said, the impressions varied a lot.

Some of the few consistencies I heard were many people's surprise at how delicious the Bacon was, as well as how bland the Reed was. But it's all about harvest seasons, as Brad said. Those Bacons were as rich and flavorful as Bacons can possibly get before dropping off the tree whereas the Reeds weren't even ready to be harvested yet.

At the same time, I heard lots of people say there were surprised at how good the Nabal was there on May 1. I too couldn't believe how tasty it was so early in the year, before its usual harvest season.

Simon, I have to repeat what everyone else has said: the avocado smoothie and sugarcane juice were amazing!

I was sick of eating avocados at the end of the day yesterday, but then to my surprise I still cut one open for breakfast this morning and enjoyed it.

What a great hangout. Great idea and great generosity, especially Brad. I hope we can do something like that again.

Tropical Fruit Discussion / Re: Comparison of 3 top Pomegranate varieties
« on: November 28, 2020, 11:09:06 PM »
I hear you guys about appreciating pomegranates more and more. I used to take them for granted because they are so easy to grow. But this time of year when they're starting to split open on the tree and so full-flavored I actually crave them.

Here's a bad (but very short!) video of how I like to open pomegranates:

I always just eat them out in the yard though. So I don't mind it being a bit messy.

Tropical Fruit Discussion / Re: Avocado thread
« on: November 10, 2020, 11:58:51 PM »
Looks immature to me. I would wait to pick one for testing around May of 2021.

Tropical Fruit Discussion / Re: So. Cal avocados varaiety
« on: June 16, 2020, 09:37:08 PM »
Thanks for the heads up.

Can anyone identify the mango in the photo below? It is from a grafted tree growing in San Diego, but the owner doesn't recall which variety he planted. The photo was taken yesterday, December 3.

Tropical Fruit Discussion / Re: Avocado thread
« on: November 30, 2019, 09:02:48 PM »
Definitely second the idea of using a Bacon tree to graft other varieties onto. That's a great way to use the nice Bacon tree structure.

Tropical Fruit Discussion / Re: John Herd avocado
« on: September 15, 2019, 11:45:49 PM »
Thanks for this, Jack. Is this about the middle of your Hass season in Nipomo?

On a side note: Anything distinctive about Leaven's Hass that you've noticed (compared to Hass)?

Tropical Fruit Discussion / Re: Purple passionfruut comparison
« on: September 15, 2019, 11:36:44 PM »
Thanks for posting this, Brad.

My experience is the same as Oolie's, in terms of taste and color in summer passionfruit compared to other seasons.

Tropical Fruit Discussion / Re: Avocado grafting
« on: June 09, 2019, 06:42:46 PM »
It's going to work!

You might be interested in some of the observations of Bob Bergh, who ran the avocado breeding program of the University of California for decades. (The first paragraph deals with speeding up the fruit production of seedlings, and the second paragraph is about how many years it usually takes for seedlings to produce.)

"Perhaps the greatest problem of the avocado breeder is the length of time required, in conjunction with the large amount of space required. There are 2 ways that we are going at this problem of shortening the juvenility stage. One is to graft the seedlings onto large plants. This is an idea that we thought about vaguely and I finally was stimulated to try in a visit to Israel 2 years ago when I saw it in operation there. Often you can get fruiting the year after you graft or at least 2 years afterwards.

"The other way is to breed for more precocious seedlings. The new 'Pinkerton' variety is astonishingly precocious for us and it will be the basis of this precocity breeding. In California we say that the earliest cultivars will come into production in maybe 3 years with a few fruits and more in the fourth and fifth years. Seedlings come in maybe the fifth or sixth year and more in the eighth and ninth year. After 10 years we drop it. Seedlings of 'Pinkerton' have the remarkable ability to start bearing the second year from planting as seedlings. The little seedling is seemingly barely up, as we don't get as much growth in 2 years in California as in Florida or the more tropical areas, and can have maybe 20 or 30 fruits on it. This is just turning up now. The first fruiting is this year because we didn't know about the 'Pinkerton' until 2 years ago."

This is taken from:

Tropical Fruit Discussion / Re: Avocado thread
« on: March 21, 2019, 11:31:41 PM »
Cool comparison. Thanks. If you could only grow Pinkerton or SirPrize, which would you keep?

Citrus General Discussion / Re: Help with Citrus Leaves
« on: February 18, 2019, 04:08:18 PM »
Which tests are those? Maybe they're more recent than what I've seen.

I looked into the leafminer and imidacloprid issue some years ago because I was sick of one of my citrus trees getting attacked so badly. I wrote about it here:

But the essence is that I read that soil drenches are said to translocate into flowers and harm bees. The University of California's webpage for imidacloprid says this: "Imidacloprid applied as a soil treatment can move up into flowers to injure or kill bees, other pollinators and beneficial insects." (The page:

But maybe I'm not understanding it correctly, or maybe it's wrong or outdated?

Tropical Fruit Discussion / Re: Avocado thread
« on: February 17, 2019, 11:30:15 PM »
Any chance you could add a photo of the trees? Are the trunks 6-9 feet apart or is there 6-9 feet of space between the canopy edges?

And just curious, is this in Glendora?

Low of 28 for me too. Plenty of frost. Some leaf damage on bananas and new flush of avocados.

Only 31 in my yard this morning. Just bits of frost. No damage seen. January 4 was colder at 29.

Tonight is looking more dangerous though. I've put some blankets on baby avocados.

Love this winter so far. Good chill for the deciduous trees, no real damage on the subtropicals, plenty of rain.

Citrus General Discussion / Re: What is wrong with my page mandarin tree?
« on: January 14, 2019, 08:57:47 PM »
I don't have an answer, but as commiseration: Many of my citrus trees look most yellow this time of year, every year. I'm in SD County and I also mulch most of my trees heavily with wood chips. I no longer worry about it because they always green up well in spring and produce fine. Maybe your Page will too, on its own.

Citrus General Discussion / Re: What citrus would you plant?
« on: December 20, 2018, 07:31:34 PM »
The mandarin that I'd keep if I could only keep one would be Kishu. A close second would be Gold Nugget.

Absolutely. That's not what I meant to imply. Only that this isn't the first time that antibiotics are being approved for use on tree crops. Previous administrations/EPAs approved the use on apples and pears long ago (I don't recall which or exactly when).

To put this into context, we do have to remember that antibiotics are already being used on crops like apples and pears to control fireblight here in the U.S.

Tropical Fruit Discussion / Re: GEM avocado in Los Angeles area?
« on: October 19, 2018, 12:01:58 AM »
If your goal is a Hass-like avocado and you want to keep the tree to 15 feet, maybe you should just plant a Hass. I have a Hass that I keep to 15 feet, and it's easily done. I'm certain you can manage it.

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