Hemmy’s 2018 JBP Crop

hemmy

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I finally got mine planted on Feb. 25th, only a month later than I wanted. Only the 2 flats on the left are the pines (others are English Oaks). I divided the 1 oz into thirds. One third was exposed to scalding hot water, soaked for 24hrs and then put back in the fridge in a bag with a moist paper towel. The 2nd flat has 1/3rd portion that was soaked in tap water for 24hrs and then back to the fridge. I had intended to leave them in the fridge for a week, but life happened and they were in closer to 3 weeks. The other 1/3 of the seeds is in a cool place and will be planted in another month.
 

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thomas22

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Germinated after 3 weeks of planting out. Like previous year, faster germination and higher rates from portion soaked in hot water (top) than cold water (bottom)
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This makes me feel better about my crop. I planted two weeks ago exactly and havent had any sprouts yet. So I have another week before I start to worry again.
 

hemmy

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34 days from germination, with some damping off. Alternating Daconil and Copper spray. Top half was scarified in hot water and bottom in cold, maybe a slightly higher germination rate with the hot water. The true needles are about 1/8 to 1/4” long. I’ll start cutting this weekend that way I can replace the failed ones over the next couple weeks.
 

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hemmy

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At 47 days from average germination, I stem cut three flats (54 pots) and used a powdered rooting hormone. I used several different mixes; APL, just pumice/lava; pumice with fine orchid bark, and straight pumice. You can hardly see where I took the seedlings from and I still have 1/3rd oz dry seeds as backup.

I used a 3/4” PVC pipe to make the center depression in the wet media and then poured in play sand and wetted the entire media before making a hole in the sand with a chopstick. The flats went into the shade for a few weeks and I’m setting up the misters this weekend.

I’ll replace the failures as needed and will also try some in Rootmaker air pruning cells (1/2 will be seedling cut and other half just letting the air prune work.)

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my nellie

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34 days from germination, with some damping off. Alternating Daconil and Copper spray... ...
What is the soonest time one can use chemicals on seedlings after their emergence.
My concern is wouldn't chemicals harm such soft tissue?
 

hemmy

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What is the soonest time one can use chemicals on seedlings after their emergence.
My concern is wouldn't chemicals harm such soft tissue?

Fungicides? Which ones do you have over there? You could always test it first in a few seedlings, but I think you could spray Daconil (Chloranil) immediately on pines. They seem pretty tough. You could also spray it on the soil before germination.

I would definitely test a copper fungicide first and not soak the soil. High levels of copper is toxic to roots and was once used in root pruning containers. But that might be overly cautious. You could also try cinnamon, it is supposed to be a natural fungicide.
 

my nellie

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Thank you for your response @hemmy
Fungicides? Which ones do you have over there? You could always test it first in a few seedlings, but I think you could spray Daconil (Chloranil) immediately on pines. They seem pretty tough. You could also spray it on the soil before germination.

I would definitely test a copper fungicide first and not soak the soil. High levels of copper is toxic to roots and was once used in root pruning containers. But that might be overly cautious. You could also try cinnamon, it is supposed to be a natural fungicide.
Yes, fungicides I mean.
Daconil is available in Greece.
Cinnamon is routinely used on Orchids, sprinkled over cut roots or stems. I thought about cinnamon, too. To sprinkle it over the soil.
Moreover, one could also use garlic water.
I remember that on old IBC member Giangus (Lotus bonsai) from France has posted his methods of raising trees from seeds and has told us about his garlic tea.
Giangus is a commercial producer of trees for bonsai.
Press 2 or 3 fresh garlic gloves and put in a bottle of 1 l. water. Leave this water bottle with garlic under sunlight for 24h.
Use this garlic tea for watering the seedlings till their stem get stronger specially for pine trees.
 

my nellie

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@hemmy Fungicides I have at hand are :

1) Nimrod (bupirimate)
2) Previcur (propamecarb hydrochloride+fosetyl Al)
3) Systhane (myclobutanil)
Do you think any of these is appropriate to use?

In your mix do you use the fungicide at reduced doze than indicated on the label?

Thanks in advance!
 

hemmy

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@hemmy Fungicides I have at hand are :

1) Nimrod (bupirimate)
2) Previcur (propamecarb hydrochloride+fosetyl Al)
3) Systhane (myclobutanil)
Do you think any of these is appropriate to use?

In your mix do you use the fungicide at reduced doze than indicated on the label?

Thanks in advance!

Sorry, I have not use any of those 3. But a quick google search shows references to Previcur being used in greenhouses to control damping off associated with Pythium sp. and Pythium sp. is mentioned as one of the causes of conifer seedling damping off.

I just tripled my knowledge on damping of by reading this link:
https://pnwhandbooks.org/plantdisease/pathogen-articles/common/fungi/damping-tree-nurseries

On my concentration range, Daconil has a huge range for conifers (1-1/2 tsp to 3Tbs per gallon). That’s like a 6x range! I go full strength for mature plants and have sprayed seedlings with that concentration.
 

River's Edge

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34 days from germination, with some damping off. Alternating Daconil and Copper spray. Top half was scarified in hot water and bottom in cold, maybe a slightly higher germination rate with the hot water. The true needles are about 1/8 to 1/4” long. I’ll start cutting this weekend that way I can replace the failed ones over the next couple weeks.
If you are experiencing a lot of dampening off, consider air movement on the seedlings. It is important. Remove any covers that are keeping the foliage and stems damp. i have never used any fungicides with pine seedlings. I do use chopped sphagnum finely spread on the surface as it has some antifungal, antibacterial properties. Just a suggestion.
 

River's Edge

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If you are experiencing a lot of dampening off, consider air movement on the seedlings. It is important. Remove any covers that are keeping the foliage and stems damp. i have never used any fungicides with pine seedlings. I do use chopped sphagnum finely spread on the surface as it has some antifungal, antibacterial properties. Just a suggestion.
If indoors, i simply used a small computer fan set beside the trays. Outside just made sure not in an extremely windy area. No cover either indoors or out. Let the surface dry some between watering.
 

hemmy

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Remove any covers that are keeping the foliage and stems damp.
To Frank’s point, I was several days late to remove the plastic domes which was probably part of my problem and why I was spraying. His sphagnum tip is also great and I have recently seen it recommended elsewhere.
 

hemmy

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At 47 days from average germination, I stem cut three flats (54 pots) and used a powdered rooting hormone. I used several different mixes; APL, just pumice/lava; pumice with fine orchid bark, and straight pumice. You can hardly see where I took the seedlings from and I still have 1/3rd oz dry seeds as backup.

I used a 3/4” PVC pipe to make the center depression in the wet media and then poured in play sand and wetted the entire media before making a hole in the sand with a chopstick. The flats went into the shade for a few weeks and I’m setting up the misters this weekend.

I’ll replace the failures as needed and will also try some in Rootmaker air pruning cells (1/2 will be seedling cut and other half just letting the air prune work.)

View attachment 191618View attachment 191619View attachment 191620View attachment 191621View attachment 191622View attachment 191623View attachment 191624
3 weeks since 1st batch seedling cuttings and haven’t lost any yet, even with auto misters for a week of vacation. I added another flat in RootMaker seedling pots (18), 9 without cutting and 9 cutting. I also seedling cut about 20 at once and clumped them together for fun. The other 3 terra-cotta pots are just clumps of transplanted seedlings without cutting and I still have ~100 in the germination flat and 1/3oz of seeds in storage!
 

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hemmy

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3 weeks since 1st batch seedling cuttings and haven’t lost any yet,

At 6 weeks (~June 25th) since cutting main batch and just starting to get roots out of the bottoms.
 

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hemmy

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Almost 10 months since germination. All stem cut except for the clump.
 

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hemmy

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Updated pics, just shy of 13 months after germination. I repotted a few to larger containers last fall and they seem to have put on more growth or elongated the candles faster than the cut seedlings left in the small containers. The candles have elongated and opened on most all the seedlings and I decided to repot 3 yesterday to see how these young plants would respond. The April ‘19 repotted plants have spoons in them. For comparison, the clumps are loose seedlings with no root work, just because I couldn’t bear to throw them out. The 3 small single pots next to the larger pots are showing the size range of the seeding cut plants not potted up since cutting. The flats are the bulk of those cut seedlings.
 

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