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.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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What is the soonest time one can use chemicals on seedlings after their emergence.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?
Yes, fungicides I mean.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.
@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!
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.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 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.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.
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.Remove any covers that are keeping the foliage and stems damp.
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!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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3 weeks since 1st batch seedling cuttings and haven’t lost any yet,
They are looking very healthy, good work.Almost 10 months since germination. All stem cut except for the clump.