Korean Maple Sudden Leaf Curling and “crunchy”. Thoughts?
S Mann
3 years ago
last modified: 3 years ago
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pennlake
3 years agoS Mann
3 years agoRelated Discussions
Suggestions for non-astringent persimmons for New England, zone 6
Comments (35)Creek, the thing that just doesn't add up about your model is why it only arises on virginiana rootstock. It both requires a virus to be latent in many scions and for it to be latent except when grafted on virginiana. This is because it is not likely that seedlings would get infected before they were grafted on. I do know that some rootstocks are not tolerant of some latent viruses, for example G16 is very sensitive to some viruses and they can kill the stock. So, while your explanation could be correct it seems unlikely. It wouldn't be hard to test, do the virus heat removal procedure on a "known bad" scion and compare it with the non-removed scion on 10-20 virginiana seedling grafts. The graft incompatibility theory is also a bit strange because usually interstems solve incompatibility, but it is not surprising that there could be exceptions to that -- the scion/root relationship is complex, the scion in fact "pulls" nutrients from the roots by sending signals to the root (which I know almost nothing about); it could be a problem with that signaling mechanism. Anyway, clear as mud. Scott...See MoreFavorite Phal almost rootless
Comments (24)In my situation, I'm actually finding that in large pots (8" or larger) CHC stays damp longer than spagh. I have a very large Phal hybrid in a 8" pot with CHC and even though the top inch or so dries out, if I really check down deep, the bottom portion is still fairly damp. Definatley one of those lift and check weight kind of plants. I also have a small Violacea species in a 4" pot with CHC and it does dry out fairly quickly, so it seems to based on quantity. I think that one thing that is important concerning using spaph, is how it is packed around the plant. I don't like plants to be hard packed into spagh, I'm more of the 'stuff as much as you can without hurting the roots kind of spagh guy'. When viewing through clear pots, I usually see some air voids in the media.(That is until the moss and such take over the clear pot). **Kneeling down seeking forgivenes from the phal goods, Bob makes this statement:** I water my 40+ phals once a week, on Saturdays. If the pot seems to still be damp, I wait until the next Saturday. It seems to work for me most of the time. There may be a special occasion or plant that I treat differently, but between misting mounties every morning and evening, the Wednesday morning waterings and dealing with the other 100+ non-phals, I need to keep things fairly simple and regulated to maximize my enjoyment of the hobby. A few years ago it started to feel like a 'job', so I took the more laid back approach. Back then, Saturday morning waterings took 2+ hours, Tuesday evening waterings took about 1-1.5 hours and it just started to seem like a hassle. I then switched up my grow room to accomodate watering in place (had been a hauler and dunker) and now the Wednesday morning watering takes @10-15 minutes and I can water my entire collection and the house plants on Saturdays in about 45 minutes. Shortening those watering times really helped me to enjoy my orchids even more. Bob...See MoreHow to tell mineral or nutrient deficiency in plants and soil
Comments (160)Jue Shei: for the 1st picture, you are right that the whole plant is not pale, but only the upper leaves. I look at your 1st pic. three times, and it looks like iron deficiency (dark veins on pale leaves). See below excerpt: "Iron Deficiency: Caused by High soil pH and salinity. - High Phosphorus, Manganese, Calcium, Molybdenum or Zinc levels. - Soil low in organic matter & Insufficient drainage. Leaves become yellow or near white between their veins. Stunted growth." From Straw: For your 1st pic., it looks like high soil pH (wood ash has pH of 13), plus salinity or high salt (wood ash is very high salt). If you did NOT put wood ash in the pot, it can also be poor drainage. My rose in soaking wet clay has that problem during heavy rain. If water cannot drain fast from a pot, upper leaves can have iron deficiency (pale background with darker veins). If it's a high pH problem from topping with wood ash, then scrape off the topsoil When the soil inside the pot IS NOT changed every 2 years, then the soil becomes compact and water can't drain fast, roses will turn pale. My most dark-green roses are with NEW potting soii which is fluffy and has air for root growth. If your soil is more than 2-year-old in the pot, then change to NEW SOIL will help. Old soil in the pot for more than 2 years accumulate too much salt, then become compact so roots have zero air, so leaves turn pale. From the web: "An ideal soil contains 25 percent air, 25 percent water, 45 percent minerals and 5 percent organic matter."...See MoreFALL COLOR THREAD - 2017
Comments (150)Yeah the fall colors have not been as great in our area this year either. I assume it has something to do with the odd weather this summer. First too wet, then too dry, then an early cold snap followed by a lengthy warm period. I was just glad that our crab apple turned out as nice as it did....See MoreEmbothrium
3 years agoS Mann
3 years agogardengal48 (PNW Z8/9)
3 years agoEmbothrium
3 years agoS Mann
3 years agoEmbothrium
3 years agolast modified: 3 years agowhaas_5a
3 years agogardengal48 (PNW Z8/9)
3 years agoS Mann
3 years agoEmbothrium
3 years agolast modified: 3 years agowhaas_5a
3 years ago
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