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[IBC] Black Pine about 700 mile north of the true Tropics
Greetings All,
Thanks to Khaimraj for his encouraging note on black pines in the true tropics. I started a thread on the gallery awhile ago that reflected my frustration as well as my tenacity at trying to keep JBP bonsais alive in the Dallas, TX area (Zone 8b). Several tried to encourage me to keep trying. Ernie Kuo, based on his knowledge of the area and the experience of other Dallas enthusiasts with JBP, encouraged me to try other species. That kind of encouragement should be (and is!) taken very seriously. Still, I look around the landscape in Dallas and I see JBP's thriving in Dallas' heavy, alkaline black clay soil and everything else that goes along with the environment here. Could one of the primary factors that lead enthusiasts in tropical or other warm climates to despair over JBP's be that summer temperatures cook the roots in unshaded/unprotected pots? For the last two years I have buried two black pines in the ground in their growing pots during the spring and summer. One of them is an older tree, about 3 inches in diameter; the other is one purchased in a 1 gallon nursery container and is about 1 inch in diameter. The holes were no wider than the containers, but dug deep enough that I could put gravel in the bottom to insure drainage. It seems that these two trees are my healthiest pines. In fact they are the ones I've had the longest. The most common result I have with JBP's is that they get a kind of worm infestation in the new shoots in July and August and die-- from pine tip moths or borers or something. Because there are healthy trees around, planted in the ground or buried like the two mentioned above, I'm guessing that my dead trees succumbed because of stress. Am I on the right track? Blessings, Tim Ahlen Dallas, TX Zone 8b ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#2
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[IBC] Black Pine about 700 mile north of the true Tropics
Am I on the right track? asks Tim.
Yes, I believe you are. JBP candle tip borer is decimating the species all over the country. I've been growing them on Long Island for 50 years. Because I've been giving them good treatment, I haven't lost any. My garden abuts a park in which JBP were planted 30 years ago. ALL of them are now gone from the park, but mine continue to flourish. Reason? you guessed it - weakened trees are much more suceptible to the borer than healthy ones. Keep them in the sun, feed them once in awhile, keep them well pruned, water them during droughts, and you'll do fine. One more thing. If you see white fuzzy or bubbly material on your branch tips, spray them repeatedly with soapy water. That will suffocate the little devils. Marty ----- Original Message ----- From: "Tim Ahlen" To: Sent: Wednesday, January 07, 2004 1:29 PM Subject: [IBC] Black Pine about 700 mile north of the true Tropics Greetings All, Thanks to Khaimraj for his encouraging note on black pines in the true tropics. I started a thread on the gallery awhile ago that reflected my frustration as well as my tenacity at trying to keep JBP bonsais alive in the Dallas, TX area (Zone 8b). Several tried to encourage me to keep trying. Ernie Kuo, based on his knowledge of the area and the experience of other Dallas enthusiasts with JBP, encouraged me to try other species. That kind of encouragement should be (and is!) taken very seriously. Still, I look around the landscape in Dallas and I see JBP's thriving in Dallas' heavy, alkaline black clay soil and everything else that goes along with the environment here. Could one of the primary factors that lead enthusiasts in tropical or other warm climates to despair over JBP's be that summer temperatures cook the roots in unshaded/unprotected pots? For the last two years I have buried two black pines in the ground in their growing pots during the spring and summer. One of them is an older tree, about 3 inches in diameter; the other is one purchased in a 1 gallon nursery container and is about 1 inch in diameter. The holes were no wider than the containers, but dug deep enough that I could put gravel in the bottom to insure drainage. It seems that these two trees are my healthiest pines. In fact they are the ones I've had the longest. The most common result I have with JBP's is that they get a kind of worm infestation in the new shoots in July and August and die-- from pine tip moths or borers or something. Because there are healthy trees around, planted in the ground or buried like the two mentioned above, I'm guessing that my dead trees succumbed because of stress. Am I on the right track? Blessings, Tim Ahlen Dallas, TX Zone 8b ************************************************** ************************** **** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ************************** **** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#3
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[IBC] Black Pine about 700 mile north of the true Tropics
Am I on the right track? asks Tim.
Yes, I believe you are. JBP candle tip borer is decimating the species all over the country. I've been growing them on Long Island for 50 years. Because I've been giving them good treatment, I haven't lost any. My garden abuts a park in which JBP were planted 30 years ago. ALL of them are now gone from the park, but mine continue to flourish. Reason? you guessed it - weakened trees are much more suceptible to the borer than healthy ones. Keep them in the sun, feed them once in awhile, keep them well pruned, water them during droughts, and you'll do fine. One more thing. If you see white fuzzy or bubbly material on your branch tips, spray them repeatedly with soapy water. That will suffocate the little devils. Marty ----- Original Message ----- From: "Tim Ahlen" To: Sent: Wednesday, January 07, 2004 1:29 PM Subject: [IBC] Black Pine about 700 mile north of the true Tropics Greetings All, Thanks to Khaimraj for his encouraging note on black pines in the true tropics. I started a thread on the gallery awhile ago that reflected my frustration as well as my tenacity at trying to keep JBP bonsais alive in the Dallas, TX area (Zone 8b). Several tried to encourage me to keep trying. Ernie Kuo, based on his knowledge of the area and the experience of other Dallas enthusiasts with JBP, encouraged me to try other species. That kind of encouragement should be (and is!) taken very seriously. Still, I look around the landscape in Dallas and I see JBP's thriving in Dallas' heavy, alkaline black clay soil and everything else that goes along with the environment here. Could one of the primary factors that lead enthusiasts in tropical or other warm climates to despair over JBP's be that summer temperatures cook the roots in unshaded/unprotected pots? For the last two years I have buried two black pines in the ground in their growing pots during the spring and summer. One of them is an older tree, about 3 inches in diameter; the other is one purchased in a 1 gallon nursery container and is about 1 inch in diameter. The holes were no wider than the containers, but dug deep enough that I could put gravel in the bottom to insure drainage. It seems that these two trees are my healthiest pines. In fact they are the ones I've had the longest. The most common result I have with JBP's is that they get a kind of worm infestation in the new shoots in July and August and die-- from pine tip moths or borers or something. Because there are healthy trees around, planted in the ground or buried like the two mentioned above, I'm guessing that my dead trees succumbed because of stress. Am I on the right track? Blessings, Tim Ahlen Dallas, TX Zone 8b ************************************************** ************************** **** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ************************** **** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#4
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[IBC] Black Pine about 700 mile north of the true Tropics
Am I on the right track? asks Tim.
Yes, I believe you are. JBP candle tip borer is decimating the species all over the country. I've been growing them on Long Island for 50 years. Because I've been giving them good treatment, I haven't lost any. My garden abuts a park in which JBP were planted 30 years ago. ALL of them are now gone from the park, but mine continue to flourish. Reason? you guessed it - weakened trees are much more suceptible to the borer than healthy ones. Keep them in the sun, feed them once in awhile, keep them well pruned, water them during droughts, and you'll do fine. One more thing. If you see white fuzzy or bubbly material on your branch tips, spray them repeatedly with soapy water. That will suffocate the little devils. Marty ----- Original Message ----- From: "Tim Ahlen" To: Sent: Wednesday, January 07, 2004 1:29 PM Subject: [IBC] Black Pine about 700 mile north of the true Tropics Greetings All, Thanks to Khaimraj for his encouraging note on black pines in the true tropics. I started a thread on the gallery awhile ago that reflected my frustration as well as my tenacity at trying to keep JBP bonsais alive in the Dallas, TX area (Zone 8b). Several tried to encourage me to keep trying. Ernie Kuo, based on his knowledge of the area and the experience of other Dallas enthusiasts with JBP, encouraged me to try other species. That kind of encouragement should be (and is!) taken very seriously. Still, I look around the landscape in Dallas and I see JBP's thriving in Dallas' heavy, alkaline black clay soil and everything else that goes along with the environment here. Could one of the primary factors that lead enthusiasts in tropical or other warm climates to despair over JBP's be that summer temperatures cook the roots in unshaded/unprotected pots? For the last two years I have buried two black pines in the ground in their growing pots during the spring and summer. One of them is an older tree, about 3 inches in diameter; the other is one purchased in a 1 gallon nursery container and is about 1 inch in diameter. The holes were no wider than the containers, but dug deep enough that I could put gravel in the bottom to insure drainage. It seems that these two trees are my healthiest pines. In fact they are the ones I've had the longest. The most common result I have with JBP's is that they get a kind of worm infestation in the new shoots in July and August and die-- from pine tip moths or borers or something. Because there are healthy trees around, planted in the ground or buried like the two mentioned above, I'm guessing that my dead trees succumbed because of stress. Am I on the right track? Blessings, Tim Ahlen Dallas, TX Zone 8b ************************************************** ************************** **** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ************************** **** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#5
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[IBC] Black Pine about 700 mile north of the true Tropics
At 12:29 PM 1/7/04 -0600, Tim Ahlen wrote:
I started a thread on the gallery awhile ago that reflected my frustration as well as my tenacity at trying to keep JBP bonsais alive in the Dallas, TX area (Zone 8b). Several tried to encourage me to keep trying. Ernie Kuo, based on his knowledge of the area and the experience of other Dallas enthusiasts with JBP, encouraged me to try other species. That kind of encouragement should be (and is!) taken very seriously. Still, I look around the landscape in Dallas and I see JBP's thriving in Dallas' heavy, alkaline black clay soil and everything else that goes along with the environment here. Could one of the primary factors that lead enthusiasts in tropical or other warm climates to despair over JBP's be that summer temperatures cook the roots in unshaded/unprotected pots? For the last two years I have buried two black pines in the ground in their growing pots during the spring and summer. One of them is an older tree, about 3 inches in diameter; the other is one purchased in a 1 gallon nursery container and is about 1 inch in diameter. The holes were no wider than the containers, but dug deep enough that I could put gravel in the bottom to insure drainage. It seems that these two trees are my healthiest pines. In fact they are the ones I've had the longest. The most common result I have with JBP's is that they get a kind of worm infestation in the new shoots in July and August and die-- from pine tip moths or borers or something. Because there are healthy trees around, planted in the ground or buried like the two mentioned above, I'm guessing that my dead trees succumbed because of stress. Am I on the right track? Tim Yes, I think you are on the right track. There is an article at my website by Andy Walsh that goes into the dangers of excessive soil temperatures: http://www.evergreengardenworks.com/rootheat.htm I know for a fact that it is a serious problem in growing White pine, Pinus parviflora, in containers. My losses went down to almost zero once I began putting them under shadecloth in the summer. Although the ambient air temperature is the same, the pots don't heat up above this point under the shadecloth. Black nursery pots, and even stone bonsai pots, are little solar collectors in direct sunlight. I have observed the phenomenon of dead roots on the sun side of the pot, while the shaded side roots were fat, white, and healthy. It isn't as hot here as there, but it is still a problem for Pinus thunbergii that I plan to address. Your solution of plunging the pots is a good one, but is impractical for me. I plan to paint the pots white on the south and west sides. There is a shade paint compound made for greenhouse plastic film that can be sprayed on, but it doesn't contain a binder so it comes off with repeated applications of water. Since my plants are drip irrigated, it should last through the summer. Brent in Northern California Evergreen Gardenworks USDA Zone 8 Sunset Zone 14 http://www.EvergreenGardenworks.com ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
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