Pine Trees

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  1. Bull Thistle
  2. Sap in Pine Trees
  3. Growing a Tree From a Cone
  4. Pine Tree Dying (Brown) – Illinois
  5. Pine Cones
  6. How Long Does Sap Run From Limb of Mature Pine Tree?
  7. Are My Trees Dying?
Asked by Anonymous on August 31, 2011
Bull Thistle

I have an area around a pine tree (I planted day lilies all around the front of the base of the tree 7 years ago) that is full of thistle. I keep hand pulling it, but it keeps growing back. I was wondering about planting other native Indiana plants that might help to crowd out the thistle. Any suggestions?

ANSWERS
Nikki
Certified GKH Gardening Expert
Yes, it would help but you'll have to get rid of the thistle first. They are tough to get rid of once established because of their root and rhizome system. In addition, their seed is very viable, blows easily in the wind, and will establish just about anywhere. Pull up what you can and spot treat the area with Roundup, preferably in the late summer to fall BEFORE the weed goes to seed. You could also try suffocating it with plastic, landscape fabric, ormoist newspaper covered with mulch.
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Asked by Anonymous on September 1, 2011
Sap in Pine Trees

My yard is primarily pine trees. I’ve been told that when the sap rises in the trees, it produces the noise that people often think is made by cicadas. Can moving sap really cause the forest hum?

ANSWERS
Nikki
Certified GKH Gardening Expert
Well, this is a new one on me. The sap flowing through pine trees does not make that sound, but the cicada noise would indeed be coming from the trees. Cicadas actually favor pine trees for feeding and will often chant their 'mating' calls from the trees as well. This is why you hear them so good around pine trees, though they do get loud enough to hear them just about anywhere.
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Asked by Anonymous on September 5, 2011
Growing a Tree From a Cone

Is it possible to take a cone from a beautiful different type of pine tree and grow one of your own?

ANSWERS
Nikki
Certified GKH Gardening Expert
Asked by Anonymous on September 6, 2011
Pine Tree Dying (Brown) – Illinois

My Pine tree appears to be dying. I have 3 pine trees in a row. They are over 30 years old. The first tree died at the end of the year last year, but I kept it in hopes that it was just adjusting to climate. It is definitely dead. The second tree is now experiencing similar problems and I have sprayed insecticide and placed nutrients around the tree. The third tee is just beginning to show signs of the same problem. Who can I contact in DuPage County, Illinois to help me save my trees?

ANSWERS
Nikki
Certified GKH Gardening Expert
Do you know the variety of the tree? There are several species specific diseases that might cause this, but I need to know the species to investigate. If you can send me the type of pine tree it is, I should be able to give you some direction in what might be killing them. If you would like, the University of Illinois extension office should be able to help you as well. This is their website: http://web.extension.illinois.edu/dupage/?CFID=37476861&CFTOKEN=38157422
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Asked by Anonymous on September 8, 2011
Pine Cones

When does a spruce or pine trees start to produce pine cones? Is it near the end of their life?

ANSWERS
Nikki
Certified GKH Gardening Expert
Pine cones are constantly produced throughout their lifetime, with peaks in cone production about every 3-5 years.
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Asked by AnnyzYard on September 23, 2011
How Long Does Sap Run From Limb of Mature Pine Tree?

My neighbor, in August, cut a few limbs off two pine trees. The sap drips on my wood deck AND my concrete patio floor. Aside from cleaning the drip spots, the sap is of course tracked onto the interior flooring of my home. How long do I have to put up with the sap?

ANSWERS
Heather
Certified GKH Gardening Expert
It really should have stopped by now. If it is still weeping sap, this means it likely has an issue with the cut. I would ask your neighbor to check the cuts and see if one has a fungus infection or a pest problem. As a precaution, he should treat the cuts with a fungicide.
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Asked by Anonymous on October 25, 2011
Are My Trees Dying?

I have several pine trees on the north side of my home that I have lived at for 4 years. I noticed that from the inside out the needle are turning orange as if they are dying. The trees are easily 30 years old. I am concerned the trees are dying. Any information you have on this will be helpful.

ANSWERS
Nikki
Certified GKH Gardening Expert
It is hard to say without seeing the trees, but it does sound like they have a problem. If they have been healthy up until now, then you should check for environmental changes that could be making them ill. Things like new construction or plantings can divert water and nutrients from the trees. Has there been any changes like this near the trees? We recommend that you have a local arborist come and look at the trees. He or she can better give you information on what may be wrong with the trees.
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