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#1
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Axial Borer
My eureka lemon tree recently quickly died. When I cut it down I found that
an axial borer had drilled out the centre of the wood. The borer had got right down into the stump. I quickly disposed of the cuttings but now it is in three Murraya bushes. I have not seen the borer. The wood shows no entry point that I can find. There is no saw dust. Regards Doug |
#2
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Axial Borer
"The Old Bloke" wrote in message ... My eureka lemon tree recently quickly died. When I cut it down I found that an axial borer had drilled out the centre of the wood. The borer had got right down into the stump. I quickly disposed of the cuttings but now it is in three Murraya bushes. I have not seen the borer. The wood shows no entry point that I can find. There is no saw dust. Regards Doug From what I've read on the Canadian Forestry site, some parasites gain entry thru cracks in the tree-bark, damaged wood or sap-holes. At least with pines, leaking sap is a powerful attractant. Out here in the country where the drought is biting deep, any sick or thirsty trees are more susceptible, apparently. The sheer number of different parasites makes it difficult to gain the satisfaction of knowing which one it is. Jason |
#3
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Axial Borer
"Jason James" wrote in message ... "The Old Bloke" wrote in message ... My eureka lemon tree recently quickly died. When I cut it down I found that an axial borer had drilled out the centre of the wood. The borer had got right down into the stump. I quickly disposed of the cuttings but now it is in three Murraya bushes. I have not seen the borer. The wood shows no entry point that I can find. There is no saw dust. Regards Doug From what I've read on the Canadian Forestry site, some parasites gain entry thru cracks in the tree-bark, damaged wood or sap-holes. At least with pines, leaking sap is a powerful attractant. Out here in the country where the drought is biting deep, any sick or thirsty trees are more susceptible, apparently. The sheer number of different parasites makes it difficult to gain the satisfaction of knowing which one it is. Jason Thanks Jason, I agree that the water stress is probably making plants more susceptible. I have often dealt with borers that go in, leave a trail of dust. But with whatever these are, there is no visible sign till a major part of the plant dies. When I then start lopping off the dead branch, the axial borehole has usually got right down into the lower trunk. A single hole can be 4-6 ft long. |
#4
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Axial Borer
"The Old Bloke" wrote in message ... My eureka lemon tree recently quickly died. When I cut it down I found that an axial borer had drilled out the centre of the wood. The borer had got right down into the stump. I quickly disposed of the cuttings but now it is in three Murraya bushes. I have not seen the borer. The wood shows no entry point that I can find. There is no saw dust. Regards Doug Could be the augur beetle or perhaps termites. I would think you'd see the latter though. Looks like both attack trees that are not healthy and possibly on the way out anyway. It is interesting that it is a citrus and murraya's that are affected. Both belong to the same family. You might need to get a soil test. Cheers Richard |
#5
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Axial Borer
"The Old Bloke" wrote in message
... My eureka lemon tree recently quickly died. When I cut it down I found that an axial borer had drilled out the centre of the wood. The borer had got right down into the stump. I quickly disposed of the cuttings but now it is in three Murraya bushes. I have not seen the borer. The wood shows no entry point that I can find. There is no saw dust. I've had good success iwth treating cherry tree borer with metho or even detergent. I got a big cow syringe from the vet, filled it and put the needle it in the holes (dunno what sort of borer it was though). |
#6
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Axial Borer
"The Old Bloke" wrote in message
I have often dealt with borers that go in, leave a trail of dust. But with whatever these are, there is no visible sign till a major part of the plant dies. When I then start lopping off the dead branch, the axial borehole has usually got right down into the lower trunk. A single hole can be 4-6 ft long. I also recently had a lemon tree looking as sick as it was possible to be without actually being dead. I finally got sick of trying to cosset the rotten thing and pulled it out. It was young and small so I could check it out well when I ripped it up and I found a hole right at ground level which wasn't visible when in the ground. There was no other borer hole anywhere to be seen. Could this have been an axial borer? |
#7
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Axial Borer
"Farm1" please@askifyouwannaknow wrote in message ... "The Old Bloke" wrote in message I have often dealt with borers that go in, leave a trail of dust. But with whatever these are, there is no visible sign till a major part of the plant dies. When I then start lopping off the dead branch, the axial borehole has usually got right down into the lower trunk. A single hole can be 4-6 ft long. I also recently had a lemon tree looking as sick as it was possible to be without actually being dead. I finally got sick of trying to cosset the rotten thing and pulled it out. It was young and small so I could check it out well when I ripped it up and I found a hole right at ground level which wasn't visible when in the ground. There was no other borer hole anywhere to be seen. Could this have been an axial borer? Perhaps. But in each of my cases, as I lop further down, I get to a point where there is no longer a centre hole. So, mine start above ground level. I have spoken to a couple of nurserymen and they say that they started seeing this in the last year as the drought worsened. 50mm rain today. Whoopee! |
#8
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Axial Borer
"The Old Bloke" wrote in message ... "Farm1" please@askifyouwannaknow wrote in message ... "The Old Bloke" wrote in message I have often dealt with borers that go in, leave a trail of dust. But with whatever these are, there is no visible sign till a major part of the plant dies. When I then start lopping off the dead branch, the axial borehole has usually got right down into the lower trunk. A single hole can be 4-6 ft long. I also recently had a lemon tree looking as sick as it was possible to be without actually being dead. I finally got sick of trying to cosset the rotten thing and pulled it out. It was young and small so I could check it out well when I ripped it up and I found a hole right at ground level which wasn't visible when in the ground. There was no other borer hole anywhere to be seen. Could this have been an axial borer? Perhaps. But in each of my cases, as I lop further down, I get to a point where there is no longer a centre hole. So, mine start above ground level. I have spoken to a couple of nurserymen and they say that they started seeing this in the last year as the drought worsened. 50mm rain today. Whoopee! Saw it on the news! And I hope all those 'No point buying a tank because there's no rain' buggers are pulling their hair out today....lets hope that more comes your way. |
#9
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Axial Borer
"The Old Bloke" wrote in message
"Farm1" please@askifyouwannaknow wrote in message "The Old Bloke" wrote in message I have often dealt with borers that go in, leave a trail of dust. But with whatever these are, there is no visible sign till a major part of the plant dies. When I then start lopping off the dead branch, the axial borehole has usually got right down into the lower trunk. A single hole can be 4-6 ft long. I also recently had a lemon tree looking as sick as it was possible to be without actually being dead. I finally got sick of trying to cosset the rotten thing and pulled it out. It was young and small so I could check it out well when I ripped it up and I found a hole right at ground level which wasn't visible when in the ground. There was no other borer hole anywhere to be seen. Could this have been an axial borer? Perhaps. But in each of my cases, as I lop further down, I get to a point where there is no longer a centre hole. So, mine start above ground level. Thanks for that info - must do some research on borers. I generally live and let live with garden insects. I have spoken to a couple of nurserymen and they say that they started seeing this in the last year as the drought worsened. 50mm rain today. Whoopee! You lucky bugger! How 'bout sharing it around? |
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