borer silver birch

beelitan · 6th March 2011, 10:34 AM

dear arborist
i have a grove of about 15 silver birches and i have found borers in the main trunks of 5 trees. the diameter of these trunks vary from 3 cm to 10 cm. i have been told that there are no treatments perse, that only stressed and ill trees get the disease and correcting the stresses will help and nature will do the rest? i live in adelaide in south australia. the whole grove is laid with a dripper system and is watered for 8-12 hours weekly. there is a layer of straw put down each growing season. i found a lot of beetles under the straw this year. please help. i really want to save those trees and stop the borers spreading to the rest. thank you and cheers beeli .

derwoodii · 6th March 2011, 06:59 PM

Photos please.

Eric Frei · 6th March 2011, 08:14 PM

Quote:

Originally Posted by beelitan

i found a lot of beetles under the straw this year.

Did you know that borers are the larvae stage of bugs including beetles, moths etc. We need pics of the beetles too.

6th March 2011, 10:34 AM	#1
beelitan I'm new here so be nice Join Date: Mar 2011 Location: adelaide Posts: 1	borer silver birch dear arborist i have a grove of about 15 silver birches and i have found borers in the main trunks of 5 trees. the diameter of these trunks vary from 3 cm to 10 cm. i have been told that there are no treatments perse, that only stressed and ill trees get the disease and correcting the stresses will help and nature will do the rest? i live in adelaide in south australia. the whole grove is laid with a dripper system and is watered for 8-12 hours weekly. there is a layer of straw put down each growing season. i found a lot of beetles under the straw this year. please help. i really want to save those trees and stop the borers spreading to the rest. thank you and cheers beeli .

6th March 2011, 06:59 PM	#2
derwoodii Mature tree Join Date: Aug 2010 Location: Melbourne Posts: 406	Re: borer silver birch Photos please.

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