David, we use duckbills or manta rays exclusively here in the sandy loam soils
of Leelanau County because of high failure rate
With helicals in sand. I like the ductile 11" manta ray for apples and the 6"
inch aluminum or ductile for rocky soil in grapes. Whenever we have a helical
fail in an ol
I am in the 8th year of 3 year staggered planting growth of a Tall Spindle
Apple Orchard.
The Planted Area is about 2.5 acres containing 1750 trees.
As a first time grower in a VERY windy/blustery location, I did not want to
deal with movement or collapse.
Hence I chose 14ft long treated Yellow sou
George, I can't build anything straight, so I refrain from giving advice on
trellis construction!
But, we all might find this information useful:
Constructing a vineyard trellis, Paul Domoto
http://www.prairiefirewinery.com/Cellar/wp-content/uploads/2016/12/Vineyard-Trellis-Construction.pdf
Ho
This year at the Washington Hort Meetings and at the IFTA, Mark De Kleine gave
presentations on trellis building and structural integrity for support systems.
Check out this article:
http://www.growingproduce.com/fruits/apples-pears/dont-underestimate-the-importance-of-a-solid-foundation-in-your-
David and All:
I remember someone burying 5 foot pieces of telephone poles, cross-wise,
perhaps 3-5 feet deep at the end of a row. Most of the trellises I built in
Biglerville PA survived.
I did have a Geneva Double-Curtin grape trellis fail when, after a big wind
storm flipped up one side of
David,
I use these, and they work great. I have no idea how they would work in
your situation:
http://www.wilsonirr.com/ecommerce/trellis/anchoring/screw-anc-36-hvy-8-disc-hv-rod.php
You screw them into the ground using a tool that mounts on a 3 point auger
rig:
http://www.wilsonirr.com/ecommerce
Kurt and Mo:
Thank you for your comments.
If pull-out is the reason for discarding the Duckbill anchoring
method, I wonder if a larger model would
overcome that. The largest Duckbill model is about 12 inches long. A second
line of “duckbills”, also by F
David
Duckbills have not worked for us. We've not been able to get screw in
anchors past the rock. 4'-5' x 3" channel iron often takes my 60,000 lb
excavator to pull out of the ground. Broken regular hard steel tow chain
trying to pull them out. That said, if not driven deep so as to only be an
i
Hello David,
We only use the screw in anchors on our trellis structures when they are
needed. We have very similar soil types to you here in Northwest New Jersey.
Years ago we tried the drive in duck bills and they easily pulled out of the
soil and did not work. I just don't think that there
