On 23 Jun 2006 07:10:25 -0700, "
wrote:


QUESTION: "HELP.....We have just planted some 12 foot Glory Maples
and some 6 foot Norway Spruce. How much should water do they need? 2
gallons, 5 gallons, 15 gallons?? per day, every other day? per week?
The trees are planted in Fairfax Virginia and our soil is clay and
rocks...also how soon before we feed them and what do you suggest
feeding them? Thank you for any help you can offer." - Ann Stone

ANSWER: I use a device called a Ross root feeder spike apparatus that
you should be able to pick up at a garden center or hardware store.
This is a spike that attaches to your hose and comes with watering
instructions. I would deep water my trees every 2 to 3 weeks during
this first season, using this Ross feeder.

Simply standing by your trees and spraying them with a hose or using a
lawn sprinkler will not get down to the roots where the water is
needed. If you deep water the roots every 2 to 3 weeks during this
first season you will be fine until fall. Fertilizing these trees can
be done at any time. If you're using the feeder, you can buy
fertilizer tabs that dissolve and go right to the roots through the
feeder.

If you decide not to use a root feeder, try a time-release triple-13
fertilizer or something comparable. Use about ½ to 1 cup around the
base of the tree but come out about 14 to 16" from the trunk.
BETTER ANSWER:
A newly planted tree has no "deep roots." The roots are all in the
original rootball. Usually, the tree comes with looser soil than the
transplant site, so it dries out quicker. For the first few weeks,
standing by the tree and spraying it is exactly what you should do,
and you should do it often. Once the tree begins to spread new roots
into the native soil, you should start thinking about deeper
water--but I prefer a nice, slow soaking to the method above. Tree
roots exist primarily in the top couple of feet of soil. A deep-root
wand will put most of the water below the tree roots.

As for fertilizer, it is irresponsible to recommend any regimen that
does not start with a soil test.

But virtually every tree will benefit from a properly-installed layer
of organic mulch (see link below for instructions).

QUESTION: Several years ago I bought 25 hybrid poplar. Within 1 and
1/2 years they grew 15 ft tall and were just beautiful, but this year
they got holes going in a circle half way up looking like a woodpecker
had got at them. They leaved out beautifully half way up the tree,
however the rest of the buds on the tree did not open although they are
not dead. We put some kind of
tree paint from our nursery that was black and the holes (which I think
are due to some kind of borer) have stopped moving up.

My question is what do we do with the 5ft of bare tree in the middle?
Do we cut it or leave for the tree to recover... or will it? Any help
you can give us would be appreciated as we do not want to lose our
beautiful trees as they line our 4 acre property. We live up in the
middle of the mountains and people always stop to admire our trees. -
Roberta Walsh

ANSWER: Don't despair! This should be fairly simple. You need to cut
out the dead section
down to the green wood. Once the dead is removed the tree will start a
process of putting on more top growth. Send a picture through email if
you can.
BETTER ANSWER:
If you want to determine what parts of the tree will survive, use the
thumbnail test. Scrape the bark of a suspect twig with your nail. If
you reveal green tissue under the surface, the twig is alive. If it
is dry and brown, it won't come back. Prune it to a branch collar
(see link below). Do not paint the wounds.

The holes are most likely from sapsuckers (bird family that includes
woodpeckers). They bore a series of holes, which exude sap. They
come back later to dine on the insects that are stuck in the sap.
Your treatment probably made their diner look less appealing, so they
moved on.

QUESTION: "What is the best what to rid my trees of bagworms?" -
John D

ANSWER: The first thing you have to do when you see them is to clip
them off the branches, put in a bag and take them somewhere to burn
them. Afterwards you need to spray the plants with an insecticide, such
as Monterey Garden Insect Spray, about once every 30 to 45 days.
Usually, you'll only need to do this two times per growing season.
Follow the direction on the bottle to make sure your particular plants
are okay with the chemical.
BETTER ANSWER:
Avoid poison controls. Spraying a tree means lots of overspray in
most cases. The simplest solution is to use a pole of some kind to
poke holes in the webs. If possible, roll the webs onto the pole like
spaghetti onto a fork. Once the protective webs are gone, the natural
predators (insects and wasps) can access the worms and kill them. The
denuded branches are rarely killed by defoliation--leave them alone,
and next year (or later this year) they will probably come back.

If you are seeing a particularly bad outbreak, you can control with Bt
(Bacillus thuringiensis), which is sprayed onto the leaves. When
ingested by the worms, the bacteria kill them. This treatment kills
caterpillars indiscriminately--i.e., not only the bagworms, but other
moth and butterfly larvae may be affected. Spray as a last resort.

for more info about proper tree are, visit www.treesaregood.com

Keith Babberney
ISA Certified Arborist #TX-0236AT