Home' Waiheke Weekender : 12 July 2012 Contents Waiheke Weekender 17
12 July 2012
June was a beautiful month and kind
to us gardeners in that we had several
frosts in a row, which will have had
some effect on the bug population
that will be causing us grief come
spring. The frosts will have killed
some of the eggs and hibernating
insects and fungal spores, but not
all I am afraid to say, so gardeners
should be taking the time to do a
good winter clean up. It is advisable
to do several sprays between now
You will be pruning your roses
during the next six weeks, so spray now with liquid copper and liquid
sulphur. Generally you should not mix these together, but people do
take short cuts and if you do, make sure you have some water in the
spray bottle first before putting the two products together.
Lime sulphur is good to use on roses for fungal disease, but you
have to be very careful with it as it will burn, and if it gets onto
evergreen shrubs it will defoliate the plant.
You should always use a separate spray bottle as the chemical
gets into the plastic and every time you use it, the sulphur will mix
with the product you are using. The way I get round this with good
results is by using Condy’s Crystals. Mix at about a quarter of a
teaspoon to a litre of water and drench the soil with it. It is advisable
to do another good drench in the spring. The solution also works
when put around peach and nectarine trees to treat peach leaf curl.
If you are on the ball, you will also spray your fruit trees several
times with liquid copper.
For those problem insects use Glow. This is an organic insecti-
cide and because it is an emulsion, it smothers the eggs of the insect,
preventing it absorbing oxygen and thus destroying the eggs. It is
especially good for mites although as it is organic and a contact
insecticide, you do need to use regularly to get maximum results. If
using neem oil or granules continue your programme.
If you are happy to use chemicals, Shield and Super Shield are
the ones to be using now. You use the Shield for a couple of sprays
and then do a Super Shield, this is because insects develop immu-
nity to the sprays and they stop working so effectively, a boost of
the Super Shield stops this happening.
As I have said several times before, you need to continue to
spray regularly to keep problem pests at bay.
When pruning your roses, you are looking for three to five strong
branches. Cut them back to a bud that faces outwards on an angle
away from the bud. This means that any moisture runs away from
the bud and does not sit around causing it to rot. Cut out any thin,
weedy and dead branches and any cicada damage that is visible as
diseases and bugs will hide in there. Cicadas do more damage than
you think, especially on fruit trees.
I never give my roses a nitrogen fertiliser. I spray each month
with Magic botanic, Mycorrcin and Perkfection. Next month I
leave out the Perkfection and do this alternately. I have no disease
and few bugs as the roses are so strong and healthy they can resist
being attacked. The foliage is a strong lush green and the flowers
If you are planting new roses, put some Rok Solid in the bottom
of the hole. If your existing roses are looking a little weak, give
them a dressing around the drip line in spring and autumn. The Rok
Solid and my spray programme will really turn your roses around.
One thing about really healthy plants is that they also take up mois-
ture better, especially if you are the type of gardener that works on
the theory of only watering when it rains.
We are having a pruning demo on 14 July from 10am, so if
you have any questions on fruit trees and roses just come in to the
garden centre and ask.
Also Bruce from Fiskars will be here to talk about tools and will
do some sharpening of your secateurs and shears.
Happy gardening, Geoff
‘You will be pruning your roses during the next six
weeks, so spray now with liquid copper and liquid
sulphur. Generally you should not mix these together,
but people do take short cuts and if you do, make
sure you have some water in the spray bottle first
before putting the two products together.’
Geoff Willsher is the manager of Placemakers Garden Centre.
Formerly a regular presenter on Maggie’s Garden Show, he is a
plant expert and welcomes readers’ questions. Drop in and see
him at the garden centre for some sage advice.
In the garden with Geoff
Keeping the bugs at bay
PH 372 0060 OPen 7 days
Mon – Fri 7.30am to 5pm
saturday 8am – 2pm
sunday 9am – 2pm
winter clean up
Hills Garden sprayer
was $4199 now $3495 (until 22 july)
perfecktion super $16.99
stimulates resistance and recovery from
pests and diseases. Organic.
aquaticus Glow $24.95
Organic spraying oil for controlling insects
and diseases such as aphids, scale insects,
mites, mealy bugs and powdery mildew.
liquid copper $16.99
liquid sulpHur $16.99
Organic fungus and disease contro.l
stimulates Mycorrhizal fungi which act as
an extension to the plant’s roots helping to
collect nutrients and moisture. Organic.
MaGic Botanic $16
an organic growth booster for plants,
it makes for much bigger root systems,
stronger and healthier plants.
Rental pRopeRty of the month
For all your property management
requirements call the friendly team:
Or pop in to our office in the village:
147 ocean View Road, oneroa
7 June 2012
$2.00 (Incl GST)
Waiheke’s weekly briefing on local news, current affairs, events and the arts
The scurvy Captain Festus McBoyle
ledhis crew of dastardly pirates on a
swashbuckling adventure toRotoroaIsland
on Sunday as part of this year’s story
Stor y and m ore photos page 20.
Te Huruhi rallies
Much loved cartoonist Jim Storey
dies. Tribute page 5
Go to www.waihekegulfnews.co.nz
or phone Dianne on 372 5055
Special introductory offer
for a one year subscription
direct to your inbox
every Thursday morning
Gulf News is
Gulf News is
Links Archive 5 July 2012 July 19th 2012 Navigation Previous Page Next Page