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Bay of Plenty Greenkeeper’s Association
Field Day
Date: Thursday 26th September 2019
Venue: Omanu Bowling Club
Time: 11am
Attendance: As per attendance sheet. Clubs represented were:
• Rotorua, Arawa, Tauranga Domain, Te Puke, Tauranga South, Matua, Omanu, Mount
Maunganui, Ngongotaha,
Welcome: Greg Gould, President BOP Greenkeepers’ Association welcomed David Ormsby,
NZSTI Agronomist, Hamilton, those greenkeepers / superintendents from the clubs that were
present, Martin Christensen, Life Member, Bowls NZ and Manu Recreational Services. He also
thanked the Omanu Bowling Club for approval to use their clubroom for the field day today
(26.9.2019).
Apologies: Peter Kelly (Reporoa), John McGregor (Ngongotaha), Mike Spring (Matua), Willie
Burmeister (Omokoroa).
Summary of Facts:
• Standard Grow Safe course: To be held in Hamilton Thursday 10th October 2019. Cost
is $385 pp (incl. GST). Contact David 07 846 7698 or cell 027 442 8053 to book place.
• Non Compliance in use of agri-chemicals: Bowls NZ and the NZ Greenkeeping
Association are concerned that clubs are not complying with the regulations regarding
the use of agri-chemicals. David emailed a copy of an Agrichemical compliance
checklist he developed a day after the Field Day presentation for distribution to BOP
Greenkeepers. Association secretary, Rob Beckett will forward to all BOP Bowling
Clubs soonest. David states completion of the checklist will enable each bowling club
to identify whether their club meets the current minimum (as of July 2019)
compliance requirements for managing hazardous substances (including
agrichemicals). Answering No for the requirement in the survey means the issue
needs to be corrected.
David couldn’t stress enough the need for clubs to carry out completion of the survey
and to deal with any issues as soon as possible. He stated bowling clubs and golf clubs
are generally ‘under the radar’ but if they are visible from the main road or arterial
route or thereabouts they are more likely to be visited than clubs off the beaten track.
But the potential for clubs to receive an unexpected visit cannot be taken for granted.
Of concern is the number of clubs not displaying sufficient signage e.g. during spraying
of greens. Any inspector could request to see the greenkeeper’s spray plan / diary,
whether old product has been removed / disposed of through approved methods and
agencies that are approved to handle this.
Secretary’s additional notes: Club committees have a ‘duty of care’ – broad
overarching duty that includes, but is not limited to, a business having effective
practices in place for:
• Providing & maintaining a work environment that is without risks to health
& safety
• Providing & maintaining safe plant & structures
• Providing & maintaining safe systems of work
1
• Ensuring the safe use, handling & storage of plant, structures & substances
• Providing adequate facilities for the welfare of workers when doing work
for your business, including ensuring access to those facilities
• Maintaining the health of workers & the conditions at the workplace for the
purpose of preventing injury or illness of workers when doing work for your
business.
Club committees: Please ensure the Agrichemical compliance checklist survey is completed
to deal with any issues needing correction.
Greenkeeper challenges:
• Seed yield – clubs report this has been poor this year. Arawa harvested almost n
bulbils this year.
• Cotula weevil – Omanu
• Green rolling – Not in heat of day. Opinion given that rolling only serves purpose
approximately 1 ½ hours. Some clubs changing roll up times to morning rather than
afternoon to maintain integrity of greens surface.
Other items:
• Auckland clubs with artificial surfaces and covers overhead working well.
• Evening and morning bowls popular in the Waikato.
• Matua – Proposed two greens to be artificial now changed to having only one artificial.
• Tauranga Domain – looking to play evening bowls under lights.
• Research – Martin asked if any projects are likely to arise that would be beneficial to
the bowls fraternity on & off the green? Nothing considered as yet.
• Greenkeeper remuneration / volunteerism – Some clubs have two or three
volunteers who attend to upkeep of their club greens. Some may have a person who
is also on the club committee responsible for attending to the green(s). Some have
full time employment positions elsewhere and in their spare time attend to the club
green(s). Specialisation of the position with increased compliances & health & safety
legislation weighing heavily on those volunteers offering time to maintain, renovate
and prepare greens for tournaments. Reality is clubs employing a part time
greenkeeper who supplements his / her income by greenkeeping two or so clubs.
Another example is clubs contracting the greenkeeping service to private contractors /
contracting firms. The downside is clubs having to pay for the greenkeeping services
from a number of funding sources that adds extra risk to the viability of a club.
Clubs in order to survive having to change to a more business-like model to manage
finances and include greenkeeping remuneration. Steve Beel, Community
Development Officer, Midlands, Bowls NZ provides guidance and support in this area.
• Field Day attendance: Some of the reasons Greenkeepers /
Superintendents aren’t able to attend field days are due to being overseas, paid
employment, preparing greens for tournament(s), not aware of field day. Nine of
twenty clubs were present at the Field Day today.
For Club consideration: Bowls NZ funds one field day / per season. Therefore, should
a club greenkeeper / superintendent not be available to attend the field day is it
prudent for a club to send a club committee representative?
Nationals March 2020:
• Head Quarters is Mount Maunganui.
• To be held end of February – Early March?
2
• Tauranga clubs primarily where games will be played but may include
Rotorua. Eleven greens to be used?
• Maurice Symes heading greens inspection. Uncertain as to whether he
has visited clubs yet.
• Helen Stallard visited Rotorua earlier in week.
• Greens to run at 16 seconds.
Omanu greens walk about: Field Day attendees walked over one of the Omanu greens to
observe green presentation and to ask questions.
Closure of Meeting: 12.55pm
Rob Beckett
Secretary / Treasurer
BOP Greenkeepers Association
Enclosures:
1. 2019-2020 Field Day Notes – Nationals (Labosport & NZST Institute)
2. 2019-2020 Field Day Notes – Irrigation Management (Labosport & NZST Institute)
3. 2019-2020 Field Day Notes – Agrichemical Compliance Checklist (Labosport & NZST
Institute)
3
2019 - 2020 FIELD DAY NOTES
1. AGRICHEMICAL COMPLIANCE CHECKLIST
Completing the following checklist will enable your bowling club to identify whether you meet
current minimum (as of July 2019) compliance requirements for managing hazardous substances
(including agrichemicals). If you answer No for the requirement to any question in this survey the
issue needs to be corrected.
Item Requirement Yes /No
TRAINING
1. We manage Class Your spray operator (green keeper) must have a current Approved
6.1 A & 6.1B Handler Certificate or Certified Handler Certificate.
chemicals e.g.
chlorothalonil,
Vydate,
Fenamiphos etc.
2. We manage Class Your spray operator (green keeper) must have one of the following
9.1A, 9.2A, 9.3A or qualifications; a current Approved Handler Certificate, Introductory
9.4A Growsafe Certificate or the new Standard Growsafe Certificate.
agrichemicals?
3. We manage other Club must adequately train staff in the Health risks and safety issues
classes of associated with the hazardous substances they work with;
agrichemicals
How to safely use, handle, store and dispose of hazardous
substances; Safe use of equipment, including PPE; Their
obligations under the regulations; Actions to take in an
emergency involving hazardous substances.
A basic Growsafe Certificate is suggested.
4. Training register Our club has a training register, which summarises all training
(formal / informal) and expiry dates (as appropriate) for training
programmes for each worker (employee / volunteer).
1 © 2019, NZ Sports Turf Institute Limited
DOCUMENTATION
Item Requirement Yes /No
1. Inventory a) Our Club has an inventory (manifest) for all hazardous
substances held e.g.
http://www.hazardoussubstances.govt.nz/calculator
b) We have 2 copies of the inventory – 1 in the clubhouse and 1 in
the green keeper’s shed.
2. Safety data sheets, a) We have a Safety data sheet (or equivalent) for all Hazardous
HazNote, Product substances held.
Safety Card) b) We have Hazardous substances that we can no longer obtain
Safety Data Sheets for.
c) For each of these products our club has:
i. Banned products (e.g. endosulphan, DDT etc.)
have been disposed of using a registered
hazardous substances disposal company.
ii. Products removed from the market (e.g. Benlate,
Calirus) we will use these substances within 3
months or dispose of them using a registered
hazardous substances disposal company.
3. Spray diary a) We maintain a spray diary for all Hazardous substance
applications.
b) The spray diary records all the following information; Product
name (and HSNO/ HSR approval number – an EPA requirement);
Date and time of the application; Amount of product applied;
Location of the application; Description of the wind speed and
wind direction; Name of applicator.
c) Additionally for Ecotoxic class 9.1A, 9.2A, 9.3A or 9.4A pesticide
or plant growth regulator (agrichemical), or Organophosphate
or carbamate insecticide we record details of the measures
taken to ensure there are no adverse effects beyond the
boundary of the application property into adjoining properties
or sensitive areas.
d) We retain records for at least 3 years.
4. Tracking records a) We hold / manage Class 6.1 A or 6.1 B substances
b) We maintain tracking records that include all the following
information: Name, position, contact detail of applicator
including Certified Handler Certificate details if applicable;
Name and quantity of substance; Location stored; Details of
transfer; Details of disposal / usage.
c) We retain records for at least 3 years.
5. Spray Plan a) We have a Spray Plan.
b) We review the Spray Plan annually.
2 © 2019, NZ Sports Turf Institute Limited
LABELLING & SIGNAGE
Item Requirement Yes /No
1. Labelling a) All our Hazardous substances have a legible label (in English).
b) Any product that has been decanted into another container has
a copy of the original label
c) None of our Hazardous substances have been decanted into
containers that originally held food stuffs.
2. Signage a) We place signs out when applying Hazardous substances.
b) Signs stay in place until either the restricted entry interval or
contact re-entry period has passed.
c) We have HAZCHEM 2WE & No Smoking signs on the Chemical
storage shed
d) We also have HAZCHEM 2WE & No Smoking signs where
chemicals are stored in a cupboard located in a shed.
e) These signs are visible from the normal lines of approach.
f) We hold more than the following minimum quantities for
specified Hazardous substances and have installed appropriate
additional signage (Table below)
g) Additional signage meets the following requirements:
i. Advise that the Hazardous substance is present.
ii. Describe the general type of hazard pertaining to
each product.
iii. Describe the precautions to safely manage the
substance.
iv. Advise the action to be taken in and emergency.
v. Be easily understood.
vi. Be easily read from 10m away, under varying
conditions.
Hazard Classification Quantity – triggers additional
signage
3.1A 50 Kg/L
6.1A
8.2A
9.1A, 9.2A, 9.3A, 9.4A 100 Kg/L
3.1B 250 Kg/L
6.1B
8.2B
3.1C 1000 Kg/L
6.1C
8.1A, 8.2C, 8.3A
9.1B, 9.1C, 9.2B, 9.2C, 9.3B,
9.4B, 9.4C
3 © 2019, NZ Sports Turf Institute Limited
STORAGE
Item Requirement Yes /No
1. Location a) Away from ignition sources (fuels, incinerators, flammable
materials).
b) Away from environmentally sensitive areas (waterways, drain
outlets, residential properties, public areas).
c) Surrounding area clear of combustible vegetation and refuse by
at least 3m.
2. Construction a) Appropriate spill retention measures are provided such as fully
bunded impervious floor or drip trays (refer secondary
containment below).
b) Adequate size - large enough to store all agrichemicals held on
site.
c) Ventilated.
d) Good lighting.
3. Physical attributes a) Shelves and floor materials are built of non-absorbent materials.
b) Vermin proof.
4. Security a) Secure and able to be locked – no unauthorised access.
b) Store is under the control of:
i. GROWSAFE Standard Certificate - Class 9.1A, 9.2A,
9.3A or 9.4A substances.
ii. Certified Handler Certificate – Class 6.1A, 6.1B
c) Note: If your agrichemical shed contains 6.1A, 6.1B substances
and you do not have a current Approved Handler Certificate /
Certified Handler Certificate these substances must be either
segregated in a lockable cupboard within the shed or disposed
of.
5. Segregation a) Powder or granular products above liquids.
b) Herbicides, fungicides and insecticides separated.
c) Large liquid containers on or near the floor (20L+).
d) No fuels, seed, fertilisers, lubricants, paints, animal feed, spray
equipment or personal protective gear, including masks &
cartridges (PPE) in the store.
e) Use products on a first in, first out basis.
6. Emergencies a) Spill kit that includes dry absorbent material (zeolite, cat litter or
sand or contaminant pads).
b) 4.5kg dry powder fire extinguisher readily available outside the
store.
c) Emergency procedure sheet that tells people what to do if
something goes wrong (i.e. spill).
d) Additional requirements – we have checked
https://www.hazardoussubstances.govt.nz/media/1058/wsnz_2
510-emergency-response-a4-digital-v3-0-fa-lr.pdf
7. Secondary a) We have checked that the quantities of Hazardous substances
containment held do not exceed the quantities below.
Hazard Classification Quantity – secondary
containment
6.1A, 6.1B & 6.1C 100L
8.2A 100L
9.1A 100L
b) We have more than the stated quantities and have installed
secondary containment.
4 © 2019, NZ Sports Turf Institute Limited
Item Requirement Yes /No
EQUIPMENT & PPE
1. Sprayer Our sprayer is safe, functional, in a sound condition and doesn’t
leak.
2. PPE a) We have provided appropriate PPE and this is in a sound
condition.
b) We have adequately trained our staff in the use of this PPE
equipment.
NZSTI SPORTS TURF ADVISORY TEAM
Auckland Auckland Hamilton
Auckland
Everett Darlington David Ormsby
Alex Glasgow
027 232 4545 Tara McLeod 07 846 7698
0274 962 486
edarlington@nzsti.org.nz 027 521 4954 0274 428 053
aglasgow@nzsti.org.nz
tmcleod@nzsti.org.nz dormsby@nzsti.org.nz
Palmerston North Palmerston North Christchurch Dunedin
Brendan Hannan Andrew Mitchell Chris Gribben David Howard
06 355 7024 06 355 7027 06 355 7026 03 477 7333
0274 428 046 027 662 0148 027 552 4488 0274 462 875
bhannan@nzsti.org.nz amithell@nzsti.org.nz cgribben@nzsti.org.nz dhoward@nzsti.org.nz
5 © 2019, NZ Sports Turf Institute Limited
2019 - 2020 FIELD DAY NOTES – IRRIGATION
MANAGEMENT
SAMPLING GREENS
Water is a precious resource and for many clubs a significant cost.
To use water effectively and thereby reduce costs to the club you need to ensure:
1. You have an active monitoring procedure in place to determine current moisture status
2. You act on your observations / information
3. Your irrigation system is regularly checked to ensure it is set up correctly.
MONITORING SOIL MOISTURE CONTENT
SAMPLING
Where do I sample?
Typically you would take 1 – 2 plugs or moisture measurements:
from an average area
any known dry areas (e.g. in front of club house, ends, centre of the green, nematode areas,
fairy rings)
How frequently
This depends on how extreme the weather is. Typically, sampling once – twice a week will be
adequate to monitor soil moisture levels. Normally you would do this early in the week (Monday /
Tuesday) and again prior to weekend.
The more frequent you sample, the more precise your water management can be.
1 © 2019, NZ Sports Turf Institute Limited
OPTIONS
Soil samples – what to look for
Volumetric Moisture Appearance of a soil core Appearance of turf
Content
40%+ Water will ooze out of thatch when Cotula will be growing rapidly and lush
squeezed green.
Too wet
Soil will be very dark
(common range on Soil will be easily mouldable when
many bowling clubs squeezed.
over summer) Soil will feel wet
Soil surface will shine when rubbed and
feel quite greasy
20 – 30% Soil will have a medium brown colour Cotula will unless it is humid, will
(see photos below). becoming increasingly bronze in colour.
Ideal range
Soil feels cool and damp.
When squeezed soil will tend to
crumble rather than mould like
plasticine.
When plug is rubbed it will have a gritty
feel.
< 20% Soil will be a very light colour Dioca will be bronze and more
Thatch will feel dry susceptible to heat stress. On thatchy
Too dry for most
Soil will be hard to crush greens, dioica is likely to start dying.
bowling greens
Soil will have a powdery feel when Maniototo will take on a silvery look and
rubbed when the leaves are examined they will
be hairy.
Starweed plants – leaves will start to
curl upwards and plants start to move
(rock).
Colour of soil
You have to become familiar with your soil.
As a general rule the darker the soil the wetter it is.
How cool / damp does the soil feel?
The cooler the soil the wetter it is.
Does the soil feel greasy when rubbed (too wet) gritty (about right) or very dusty or powdery (too
dry)
2 © 2019, NZ Sports Turf Institute Limited17% Volumetric moisture content 30% Volumetric moisture content 55 – 60% Volumetric moisture
Too dry About right content – the norm during
summer and Too wet
How soft / hard is the soil?
Squeeze the soil to determine how soft or hard it is.
Does the soil mould like plasticine when squeezed – Too wet
Does the soil crumble into distinct aggregates when squeezed – About right
Soil is very hard to crush – too dry
44% Volumetric moisture content. Soil is easily 10% moisture content. Soil is very hard and
mouldable, surface of plug is easy to ‘polish’ plug difficult to crush.
feels wet, often moisture can be seen in the thatch.
3 © 2019, NZ Sports Turf Institute LimitedHow deep does the moisture extend to?
Observe how deep the moisture extends to – in other words does the dark colouration extend 10 –
20mm beyond your average root depth.
It is common for areas of the green (particularly the centre) to dry out at depth in hot dry summers
or during January/ February.
How to calibrate yourself / what to look for
1. During spring after a period of rain and a day after the rain stops, take a plug from the green.
Observe the colour of the soil, how it feels, what it’s like when you crush it – maybe even
take a photo for future reference. Soil is at Field Capacity = the water reservoir is full
2. During spring around November when drier weather occurs (i.e. green isn’t under any real
pressure), hold off watering for a couple of days.
Take plugs daily and observed change in soil colour, how easy the soil is to crush.
3. Don’t put your green at risk, but watch known dry areas. When you see obvious foot printing
you have generally reached your lower moisture level. Again take a plug and have a look at
the soil and take another reference photo.
Now you have a basis for when irrigation is required.
Moisture meter
An accurate soil moisture meter that provides This type of moisture meter is cheaper, but less
actual soil moisture content. accurate.
Once you purchase a moisture meter you need to establish the upper moisture level (when you stop
watering) and the lower limit (when you start watering). Some moisture targets are provided above
4 © 2019, NZ Sports Turf Institute Limitedand which are based on the FieldScout moisture meter. For other moisture meters, sample the
green as described for soil sampling, but instead record the soil moisture content.
ACTING ON THE INFORMATION
Having collected this information you need to act on this, i.e. you need to adjust your sprinkler run
times. The big challenge is knowing how long to water for.
MOISTURE METERS
Where you have access to a quality meter you can determine your irrigation run time reasonably
accurately as follows:
1. Late in the afternoon measure the soil moisture content and write it down. Note down the
positions where you took the readings.
Note down how long the irrigation system will run for that night e.g. 10minutes. Given
bowling greens have part sprinklers, the run time should be based on a 3600 sprinkler, ie the
run time for part sprinklers should have been adjusted (reduced) relative to a full circle
sprinkler.
2. First thing the next morning measure the soil moisture content in similar test positions and
again write this down.
3. Repeat this process a few times.
4. You will quickly see that a given runtime will raise soil moisture by a given %.
5. As you know the lower moisture level and where you need to get to you can get a lot more
accurate in setting your irrigation run time.
Green: No.1
Upper moisture level required: 35% Volumetric moisture content
Lower moisture level: 25% Volumetric moisture content
Date Average Average upper Sprinkler (Average upper % moisture
lower moisture level run time on moisture level - increase /min
moisture level (after irrigation) Green 1 lower level) runtime
Sprinkler run time
(before
(min)
irrigation)
10 February 25% 30% 10min (30-25) 0.5%/min
10
15 February 24% 31% 10min (31-24) 0.7%/min
10
Conclusion: On first green this sprinkler system raises moisture content in the greens by 5 – 7% for every
10 minute run time or 0.5 – 0.7mm/minute.
SOIL SAMPLES
5 © 2019, NZ Sports Turf Institute LimitedWith soil samples, the process described above will provide an estimate. In this case you need to
observe the change in colour of the soil, i.e. apply enough water until soil is dark and then let it dry
down until the lower level (lighter soil colour) is reached.
IRRIGATION PRACTISES
1. Watering programmes
Many clubs don’t like changing their controller. An option is to set up two programmes:
Programme A Short watering (2 – 3 rotations of sprinklers – approximately 6 minutes)
Note: Run sprinklers to see how long it takes for sprinklers to complete a full rotation.
Programme B Long watering number of sprinkler rotations depends on how long it takes
before ponding occurs.
Note: Run sprinklers and record how long it takes before you observe ponding on the green.
This becomes your maximum watering time. Where you want more water you will need to
apply repeat cycles.
Now you have an easy way to complete a light or deeper watering.
2. Hand watering
No irrigation system is perfect. To combat this most turf managers base irrigation requirements
on the dryest area. The result is that other areas of the greens are over-watered.
To save water consider:
Identify your dry (at risk) areas
Base your irrigation on supplying adequate water via automatic irrigation to the wet areas
and top up dry areas with hand watering, soaker hose.
SPRINKLER SYSTEM CHECKLIST
During the summer aim to check the irrigation system at least fortnightly (preferably weekly). The
main checks are summarised below.
Checks Common problems Frequency Yes/No
Sprinkler type & On any given irrigation station best practise Too start the season
brand requires: and when a sprinkler
The same sprinkler brand and model should be is changed.
used, i.e. each sprinkler brand / model has
differing operating (hydraulic) characteristics.
All sprinklers have the same operating arc
Nozzles On any given irrigation station, all sprinklers Too start the season
should have the same nozzle size. Note: It is and when a sprinkler
common for nozzle types to be changed on an is changed.
operating station to address dry / wet areas. This
will affect uniformity.
Sprinkler Prior to the start of summer, check to ensure all As part of weekly
orientation sprinklers are perpendicular. check
Rarely an issue on bowls & centre sprinkler is
6 © 2019, NZ Sports Turf Institute LimitedChecks Common problems Frequency Yes/No
most likely to go out of adjustment.
Filters Check all filters (sprinkler, in-line filters) are clean, To start the season
so that water pressure and flow rate isn’t
Water sources
compromised.
other than town
Inline filters (if present) Monthly
supply
Sprinkler depth Check sprinklers (particularly centre sprinkler) are not To start the season
too low, i.e. turf plinth boards etc. do not affect the
sprinkler jet of water.
Sprinkler Sprinklers are operating correctly (at the right speed, Weekly
operation arcs are correctly set, no leaks are present etc.).
Obstructions There are no obstructions (e.g. score boards, rink Weekly
markers etc.) that affect the sprinkler jet of water.
Solenoids All solenoids are operating correctly, (i.e. sprinklers Weekly
turn off/on ad don’t leak) and no leaks are occurring.
NZSTI SPORTS TURF ADVISORY TEAM
Auckland Auckland Hamilton
Auckland
Everett Darlington David Ormsby
Alex Glasgow Tara McLeod
027 232 4545 07 846 7698
0274 962 486 027 597 2755
edarlington@nzsti.org.nz 0274 428 053
aglasgow@nzsti.org.nz tmcleod@nzsti.org.nz
dormsby@nzsti.org.nz
Palmerston North Palmerston North Christchurch Dunedin
Brendan Hannan Andrew Mitchell Chris Gribben David Howard
06 355 7024 06 355 7027 06 355 7026 03 477 7333
0274 428 046 027 662 0148 027 552 4488 0274 462 875
bhannan@nzsti.org.nz amithell@nzsti.org.nz cgribben@nzsti.org.nz dhoward@nzsti.org.nz
7 © 2019, NZ Sports Turf Institute Limited2019 - 2020 FIELD DAY NOTES – Nationals
NATIONALS – MARCH 2020
Bay of Plenty (mainly Tauranga and maybe Rotorua) will host the BNZ Nationals during February
2020.
From now until the Nationals the main emphasis should be on maintaining full cover and providing a
quality playing surface.
Key requirements are:
1. Surface is smooth – the main concerns are
a. Any grooves / holes that have not been filled in
b. Starweed (see below)
c. Loss of cover
2. Surface is running at 16 – 17 seconds
3. Surface is drawing uniformly – it is too late to fix levels issues. Emphasis as detailed below is:
a. Loss of cover
b. Patchiness (patches of dioica / or hydrocotyle) can straighten the bowls draw.
Recommendations
Cover
The areas most at risk are the ends and nematode patches:
1. Ends – as a minimum
mow these less frequently – with maniototo once every 7 – 10 days is adequate.
Ideally cut the ends with a second mower (where available) set slightly higher (0.5 –
0.75mm).
Note if you are one of the clubs where the bowl runs into the ditch, rather than
stopping, keeping cotula slightly longer around the ends will reduce the severity of
this.
be vigilant for heat – this is particularly important on those clubs that have a lot of
concrete right up to the edge of the greens. Be careful when temperatures get into
1 © 2019, NZ Sports Turf Institute Limitedthe mid 20’s. When green is in play concrete and ends may require syringing around
12.00, 3.00 and end of play.
if ends start to thin apply a foliar fertiliser for a boom width around the greens.
2. Nematodes
Those clubs that have a history with nematodes (Tauranga South, Te Puke, Omanu)
are most susceptible the following points are recommended:
o Be very vigilant for heat stress – it is heat and wear that kills the cotula not
the nematodes (the latter just destroys the root system). These patches
need hand watering.
o Do start a programme (3 – 4 weekly) applying seaweed
o Consider applying phosphite with seaweed up to Christmas – e.g. TKO
phosphite at 1L/green.
o Do when patches start to yellow or cover starts to thin, apply a foliar
fertiliser. Make sure the product won’t burn when left on the leaf. Apply
ideally in the evening and leave on the leaf, i.e. so it is absorbed through the
leaf.
o In serious outbreaks, in the week prior to Christmas apply fenamiphos e.g.
Nematak at 2.7L/green. Do:
i. Notify all adjacent neighbours at least 48 hours prior to spraying.
ii. Spike green to 20mm before spraying
iii. Ideally the day prior to spraying apply a wetting agent and wash in.
iv. On the morning of spraying irrigate the green so it is good and wet,
but ponding is not occurring.
v. Apply fenamiphos and wash in with at least 10mm of water applied
as short pulses.
vi. Close green to play for at least 5 days after application.
Weeds
Be careful that you don’t get so hung up on weeds that you compromise your cover. Cover is
everything!
Hydrocotyle – providing green is in good heart and you haven’t sown bulbils you can apply Duplosan
KV. Preferably complete spraying from October onwards.
Starweed – the safest option is once maniototo is in summer leaf (probably late November/early
December) apply Kerb at 500mls/full size green. Wash in with at least 16mm (equivalent to 1 hour
run time of your sprinklers – approx.) applied as short pulse which prevent ponding. This can create
a bobbly surface whilst maniototo grows into the areas left by the dying starweed. You need at least
10 weeks between spraying with Kerb and your Nationals event.
Tournament
I suggest:
1. Most of you green keepers are very capable bowlers. If you not sure ask a better bowler
whose opinion you respect.
Once the green is mown,
2 © 2019, NZ Sports Turf Institute LimitedFirstly deliver a jack down each rink – and observe whether it runs smoothly. This will mainly
be a problem on starweed and indicates the greens need additional grooming – see below.
Secondly deliver a narrow draw bowl down each rink – again you are looking as whether
bowl runs true (doesn’t chatter) and whether the bowl come back to centre of the rink.
Secondly particularly on those greens with large patches (dioica, hydrocotyle), i.e. greater
than 350mm dia determine whether they are straightening the bowl. Also note the green
speed – unless stated otherwise a speed of 16 – 17 seconds is recommended.
Note: Mount Maunganui – headquarters – given your site is prone to wind, take care not to
get greens too fast (above 17 seconds) – the faster the greens the more wind will affect
draw.
2. If your green is bobbly (due to starweed) or has inconsistent draw due to patchiness do:
a. Access a groomer reel (or mower rake if you can’t get a grooming reel) and double
groom the green 6 and 2 weeks prior to the event.
b. Set the groomer reel so that it is working within the turf canopy.
c. Don’t groom within 2 m of the ends or any known weak areas
3. Greens are too slow
If your green speed is marginal, i.e. 15 – 16 seconds approximately 10 days prior to the event
increase your mowing frequency (excluding ends) to at least 3 – 4 times/week. 5 days prior
to the event, mow daily.
If required, 1 – 2 day prior to event mow twice daily.
4. Greens are patchy
Where you have patches of hydrocotyle / dioica;
a. 1 – 2 days prior to the event and during the event, mow these patches first, then mow
the remainder of the green.
b. You can also try, brushing patches, 1 – 2 days prior to event, followed by mowing.
5. Disease
4 – 7 days prior to the event apply azoxystrobin (eg Taser) at 300mls/green.
6. Fertiliser
1 – 3 days prior to the event apply Liquid potash at 2.5L/green
Good luck – any questions – give me a call.
3 © 2019, NZ Sports Turf Institute Limited(Greenkeepers)
Venue:
Omokoroa Bowling Club
Starts:
10am
Date:
Wednesday 9th October 2019
Triples: $30.00 / team.
Limited to Green-keepers & helpers.
Note! 4 games of 1 hour. Bring own lunch.
Come & enjoy a day out with other green-keepers
If you cannot form a triples team single entries will
be accepted & team(s) made up from them.
Ask your service providers to join us
Entries:
Contact Rob Beckett 021 022 74515
Or club (07) 357 4332. Email: nbcbowls@xtra.co.nz
Mail address: P O Box 192, Ngongotaha, Rotorua 3041You can also read
