One simple
solution controls
both pests
The advantages
of using
®
Lawn Grub Killer
4 Provides contact and systemic control
4 One application gives season long control
Bayer Garden’s Provado Lawn Grub Killer is a market
leading product in Lawn Grub Control. Formulated as
a simple-to-use, water-on, systemic insecticide, you
can now ensure that your lawn remains free from the
disfiguring die-back caused by these destructive insects.
4 Can be applied preventively
4 Easy to apply with no follow up action needed
Stop them BEFORE they start!
Provado Lawn Grub Killer is best used as a preventative
control and if applied at the right time, one treatment
is sufficient for year-round protection, when applied
at the correct time of year (see pest life cycle section).
Once patches or yellowing and browning of the lawn is
apparent, much of the damage has already been done,
but do not despair! You can still stop lawn grubs by
applying Provado Lawn Grub Killer. The grubs will
stop feeding and further infestation will be prevented.
In areas of severe damage, re-seeding and watering
to aid recovery is recommended.
What’s
eating
your
lawn?
Bayer Garden
230 Cambridge Science Park
Milton Road, Cambridge CB4 0WB
ONE PACK
TREATS
100sqm
A part of Bayer CropScience Limited
For more information please e-mail:
[email protected] or telephone: 0845 345 4100
Alternatively, visit our website:
www.bayergarden.co.uk
for further advice, hints and tips
Provado Lawn Grub Killer contains imidacloprid. Use insecticides safely. Always read the
label and product information before use. For further product information including
warning phrases and symbols refer to product label.
Provado is a registered trade mark of Bayer CropScience Limited
Chafer grub
and adult.
Active in May
and June.
Leatherjacket larvae
and adult
(Daddy Long Legs).
Active in
August to
September.
®
Your questions answered...
Does your lawn look like this?
Yellow, brown or dead patches on your precious lawn? Don’t automatically
blame your kids, the pets or lack of rain. The most likely culprits may be
hidden beneath your turf!
Leatherjackets and Chafer grubs are insidious pests that like to munch their
way through the root system of your lawn, killing your grass blade by blade.
By the time you see visible signs of their activities much of the damage will
have already been done.
The most likely cause of this damage...
Leatherjackets
Have you seen ‘Daddy Long Legs’ fluttering around in late summer and
autumn? Also known as Crane flies, these spindly-legged insects have
developed from the very larvae that have probably been
tucking into the roots of your lawn causing the
unsightly damage you’ve seen.
These grubs can be found in heavy, clay soils.
Commonly known as ‘Leatherjackets’, these rootchewing grubs have an enormous appetite and can
ruin your lawn. Birds can add to the lawn damage as
they probe the turf looking for the grubs.
Life cycle
Late summer/early autumn
Adult Crane flies emerge from the soil to
mate. Each female can lay up to 300 eggs
in the grass. Two weeks later the eggs
hatch and the larvae (Leatherjackets)
begin feeding on the roots and stems
just below the surface of the soil.
Winter
The larvae may remain dormant in the
soil throughout the coldest months but
resume feeding as soon as the soil
warms up in the spring.
Chafer grubs
Chafer grubs are the larvae of certain types of Chafer beetle, also known as
May or June bugs. You may have heard these beetles clatter against your
window on warm summer evenings, attracted by the
lights. These larvae feed voraciously on grass roots and
their distinctive creamy colour, red head and three pairs
of legs make them easily identifiable. Chafer grubs
are commonly found in light sandy or chalky soils. As
with Leatherjackets, lawn damage is caused not just
by the grubs themselves but by birds and even large
mammals such as foxes and badgers, digging up the
turf to feast on the grubs.
Life cycle
Late spring/early summer
Damage becomes more noticeable
as the larvae are now bigger and
more voracious. They can grow up
to 40mm (about 1.5”).
June to August
The Leatherjackets become fully mature
by June, becoming inactive and pupating
in August just under the surface of the
lawn, to emerge as adult Crane flies
thus beginning the cycle again.
Find out more by visiting www.lawnkiller.com
May to June
Adult beetles emerge from the soil. They
feed on fruit, leaves and flowers and lay
batches of eggs each night over a number
of weeks. Eggs hatch in 4 to 6 weeks
and the Chafer grubs begin to feed on
the roots of the grass during the
summer months.
Winter
By winter the larvae become fully
developed and burrow deep into the soil
to hibernate. As soon as the soil warms up
they resume feeding.
With fully mature grubs as large
as 40mm (about 1.5”) long these
infestations can result in a great deal
of damage, compounded by the harm
to the lawn caused by the predators
that feed upon them.
Late spring
Mature larvae become inactive, pupating
in late spring, with the adult beetles
emerging around May/June to start
the life cycle once more.
Q Is the product easy to use?
A Yes, just use one sachet in a watering can to treat 10sqm and water onto
the lawn as directed on the pack.
Q When should I use this treatment?
A Apply during the egg laying period; for Leatherjackets, ideally mid August to
September and for Chafer grubs, May and June. If both pests are present,
treat in late June or July for best results.
Q How many times a year will I need to treat?
A One treatment per season is recommended.
Q How quickly does Provado Lawn Grub Killer work?
A As soon as it is applied! Its systemic action distributes the active ingredient
(imidacloprid) throughout the lawn root system so that when any lawn grub
ingests a piece of root it will stop feeding immediately and subsequently
die. Equally imidacloprid will be absorbed directly from the soil by any
grubs present at the time of treatment.
Q The instructions tell me to use this product preventively, can it be
used curatively?
A Provado Lawn Grub Killer is most effective when applied during
the egg laying period. Leaving treatment until the later stages of
development means there could be significant damage of the lawn
and it is unlikely to be effective.
Q What conditions do Leatherjackets and Chafer grubs like best?
A Both grubs thrive in most British soil conditions; Chafer grubs favour
sandy, chalky soils whereas the heaviest infestations of Leatherjackets are
generally found in damp or clay soils. If you have spotted Daddy Long Legs
in the garden during the autumn then this is a sign they will have been
laying eggs in your lawn.
Q What are the ideal conditions for best results?
A As with most lawn treatments, avoid very dry or waterlogged soil
conditions. Early evenings are usually best.
Q This treatment is for the larval stage of the pests, do the adults do
any damage?
A Adult Chafer beetles do feed on the foliage of ornamental plants but the
damage to these is rarely noticeable.
Q During treatment with Provado Lawn Grub Killer, will I need to keep my
children and pets off the lawn?
A Keep children and pets away from treated areas until the spray has dried.
There is then no need to exclude them provided you have used the product
as directed on the pack.
Q Can I allow my rabbit to feed on the lawn once I have applied
this product?
A As a precaution animals such as rabbits and guinea pigs should not be
allowed to graze the treated area for 4 weeks and mowing clippings from
the lawn should not be used as forage.
Q The label says ‘high risk to bees’, what does this mean?
A Use the product only as directed on the label to avoid harm to bees. Mow
the lawn before treating to remove flowering weeds and apply in the early
evening when fewer bees are around. Wait until bulbs in the lawn have
finished flowering before treating.
Q Do I need to take any special steps after I have treated my lawn?
A Once the product has been watered in there is no need to change your
normal lawn maintenance programme i.e. regular mowing, feeding
and weeding.