Bayer
has launched a new unique patent protected biological nematode control to help
greenkeepers and groundsmen to maintain quality playing surfaces.
Harmonix Tri-Nema brings together the latest nematode technology to effectively tackle
leatherjackets and chafer grubs.
Neil
Pettican, Bayer head of sales, says the unique solution targets the damaging
pests during two critical periods of the greenkeeping season. The treatment
contains three specifically selected nematode species, which each use a
different method to control turf pests.
“Additionally,
they become more aggressive as they try to out compete each other to become the
dominant species, increasing the effectiveness of the application and its
capability to control the pests.
“Over
recent years, chafer grub and leatherjacket populations have been on the rise,
resulting in significant damage to turf playing surfaces. But Harmonix Tri-Nema
provides one solution with three different modes of activity.
“Collectively
the three species provide more effective distribution through the soil profile,
leading to more consistent results,” he says.
“With
regulatory changes putting pressure on chemical solutions, alternative options
will be fundamental in maintaining high quality turf. However, this nematode
control solution will slot into an integrated approach, while helping reduce
pesticide applications and therefore resistance.”
Neil
explains that both chafer grubs and leatherjackets have different peak seasons,
due to their lifecycles, so it’s important to monitor for activity carefully to
ensure infestations are identified and treated at the right timing, before
significant damage is done.
“Chafer
grubs emerge from their eggs in the summer months, so treatment for this pest
is recommended between May and August.
However,
to achieve successful control over leatherjackets, the best application window
is between late August and November, whilst the leatherjackets are still at a
juvenile stage, ,” he says.
He
adds that it is important to consider application conditions as well as
recommended timings.
“Our
research for both chafer grub and leatherjacket control shows that for heavy
infestations the best results are seen when 250,000 nematodes/m2 are applied to the affected area, with a
follow up treatment two weeks later. This maximises the ability for the
nematodes to penetrate, attach and infect newly hatched eggs.
“For
areas that are not severely infested, one application at the normal rate of
500,000 nematodes per m2 would be
sufficient.”
Neil
adds that it’s also important to apply nematodes in moist conditions, and in
low light so ideally this should be early in the morning or the evening when
soil temperatures are above 12⁰C.
“With
limited chemical options available for controlling these pests, this new
biological solution provides an alternative tool for greenkeepers that fits
within an integrated approach.
“It
helps avoid turf damage from pests during peak seasons, improving turf
consistency and playability,” he concludes.
For more information, head to stand 338 in the green hall at BTME and speak to the Turf Solutions Team.
