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YELLOW
& BLUE STICKY TRAPS
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Concerns
over the use of chemical insecticides in crops grown
in glasshouses and plastic tunnels, as well as resistance
problems amongst the pests themselves, has fuelled
the search for economic alternative products that
are compatible with the increasing use of predators,
parasites, beneficial insects and pollinators.
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University
research has demonstrated that certain insect pests
are attracted to specific wavelengths of light within
the yellow and blue spectra.
Agrisense-BCS
Ltd has matched this spectral sensitivity in both
plastic and paper traps coated with a user-friendly
no-mess 'dry touch' glue. These traps are available
in various sizes, both individually wrapped or in
continuous rolls of standard widths and lengths. The
glue is UV light stable, unaffected by water and has
excellent properties enabling the retention of large
numbers of insect pests.
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The
yellow traps
are recommended for whiteflies, the winged forms
of aphids, scarids and certain other leafhoppers
and leafminers. Click
here for more information |
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The
blue traps
are used mainly for the detection and monitoring
of thrip species (including western flower thrips
- Frankliniellia occidentailis). Click
here for more information |
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The
traps or rolls should be placed in the crop immediately
after crop emergence or transplanting before insect pest
populations start to build up. Where sufficient traps are
installed the build up of pest levels may be greatly reduced
allowing a delay in the introduction of beneficials and
a reduction in the total number of introductions.
Since
the traps emit no chemical and rely on colour to attract
pests they may be left in place right up to harvest, giving
protection throughout the season.
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YELLOW
TRAPS
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Greenhouse
Whitefly |
(Trialeurodes
vaporariorum) |
Tobacco
Whitefly |
(Bemesia
tabaci) |
Leafminer
Flies |
(Liriomyza
spp) |
Mushroom
Flies |
(Sciaridae
& Phoridae spp) |
BLUE
TRAPS
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Western
Flower Thrips |
(Frankliniella
occidentalis) |
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After
removal from the outer packing, the cover papers should
be removed exposing the sticky surfaces. The traps
should be hung just above the crop using the hangers
provided.
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Where
parasitic insects such as Encarsia are used the
traps provide useful monitoring information regarding
pest levels for introduction. The traps can also reinforce
biological
control when pest populations develop more rapidly than
their predators and parasites e.g. in cool conditions.
Some growers have utilised several traps fixed to a
moveable stand. When placed close to where crops are
disturbed during routine crop management procedures,
significant increases in pest capture are achieved,
particularly of whiteflies. Click
here for more information |
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Using
the rolls above the crop horizontally rather than
vertically with the coloured sticky surface facing
downwards minimises chance capture of predators/parasites.
Maxi
Yellow and Blue Sticky Rolls are coated both sides
with glue and are best used bung horizontally above
the crop, around the sides of the greenhouse or
between rows. Click
here for more information
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NO
CROP OR HANDLING RESTRICTIONS
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There
are no species or crop varieties, adversely effected
by the use of Yellow/Blue traps. As the surfaces of
the traps and rolls are coated with an aggressive glue
they should be kept clear of foliage and flowers and
away from people and pets. |
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