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Crops |
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Pests of Anthurium |
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General remarks on biological
control in Anthurium |
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General |
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Before introducing beneficials, the greenhouse
and plants should be free of harmful pesticide residues. |
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Before the beginning of your cultivation
discuss with your advisor a plan of approach for the whole season. |
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Scouting
& Monitoring |
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Use yellow
Bug-Scan® sticky traps for (timely) detection of flying insects.
Hang during the heating of the greenhouse min. 20 yellow sticky traps
per ha to detect the first flying insects. |
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Also use yellow
Bug-Scan® sticky traps during the cultivation. Count and register
during minimum the first 10 weeks of your cultivation the different
kinds of flying insects which are captured on the sticky traps. |
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Contact
with beneficials and bumblebees |
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Follow carefully the user’s instructions;
always pay attention to the icons on the packing. If necessary consult
the Icon Guide. |
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Introduce beneficials and bumblebees preferably
early in the morning. |
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If you want to store the beneficials for
a short time, you have to reckon with the storage temperature and
the use by date which are mentioned on the packing. |
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Chemical
corrections |
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If a chemical correction has been inevitable,
use as much as possible selective chemical crop protection products.
Try to apply chemical corrections on local spots. |
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In case of doubt about the side effects
of pesticides, contact your advisor or consult the Side Effects Manual
which is available on www.biobest.be. |
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Biological
control of thrips |
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Amblyseius-Breeding-System
(A.B.S.) (predatory mite Amblyseius cucumeris in sachets) |
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Introduce 2.500 sachets/ha
(in total minimum 500.000 Amblyseius
cucumeris/ha). Repeat this every 4 weeks depending
on the infestation. |
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Introduce in hot spots 1 sachet/2
m² or disperse weekly 100 Amblyseius
cucumeris/m². |
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Remark: Pay attention to the occurrence
of Echinothrips (black thrips with white line). The predatory
mites control insufficiently this thrips species. |
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Warning:
The products Amblyseius-Breeding-System (ABS) and Amblyseius-Slow-Release-System
(ASR), which contain the predatory mite Amblyseius cucumeris
delivered in breeding sachets, also contain Mold mites (Tyrophagus
putrescentiae) and bran. Under certain circumstances such
as a moist greenhouse climate or when using large quantities
of breeding sachets, Mold mite population can increase to the
point of causing damages in some crops (e.g. cucumbers). When
planning to use these products in crops where they have never
been used before, we recommend to first perform a small-scale
trial or to discuss this with your Biobest advisor or supplier. |
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Hypoaspis-System
(predatory mite - Hypoaspis miles) |
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Introduce shortly after
planting preventively minimum 100 Hypoaspis/m²
to control the larval and pupal stage of thrips. |
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Biological
control of whitefly |
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Encarsia-System
(parasitic wasp - Encarsia formosa) |
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Available as sprinkling material
and on cards. |
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Preventive: Introduce 1,5 Encarsia/m²
per week. |
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Curative: After detection of whiteflies,
introduce weekly minimum 3 Encarsia
formosa/m² until a sufficient number of whiteflies
are parasitized (80-90%). |
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Introduce in hot spots 5 - 10 Encarsia/m²
per week until an equilibrium is reached. |
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Eretmix-System
(mix of Eretmocerus eremicus & Encarsia formosa) |
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Eretmocerus-System
(parasitic wasp - Eretmocerus eremicus) |
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As from February introduce during
minimum 4 weeks min. 3/m² until a sufficient number of
whiteflies are parasitized (80-90%). |
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Mundus-System
(parasitic wasp - Eretmocerus mundus) |
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When Bemisia tabaci (Sweetpotato
whitefly) is detected, introduce immediately during 5 weeks
3 Eretmocerus
mundus/m². |
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Biological
control of the spider mite |
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Phytoseiulus-System
(predatory mite - Phytoseiulus persimilis) |
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Introduce minimum 6 Phytoseiulus/m²
as soon as the first spider mites are detected. |
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The dose depends on the severeness
of spider mite infestation. Introduce in and around the spider
mite hot spots: minimum 20 predatory mites/m². |
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Spread well in the working direction. |
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Californicus-System
(predatory mite - Amblyseius californicus) |
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Feltiella-System
(gall midge - Feltiella acarisuga) |
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In combination with Phytoseiulus
at spider mite hot spots. |
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Introduce locally 1 pot (250 pupae)
during 4-6 weeks. |
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Remark: The gall midges have an
excellent ability to search, but they can become disorientated
by frequent use of a sulphur steamer. |
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Biological
control of aphid |
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Aphidius-System
(parasitic wasp - Aphidius colemani) |
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Preventive: Introduce 0,1 Aphidius
colemani/m² per week |
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Curative: As soon as aphids are
detected: introduce minimum 0,5 Aphidius
colemani/m² per week, during 3 weeks until a sufficient
number is parasitized. |
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Disperse Aphidius
in Bio-Boxes
(± 25 boxes/ha). |
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Aphidoletes-System
(gall midge - Aphidoletes aphidimyza) |
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Ervi-M-System
(parasitic wasp Aphidius ervi against Potato aphid and Glasshouse
potato aphid) |
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Introduce Aphidius
ervi if Macrosiphum euphorbiae (Potato aphid)
or Aulacorthum solani (Glasshouse potato aphid) are
occurring. |
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Introduce 2 Aphidius/m²
in and around hot spots. |
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Adalia-System
(ladybird - Adalia bipunctata) |
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Introduce 50-100 Adalia-larvae/m²
in the immediate neighbourhood of aphid hot spots, as an addition
to Aphidius
and Aphidoletes. |
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Aphelinus-System
(parasitic wasp- Aphelinus abdominalis) |
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Introduce Aphelinus
abdominalis if Macrosiphum euphorbiae (Potato
aphid) or Aulacorthum solani (Glasshouse potato aphid)
are occurring. |
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Introduce 2 Aphelinus/m²
in and around hot spots. |
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Biological control
of caterpillars |
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Attract®
pheromone lures |
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Responsibility
and copyright |
