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Scouting & Monitoring |
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Use yellow Bug-Scan®
sticky traps for (timely) detection of flying insects. During
the heating of the greenhouse hang 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 species
of flying insects which are captured on the sticky traps. |
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Contact with beneficials |
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Follow up 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 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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Amblyseius-System
(predatory mite - Amblyseius cucumeris in 1L-Sprinkler tube) |
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Disperse 250 Amblyseius
cucumeris/m²/week or every 2 weeks in thrips hot
spots. |
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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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Biological control of
spider mites |
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Phytoseiulus-System
(predatory mite - Phytoseiulus persimilis) |
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Introduce minimum 4-6 Phytoseiulus/m²
as soon as the first spider mite is detected. |
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In and especially around hot spots:
20 Phytoseiulus/m² |
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Californicus-System
(predatory mite - Amblyseius californicus) |
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Feltiella-System
(gall midge - Feltiella acarisuga) |
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Introduce 1 packing (250 Feltiella)
per hot spot per week during 3-4 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 aphids |
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Aphidius-System
(parasitic wasp - Aphidius colemani) |
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Aphidoletes-System
(gall midge - Aphidoletes aphidimyza) |
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Preventive: Introduce 5-10 Aphidoletes/m²/week
in and around aphid hot spots during at least 3 weeks. |
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Open the bottle and place this
bottle under an aphid hot spot or disperse Aphidoletes,
in heaps, on a moist substrate. |
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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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Ervi-M-System
(parasitic wasps - Aphidius ervi) |
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Aphelinus-System
(parasitic wasps - Aphelinus abdominalis) |
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Banker-System
(Rhopalosiphum padi - open rearing system for the control of aphids)
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Biological
control of whitefly |
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Encarsia-System
(parasitic wasp - Encarsia formosa) |
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Introduce every 2 weeks 0,5-1
Encarsia/m²
as soon as whiteflies are detected in the greenhouse. Repeat
until a sufficient number of whiteflies are parasitized (80-90%). |
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Crops
