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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 benficials
and bumblebees |
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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 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 mentioned 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 whitefly |
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Encarsia-System
(parasitic wasp - Encarsia formosa) |
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Available as sprinkling material
or on cards. |
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Introduce 6 Encarsia/m²/week. |
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In case of parasitization: increase
up to 9 Encarsia/m²/week. |
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Eretmocerus-System
(parasitic wasp - Eretmocerus eremicus) |
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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 (tobacco
whitefly) has been detected, introduce during 5 weeks 3 Eretmocerus
mundus/m². |
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Biological
control of thrips |
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Amblyseius-System
(predatory mite - Amblyseius cucumeris) |
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The sensitivity to thrips depends
on the species. |
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Hang yellow
and blue sticky traps to detect the thrips. |
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If thrips larvae are detected on
the crop, introduce at least 100 Amblyseius
cucumeris/m². It is important to repeat this a
few times. |
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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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Biological
control of sciarids |
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Steinernema-System
(insect parasitic nematodes - Steinernema feltiae) |
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Apply 10 days after cutting or potting
500.000 nematodes/m². Repeat after 4-5 weeks if necessary. |
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Hypoaspis-System
(predatory mite - Hypoaspis miles) |
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Crops
