Biological control of sweet pepper pests in the Netherlands | [Lutte biologique contre les ravageurs du poivron aux Pays Bas]
1999
van Schelt, J. ((Koppert B.V., Berkel en Rodenrijs (Netherlands))
In 1998 a total of approximately 1000 ha. of sweet pepper was cultivated in glasshouses in the Netherlands. The aphids Myzus nicotianae and Aulacorthum solani often disrupted the IPM program and had to be corrected with chemicals. The thrips Echinothrips americanus has been found in peppers since 1996. The occurrence of ants (Lasius niger) seems to hinder the development of Orius laevigatus in the crop. In a semi-field trial it was proven that the mite Amblyseius degenerans preys on the eggs of Aphidoletes aphidimyza. New possibilities to work with bankerplants for aphid control are described. The use of the gall midge Aphidoletes aphidimyza has been improved by leaving the pupae in the bottle with the carrier material. In a field test the combined use of Trichogramma brassicae and Orius laevigatus against eggs of the moth Chrysodeixis chalcites was a success
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