At the TunnelBerries University of New Hampshire research site, Kaitlyn Orde's day neutral strawberry beds are planted and waiting for the low tunnels to be constructed. White and black plastic mulches will be tested in addition to UV-transparent and UV-blocking plastic tunnel covers.
We released two commercially available (purchased from Koppert) natural enemies for whitefly control this week in the high tunnel raspberries: a predatory beetle, Delphastus catalinae, and a parasitoid wasp, Encarsia formosa. These are normally used in greenhouse production, but we are hoping that they can establish in the high tunnels too!
The images below are:
(L) Delphastus catalinae being introduced on raspberry leaves. The adult insects are shipped in a container with buckwheat hulls as a carrier.
(R) Encarsia formosa are introduced by placing cards on raspberry canes. The card hold parasitized whitefly pupae from which the parasitic wasps will hatch.