2.2. Host location of T. evanescens on paper bags and jute bags
Experiments were carried out in the laboratory to assess the
host location and parasitism of T. evanescens for biological control
of C. cephalonica on paper and jute bags, by evaluating the efficacy
of this beneficial for bagged stored rice. The jute bags used were
prepared from pieces of industrial bagging material originating
from C^ote d'Ivoire through the importation of cocoa beans to the
Port of Hamburg by cutting the original bags into different pieces.
The bags were re-sewn with a needle and rope thread obtained
from the Ghana Cocoa Board, Accra, Ghana. The mean mesh width
of the jute fabric was 2.5 mm. The experimental paper bags used for
the bioassay were also prepared from pieces of industrial bagging
material obtained from the organic bakery M€arkisches Landbrot
GmbH, Berlin, Germany through the packaging of spelt flour Type