n African Entomology - Development of a device to collect mass-reared false codling moth, Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), in a commercial insectary : short communication
|Article Title||Development of a device to collect mass-reared false codling moth, Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), in a commercial insectary : short communication|
|© Publisher:||Entomological Society of South Africa (ESSA)|
|Author||J.H. Hofmeyr and J. Pretorius|
|Publication Date||Sep 2010|
|Pages||374 - 378|
|Keyword(s)||Citrus Research International (Pty) Ltd and Paragon System Design (Pty) Ltd|
The false codling moth, Thaumatotibia leucotreta (Meyrick), has been reared successfully for many years in several small insectaries in South Africa (Schwartz 1971). Rearing was for various purposes, including research, production of the egg parasitoid, Trichogrammatoidea cryptophlebia Nagaraja (Schwartz 1977), and for commercial production of the false codling moth granulovirus, CrleGV (Moore 2002; Moore et al. 2004). The techniques commonly used were adequate for the scale on which rearing was conducted. In 2002 the South African citrus industry initiated research on the sterile insect technique for false codling moth control. As this project progressed it became apparent that the equipment previously used was inadequate for mass rearing false codling moth for commercial sterile insect technique purposes. A programme was launched to design new equipment that would allow for the production of 15 million insects per week. This equipment was installed in a new insectary, Xsit (Pty) Ltd, recently built in Citrusdal, South Africa, for the mass rearing of false codling moth. Amongst others, a moth collection system, using cyclonic separators, was installed. The technical principles in the use of cyclonic separators for particulate matter collection have often been described as in Griffin (1994). However, the development of this type of equipment specifically for the collection of mass-reared moths is poorly documented and often only relates to models suitable for insect collection on a relatively small or laboratory scale, for example Wolf & Stiemann (1971). The use of cyclonic separators in new rearing facilities is therefore probably based on working models in existing mass-rearing facilities.
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