Hello I am a thatching contractor based in South Africa. I have a problem with booklice in all newly constructed thatch houses we fumigate with pyrethiods but they reapear after a few months. They eventually disapear after aprox 18 months. My clients find them very frustating and i need to find the best chemicals available preferably a long acting one that only requires a once off treatment.

None of the older thatched homes have this problem. All the South African Thatchers have the same problem.

I would be gratefull if you have any advice to offer.

John Smith.

Chairman KZN Thatchers Association