Bacillus thuringiensis israelensis

Bacillus thuringiensis serotype israelensis (Bti) is a group of bacteria used as biological control agents for larvae stages of certain dipterans.

The crystal aggregation which these toxins form contains at least four major toxic components, but the extent to which each Cry and Cyt protein is represented is not known and likely to vary with strain and formulation.

Bacillus thuringiensis israelensis (Bti) was discovered in 1976 by Yoel Margalith, a professor at Ben Gurion University in Israel.

[3] The initial field tests of Bti were conducted in 1978 against the floodwater mosquito species Aedes vexans in the River Rhine Valley of Germany.

Over the years, Bti has been extensively used by various organizations, including the German Mosquito Control Association, Kommunale Aktionsgemeinschaft zur Bekämpfung der Schnakenplage e.V.

An Ovitrap, a tool for the collection of eggs from tiger mosquitoes : In this case, an ovitrap type used for the monitoring of the Asian tiger mosquito Aedes albopictus in the Swiss canton of Ticino . The presence of the mosquitoes is detected through the eggs they lay on the wooden paddle or from larvae that hatch from these eggs in the laboratory. The brown granules in the water are a Bacillus thuringiensis israelensis preparation that will kill mosquito larvae that hatch in the ovitrap. Ovitraps are also used to monitor the Culex mosquito, yellow fever mosquito Aedes aegypti .