Berlese Funnel Extraction Unit
Developed by Antonio Berlese in the late 1800’s this device is used to force insects from grain samples. Based on the science that insects respond negatively to light, grain samples are placed in funnels beneath an incandescent bulb for an eight hour period. These funnels have a screen bottom small enough to hold the grain but have large enough openings to allow insects to pass through. The funnels containing the grain are placed over jars of an alcohol/water combination in order to capture the insects for inspection after the test is complete. These units have an electrical certification and come complete with the light fixture, grain funnels and jars, everything required to extract insects from all types of samples. This method is used by the Canadian Grain Commission to extract insects from many different types of samples.