One common management option for crop-pest lesion nematodes is soil fumigation and nematicides. Deaths have resulted from accidental exposure to fumigation materials containing aluminum phosphide or phosphine. Fumigation with methyl bromide was to be phased out globally by 2015. Hydrogen sulfide fumigation reduces enzymatic browning and therefore ensures rhizome quality. Common treatments may use borate, and frequently structural fumigation. Specialist formulations are available for ultra-low volume spraying, fogging, fumigation, "etc". This process is called tent fumigation, or "tenting". Fresh longan that is shipped worldwide is exposed to sulfur fumigation. Post operation ventilation of the area is a critical safety aspect of fumigation. Applications include tomato, strawberry, and ornamental shrub growers, and fumigation of ham/pork products. Gorgas also took another step in his efforts to eradicate mosquitoes in Panama&colon; fumigation. Auschwitz received 23.8 tonnes, of which six tonnes were used for fumigation. Auschwitz received 23.8 tonnes, of which 6 tonnes were used for fumigation. He mentions its use for fumigation, medicine, and bleaching cloth. Sulfur was used for fumigation in preclassical Greece; this is mentioned in the "Odyssey".