Ethylene Dibromide as a Fumigant for the Japanese Beetle

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Abstract
In preliminary investigations, 2 stock mixtures of 16 and 62% of ethylene dibromide when diluted with ethylene dichloride and a surface-active agent were found highly effective against all stages of the Japanese beetle. The 62% mixture was very effective against larvae in plant balls, while the 16% mixture produced a high percentage of kill in thin layers of soil and in turf. The latter mixture was also effective against pupae in plant balls and in turf and against eggs in soil masses. These tests have shown that ethylene dibromide is toxic to some plants but at the dosages and exposure period required to produce these controls, it should be a useful insecticide, as it is cheap and easy to apply.

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