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The life history of Epicauta lemniscata Fab. (order Coleoptera, family Meloidae) is given for southern Louisiana.

In experiments conducted in Southwestern Louisiana for the control of blister beetles on soybeans, calcium arsenate and Paris green were tried both as dusts and sprays with and without lime. These acted as repellents, giving no control. Dusting with sodium cyanide gave a very small percentage of control. Various contact insecticides were tried without success. Attraction to artificial light was small. In June 1925 applications of sodium fluosilicate (analyzed as sodium fluosilicate 97.90 to 98.10 by Bureau of Chemistry, U. S. D. A.) applied at the rate of 15 pounds per acre gave practically 100 per cent control. A mixture of equal parts by volume of sodium fluosilicate and hydrated lime gave practically the same results but did not kill so quickly as undiluted sodium fluosilicate.

Sugarcane is injured by the gnawing of the adult ( Euetheola rugiceps Lec.) into the underground stem of the young plant. Observations show that the number of sugarcane beetles in different places around a plantation varied from zero in woodlands to more than 100,000 per acre in pasture. Owing to the much greater number of early cane shoots produced by planting sugarcane in the summer rather than in the fall, the former practice affords a much better chance than the latter of producing a crop in the areas where the beetle is a serious problem.

A survey of the sugar-cane fields of Louisiana showed the number of soil animals and root injury to be greatest on heavy soils. The most numerous of the injurious species in sugar-cane fields was Hanseniella unguiculata Bagnall, with Onychiurus armatus Tull., Japyx sp., Lepidocyrtus violentus Fols., and Zonitoides arboreus Say following in the order named. After extermination of soil animals normal numbers were reached again in two years.

Several insecticides were applied in a band along the drill at corn-planting time or soon after plants emerged for the control of the sugarcane beetle, Euetheola rugiceps (Lee.), in Mississippi. Aldrin and heptachlor granules and sprays at 1 pound per acre were the most effective and gave about equal control. Dieldrin was as effective as aldrin in a spray, but not in granules. Thiodan, Thimet, Guthion, Chlorthion, and Sevin were ineffective at the dosages used.

The newly discovered injury to sugarcane by a small weevil, Anacentrus sp., is described. The character of damage is the destruction of the eyes of sugarcane and also killing of the young plants.