Laboratory evaluation of insecticides against Aeneolamia varia saccharina (Homoptera: Cercopidae) in Trinidad


  • D.E. Evans Caroni Research Station, Carapichaima, Trinidad, West Indies


In Trinidad, 56 insecticides were screened in the laboratory between 1969 and 197l a possible replacements for carbaryl a residual, and Malathion, a non-residual compound used against the foliage feeding adults of the sugar-cane froghopper Aeneolamia varia saccharina (Dist.). The results of bioassays which compared the contact activities of topically applied insecticides and estimated the residual life of insecticides applied to sugar-cane foliage are given. Aminocarb, azinphos-methyl, methiocarb, monocrotophos, omethoate and propoxur are more effective than or similar to carbaryl. Dioxacarb, Dursban [O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl) pho phorothioate], mecarbam, methidathion, phosmet, and vamidothion are superior to or similar in initial effect but less residual than carbaryl. Carbofuran and thiocarboxime [Talcord (S-2-cyanoethyl N-[(methylcarbomyl)oxy]thioacetirnidate)] are highly effective but are considered too toxic for use in Trinidad. Ultra low volume formulations of diazinon, fenitrothion, fenthion and possibly phoxim show promise as potential alternatives to malathion.



Research Papers