Journal of Entomological Research
Year : 1990, Volume : 14, Issue : 1
First page : ( 1) Last page : ( 4)
Print ISSN : 0378-9519.

Relative toxicity of some important insecticides to Bihar hairy caterpillar, Spilosoma obliqua (Walker) (Arctiidae: Lepidoptera)

Nagia D.K., Kumar Sanjay, Saini M.L.

Central Insecticides Laboratory, Directorate of Plant Protection, Quarantine and Storage, NH-IV, Faridabad-121 001 (India).

Accepted:  10  February,  1990.

Abstract

The toxicity of eleven insecticides to second instar larvae of Spilosoma obliqua (Wlk.) was studied. On the basis of LC₅₀ values, the descending order of toxicity was: deltamethrin(0.00313) followed by cypermethrin (0.00601), fenpropathrin (0.00921), fenvalerate (0.00952), fluvalinate (0.01556), endosulfan (0.01914), methyl parathion (0.02057), and monocrotophos (0.02786). Diazinon, triazophos and acephate were found ineffective.

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