首页|EVALUATION OF TOXICITY OF INSECTICIDES TOWARDS TOBACCO CATERPILLAR, SPODOPTERA LITURA (FABRICIUS) POPULATIONS FROM PUNJAB
EVALUATION OF TOXICITY OF INSECTICIDES TOWARDS TOBACCO CATERPILLAR, SPODOPTERA LITURA (FABRICIUS) POPULATIONS FROM PUNJAB
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NSTL
The tobacco caterpillar Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) is an important polyphagous insect pest that is causing huge damage to crops worldwide. The toxicity data of insecticide plays an important part in management of insect-pest as it determines the effectiveness of insecticide. The present study was conducted to evaluate toxicity of insecticides by leaf dip assay towards populations of S. litura collected from four different regions i.e. Amritsar, Kapurthala, Malerkotla and Ludhiana of Punjab. The LC_(50) values were determined for all insecticides with respect to different populations of S. litura to evaluate toxicity. On comparison of LC_(50) values of test insecticides the Emamectin Benzoate (0.0000086 to 0.000020 percent) was found to be highly toxic to S. litura followed by Cyantraniliprole, Indoxacarb, Spinosad and Fenvalerate for all populations. Fenvalerate was least toxic to populations of S. litura with LC_(50) value ranging from 0.002315 to 0.005622 percent. Thevariations in sensitivity of S. litura populations towards insecticides were reported in all regions. Amritsar region population was found to be least sensitive with highest LC_(50) values for all insecticides followed by Kapurthala, Malerkotla, Ludhiana, susceptible populations. The information regarding toxicity would be helpful for inventing new management strategies for S. litura.
InsecticidesLC_(50) PunjabSpodoptera litura
ANUREET KAUR CHANDI、AVNEET KAUR、R.S. CHANDI
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Department of Entomology Punjab Agricultural University, Ludhiana-141 004, Punjab, India
NSTL
