Volume No. 6 Issue No.: 2 Page No.: 286-290 Oct-Dec 2011

 

TOXICITY OF DIFFERENT INSECTICIDES TO THE ADULTS OF Choreodocus illustris (ACRIDIDAE)

 

Tanu Sharma

Department of Zoology, Section of Entomology, Aligarh Muslim University, Aligarh, Uttar Pradesh (INDIA)

 

Received on : August 29, 2011

 

ABSTRACT

 

Choreodocus illustris (Acrididae) is commonly known as grasshopper. They are polyphagous and feed on leaves of rice, maize, millents, sugarcane etc. C. illustris is an important representative of Acrididean family Pyrrhocoridae. The toxicity due to insecticidal action, choreodocus illustris (Acrididae) adults were treated against different concentrations of insecticides Cypermethrin, Malathion, Methyl Parathion and Monocrotophos. The concentrations used to dip the cotton seeds, upon which the insect feeds, were 0.005%, 0.01%, 0.025%, 0.05%, 0.1%, 0.25%, 0.5%, and 1.0%, (v/v) respectively. The present comparative study on the toxicity of Cypermethrin, Malathion, Methyl Parathion and Monocrotophos to the adults of Choreodocus illustris (Acrididae) shows that cypermethrin is most effective (LC50=0.475). On the basis of LC50 value the order of toxicity in descending manner is cypermethrin>malathion>methyl parathion>monocrotophos.

 

Keywords : Insecticides, Toxicity, Cypermethrin, Methyl Parathion, Monocrotophos, Malathion, Choreodocus illustris, LC50. Acrididae, Grasshopper

 

 

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