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Journal of Entomological Research
Year : 1990, Volume : 14, Issue : 1
First page : ( 5) Last page : ( 7)
Print ISSN : 0378-9519.

Shift in the level of susceptibility of Myzus persicae to some insecticides

Dhingra S.

Division of Entomology, Indian Agricultural Research Institute, New Delhi-110 012 (India).

Accepted:  15  January,  1990.

Abstract

The toxicity of commonly used seven insecticides was evaluated against Myzus persicae Sulz. to ascertain the trend of its susceptibility towards them. There has been a considerable shift in the level of susceptibility M. prsicae to insecticides during the past two decades. The LC50 values of phosphamidon, lindane and mdosuilan increased 155, 30 and 21 times. However, no such shift was evident in the case of pyrethrum.

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