The trials of "Rigorous" against wheat aphid were conducted under the directions of the worthy Chief Minister Punjab. The Secretary Agriculture desired that these trials must be conducted jointly by the Research and Pest Warning Wings. For this purpose he constituted a committee, and a protocol was developed by the committee for conducting the said trials. These trials were conducted at six different localities ie R.Y. Khan, Multan, Sheikhupura, Gujranwala, M.B. Din and Sargodha. The above said insecticide was tested at two different doses ie Rigorous @ 1 litre and 100 litre of water and @ 1.5 litre + 100 litre water comparing with simple water @ 100 litre/acre and untreated control, at the time when the aphid infestation was at its maximum, ie on reaching ETL. The Results ie average %are of mortality of aphid and wheat yield (maunds/acre) [1 maund is 40Kg] are very much convincing and are attached as Annexure-A.
According to the data submitted by the research teams regarding the %age mortality of aphid and yield of wheat crop, the performance of Rigorous @ 1.5 litre + 100 litre water proved significantly effective against wheat aphid and it had no adverse effect on natural enemies ie parasites and predators, whereas the wheat yield is enhanced up to 4 maunds per acre as compared to control. (419)
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