A feeler experiment was carried out to determine whether polaris applied to the foliage of Sugarcane delay late season deterioration in the quality of cane. In field No. A-3/72 a commercial crop of Co 419 was available. It was proposed to spray this crop with Polaris at 3 different doses, 2, 4, and 6 Kg/ha; a fortnight before attainment of peak quality. In Co 419 peak quality is normally reached at Sameerwadi, around the middle of February. Spray application of Polaris was therefore scheduled for 1st week of February. However, due to delay in the receipt of the chemical, the application could be make only on 5th March 1977. Samples were collected at fortnightly intervals from each treatment and analysed for Brix, Pol and Puirty. The results are summarised in Table III. The differences between treatments were not statistically significant, possibly because deterioration had already set in before treatment was applied. However, at the highest dose an arrest in the rate of deterioration is indicated. This experiment is being repeated during 1978.