The field experiment was carried out on population dynamics of aphids infesting okra with different sowing dates during rabi-summer season of 2016-17 at Agronomy Farm, College of Agriculture, Dapoli. The results revealed that there were marked differences in infestation of aphid population. The initiation of aphids infestation was started from 4th week after sowing at each sowing dates. During cropping season at different sowing dates, the mean infestation varied from 0.80 to 4.66 per three leaves per plant. Minimum aphids infestation (0.80 ± 1.08) was recorded in S1 (12th -18th Nov.,) sowing date in 5th SMW (29th Jan., – 4th Feb., i.e. 11 weeks after sowing), while maximum (4.66 ± 1.33) infestation was recorded during 19th SMW (7th – 13th May i.e. 7 weeks after sowing) in S6 (26th Feb., –4th March) sowing date. In S6 (26th Feb., – 4th March) sowing date correlation between various weather parameters with mean infestation of aphids were significantly relationship except minimum temperature and morning relative humidity.

Seasonal incidence, aphids, weather parameters, correlation, sowing dates

From the present investigation, it can be concluded that the sowing date play vital role in okra production. Early sowing of okra reduces aphids infestation. While, S6 (26th Feb., – 4th March) sowing date correlation between various weather parameters with mean infestation of aphids were significantly relationship except minimum temperature and morning relative humidity.

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