Impact of Different Transplanting Periods on the Incidence of Aphid, Uroleucon compositae Theobald in Gaillardia

To see the activity of aphid, Uroleucon compositae Theobald, gaillardia crop transplanted during 3^rd week of October, 1^st week of November, 3^rd week of November, 1^st week of December, 3^rd week of December and 1^st week of January during 2013–14 and 2014–15. The activity of aphid was significantly the lowest (28.23 aphids/10 cm terminal twig) in the crop transplanted during 1^st week of January in both the years. Significantly the highest activity (85.99) of aphid was recorded in the crop transplanted during 1^st week of November followed by 3^rd week of November (71.24). There was significant impact of various abiotic factors on the activity of the pest.