author(s)
Purti, Rinku and VS Malik

abstract
All the ten varieties/germplasm viz., Hisar Anand, Hisar Sugandh, Hisar Surbhi, DH-220, DH-206, Hisar Bhoomit, DH-2, Pant Haritima, DH-236 and DH-306 of coriander crop was raised during ‘rabi’ 2014-15 following recommended agronomical practices. The experiment was laid out in randomized block design, with three replications and plot size of 3m x 2m. Incidence of seed midge (Systole albipennis) was recorded on the basis of exit holes present in coriander seed observed at harvest. The first observation was made on the umbels bagged on 18^th March, 2015. The highest incidence of seed midge was observed in the 1^st week of April in germplasm DH-2 and the lowest incidence of this pest was recorded in variety DH-220. Correlation between the incidence of Systole albipennis and abiotic factors of environment (minimum and maximum temperature, relative humidity, wind speed, sunshine hours and rainfall) was worked out to know their relationship, if any. The maximum temperature showed the positive effect on the incidence of seed midge. Minimum temperature, relative humidity, wind speed, sunshine hours and rainfall had non - significant effect on the incidence of the seed midge.