author(s)
Venugopal U, Ashwani kumar, Shankar hari Prasad D and Rajesh B

abstract
Studies on seasonal incidence of diamondback moth Plutella xylostella. Infesting cabbage (Brassica oleracea var. capitata L.) work were carried out at the college of Shiats, Allahabad during 2015-2016. The P. xylostella damage was active throughout the year with a varying degree of infestation. It was recorded from a minimum of 0.32 per cent (second fortnight of Febuary) to maximum of 5.98 per cent (third fortnight of March). A study on the correlation studies indicated a significant positive correlation between larval population of diamondback moth and. the relative humidity (R.H), total rainfall and sunshine hours (SSH) had negative correlation with the larval population of diamondback moth.