author(s)
Neelam Yadav, Neerja Agrawal and Renu Yadav

abstract
The field study was conducted during the Rabi season of 2017-2018 in organic cabbage field for observation of cabbage pests with abiotic factors. Population dynamic of cabbage pests was highly affected by weather parameters like temperature (maximum and minimum), relative humidity (maximum and minimum) and sunshine hours. The data recorded on the incidence of cabbage pests population at weekly intervals revealed that the highest population of Plutella xylostella 4.67larvae /plants, Brevicoryne brassicae 22.67 aphid/plant, Hellula undalis 0.67 larvae/plant, Spodoptera litura 0.67 larvae /plant and Athalia proxima was 5.34 larvae/plant was recorded during 52^nd SW, 14^th SW, 10^th SW, 11^th SW and 9^th SW respectively. Data calculated on correlation coefficient to estimate the relationship between the numbers of cabbage pests associated with weather parameters.