The field experiment was conducted at Horticulture Farm, S.K.N. College of Agriculture, Jobner, Rajasthan during two consecutive seasons i.e. Rabi, 2022-23 and Rabi, 2023-24. During investigation diamondback moth was reported as a major insect pest of cabbage crop. The infestation of diamondback moth was initiated from third week of December (51st SMW) and peaked in first week of February (6th SMW) and second week of February (7th SMW) in Rabi, 2022-23 and 2023-24 respectively. The correlation studies revealed that the P. xylostella population showed a significant positive correlation with maximum temperature (r = 0.57) and sunshine hours (r = 0.56) during Rabi, 2022-23. Whereas during 2023-24, it had a significant positive correlation with minimum temperature (r = 0.73)

Diamondback moth, seasonal incidence, correlation, abiotic factors

The present investigation made on seasonal incidence of diamondback moth in relation to abiotic factors on cabbage. The infestation of diamondback moth 3rd week of December (51th SMW) during both years. The population of diamondback moth gradually increased and reached to its peak in the first week of February (6th SMW) and second week of February (7th SMW) during 2022-23 and 2023-24 respectively. The population of diamondback moth was positively correlated with maximum temperature and sunshine in 2022-23 and it had also showed positively correlated with minimum temperature during 2023-24

Vinod Kumar, Akhter Hussain, S.L. Sharma, D.R. Bajya, Manisha Sharma, J.K. Bana and Laxman Singh Saini (2025). Effect of Weather Parameters on Seasonal Activities of Plutella xylostella (L.) on Cabbage. Biological Forum – An International Journal, 17(1): 131-135