Vol. 12, Issue 6 (2023)

Author(s):
Saurabh Singh, Vivek Singh, Saurabh Kumar, Happy Singh, Shubham Gangwar and Himanshu Kumar Gupta

Abstract:
Studies on population dynamics and management of diamond backmoth, Plutella xylostella (Linnaeus) on cabbage revealed that the pest population of Plutella xylostella (Linnaeus) appeared from third week December which gradually increased and attained a peak of 8.90 larvae per plant during fourth week January. It indicated that the pest was more active during the month of January. Later on, the pest population declined gradually towards the maturity of the crop. Among the different weather parameters, maximum temperature exhibited highly significant positive correlation (0.839) with P. xylostella. Whereas, remaining all the weather parameters showed non-significant correlation. In the management the maximum damage, maximum yield and larval population over control was observed in Chlorantraniliprole 18.5 SC followed by Emamectin Benzoate 5 SG. Two sprays were found more effective in controlling P. xylostella than single spray.