Seasonal Incidence and Eco-friendly Management of Jassids in Cluster bean [Cyamopsis tetragonoloba (L.) Taub]

Author: Ranjana Bali*, Amit Kumar Singh, P. K. Kumawat, Talim Hussain, Monika Singh, R. N. Sharma, Subhash Bajiya and Sardar Singh Kakraliya

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Abstract

The field trial was conducted in Sher-e- Kashmir University of Agricultural Sciences and Technology, Jammu, Chatha, for investigating the seasonal incidence and eco-friendly management of jassids in correlation with the weather parameters. From the experiment it was estimated that the cluster bean is attacked by number of insect pest but sucking pests like jassids (Amrasca biguttula biguttula, Ishida) was seen to cause more damage to the crop in sub tropic Jammu. The study showed that the jassid population was at its peak in the 17th standard week during 2020. The correlation study shows that jassids had positive correlation with temperature whereas it shows negative correlation with relative humidity and rainfall. For eco-friendly management of jassid in clusterbean the following insecticides were selected such as neem oil, garlic oil, pongamia oil, novulran, Bacillus thuringiensis, Beauvaria bassiana, Metarrhizium anisopliae, spinosad. Among sprayed eco-friendly insecticides for the

Keywords

Eco-friendly, Novaluron, Spinosad, Jassid, Cluster bean, Incidence

Conclusion

The cluster bean is attack by large magnitude of insect pest among them the entire sucking pest like, jassids cause more damage to the crop and can be considered as the major pest of the crop. The study concluded that the jassid population was at its peak in the 17th standard week with 17.65 jassid leaf. Weather parameters play a crucial role in the insect-pest attack which requires the development of sustainable management strategy. correlation matrix between seasonal incidence of jassid and weather factors revealed that mean maximum and minimum temperature had positive and highly significant effect on jassid population. On the other hand mean relative humidity (morning and evening) and rainfall showed highly significant but negative effect on the jassid population. The evaluation of field bio-efficacy of botanicals, microbial insecticides, insect growth regulator and chemical insecticide against jassid, revealed that after two sprays spinosad 45 EC was found to be the best treatment

References

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How to cite this article

Ranjana Bali*, Amit Kumar Singh, P. K. Kumawat, Talim Hussain, Monika Singh, R. N. Sharma, Subhash Bajiya and Sardar Singh Kakraliya (2022). Seasonal Incidence and Eco-friendly Management of Jassids in Cluster bean [Cyamopsis tetragonoloba (L.) Taub]. Bio