Association of Thrips parvispinus (Karny) on different hosts of South India

Author: G. Durga, B. C. Hanumanthaswamy, C. M. Kalleshwaraswamy, R.R. Rachana and K. M. Satish

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Abstract

Thrips pose serious threat to a wide array of crops produced across different parts of India. The species Thrips parvispinus (Karny) is recently invaded serious pest causing major threat to many economically important crops. Random surveys were conducted in 13 different districts of Karnataka and a few places of Tamil Nadu and Andhra Pradesh, to know the associational diversity of T. parvispinus in different host crop ecosystems. Of the different host crops surveyed, the invasive T. parvispinus was observed in almost all the surveyed chilli growing regions. Other hosts were Capsicum, Chilli, Ridge guard, Cucumber, Marigold, Coriander, Carrot, Garlic, Coccinia, Beans, Cowpea, Papaya, Brinjal, Field bean, Tomato, Bhendi, Bitter guard, Beach spider lily, Madagascar periwinkle, Crape jasmine, Sweet clock vine and Morning Glory. Multiple host families like Solanaceae, Cucurbitaceae, Asteraceae, Apiaceae, Amaryllidaceae, Cucurbitaceae, Fabaceae, Caricaceae, Malvaceae, Apocynaceae, Convolvulaceae and Acanthaceae were found to be associated with T. parvispinus. This is a highly polyphagous quarantine pest and hence, may pose a potential threat to various crop ecosystems in future.

Keywords

Diversity, Thripidae, Thrips, chilli, quarantine pest

Conclusion

The present study gives information regarding the T. parvispinus associated with different crop ecosystems. During the survey, 18 host plants were recorded belonging to 12 families from different districts of south India. Dominance of T. parvispinus was observed in chilli crop ecosystem irrespective of the location. Since this is a highly polyphagous quarantine pest, the report warrants special caution. Unless successful quarantine measures are put in place, the spread and subsequent depredations of cultivated crops is inevitable. Host plant documentation of thrips from south India is lacking and hence, our work demands further survey and study in this field from the state. The presence of T. parvispinus in other parts of India needs to be closely monitored because it is likely to become a greater nuisance in the future.

References

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How to cite this article

G. Durga, B. C. Hanumanthaswamy, C. M. Kalleshwaraswamy, R.R. Rachana and K. M. Satish (2023). Association of Thrips parvispinus (Karny) on different hosts of South India. Biological Forum – An International Journal, 15(7): 290-292.