Seasonal Incidence of Tea Mosquito Bug, Helopeltis spp. in Guava, cv. L-49 at MARS, Dharwad, Karnataka

Author: Anandkumar V., Hugar, P. S. and Hiremath, S. M.

Download PDF

Abstract

Tea mosquito bug (TMB) or guava kajji bug, Helopeltis spp. (Heteroptera: Miradae) is the most noxious insect pest that assumes major pest status in South and Central India. Major reason for the serious pest problems on guava can be attributed to its wide area of monoculturing and intensive cultivation practices. Adults and nymphs suck the sap from young leaves, tender shoots, flower buds and small fruits. If the fruits are young, they dry up and drop down. Damage to the leaves and shoots cause drying and withering of shoots. On fruits, with the maturation, the feeding punctures expand and results in corky formation affecting the marketable yield. This leads in loss of fruits to an extent of 60-70 per cent. The information with regard to pest status of tea mosquito bug and seasonal incidence in guava is lacking. In light of the above, the present investigations were undertaken. The incidence pattern of tea mosquito bug on guava was studied at Main Agricultural Research Station (MARS), U

Keywords

Seasonal incidence, tea mosquito bug, guava, correlation, weather parameters.

Conclusion

From the present investigation, it can be deduced that, incidence of Helopeltis spp. on guava persisted from June to December months. The peak infestation on young leaves, flower buds and fruits was observed during October month. Correlation studies on impact of weather parameters on infestation level of tea mosquito bug revealed significant negative correlation with respect to maximum temperature. However, relative humidity and rainfall were significantly positive correlated.

References

-

How to cite this article

Anandkumar V. , Hugar, P. S. and Hiremath, S. M. (2022). Seasonal incidence of tea mosquito bug, Helopeltis spp. in guava, cv. L-49 at MARS, Dharwad, Karnataka. Biological Forum – An International Journal, 14(1): 1262-1268.