Indexing

Seasonal Incidence of Sucking Pests of the Sunflower

Author: Anjali Purushottam Sharma, Milind M. Sonkamble, Chirag B. Channe, Neha G. Matra and Dilip B. Randive

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Abstract

Sunflower is one of the important oil-seed crop of farmers community in India and its production is affected by insect pests. In order to determine the seasonal incidence of sucking insect pest of sunflower and its correlation with weather parameters the studies were carried out in College of Agriculture Parbhani, VNMKV, Maharashtra during rabi, 2022. In seasonal incidence study, it was observed that jassids, Amrasca bigutulla bigutulla and whitefly Bemisia tabaci were sucking pests in sunflower ecosystem. Jassids incidence was noticed during 4th week of September and reached peak at 5th week of October. Whitefly incidence had started during 4th week of September and reached a peak of 1.60 whiteflies/leaf/plant in 1st week of November. The population of jassid showed negative significant correlation with evening relative humidity (r = -0.601*) and wind speed (r = -0.595). The population of whitefly showed positive significant correlation with morning relative humidity (r=0.134*).

Keywords

Correlation, sunflower, jassids, whiteflies, regression

Conclusion

Jassids population had reached to the highest of 3.71 jassids/leaf/plant in 43rd SMW and it showed negative significant correlation with evening relative humidity (r= -0.601*) and wind speed (r = -0.595*). It is therefore concluded that abiotic factors contributed for 71.3 per cent of total variation in the population of jassid on sunflower. Maximum population of whitefly was recorded 1.60 whitefly/leaf/plant during 44th SMW and it showed positive significant correlation with morning relative humidity (r= 0.134*). Thus, it is concluded that the abiotic factors contributed for 53.7 per cent of total variation in the population of whitefly Bemisia tabaci on sunflower.

References

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How to cite this article

Anjali Purushottam Sharma, Milind M. Sonkamble, Chirag B. Channe, Neha G. Matra and Dilip B. Randive (2023). Seasonal Incidence of Sucking Pests of the Sunflower. Biological Forum – An International Journal, 15(10): 1032-1036.