Tolfenpyrad 15 % EC: New Broad Spectrum Pesticide to Manage Thrips and Powdery mildew in Chilli Ecosystem

Author: A.G. Sreenivas, D.S. Aswathanaryana, Sudharani, Vijayalakshmi and Sheetal

Download PDF

Abstract

Chilli is an important commercial spice crop, in which sucking pests and powdery mildew are the major impediments. In this context, a field experiment was conducted at main agricultural research station Raichur, during kharif 2011-12 and 2012-13, to evaluate the bio-efficacy of new and third generation neonicotinoid group molecule tolfenpyrad 15 % EC at various dosages against chilli thrips, (Scirtothrips dorsalis) and powdery mildew (Leveillula taurica). Results revealed that, tolfenpyrad 15 % EC at 150 g a.i/ha was found superior as it recorded less number of thrips (3.33/leaf) which resulted in higher dry chilli yield of 26.24 q/ha. Further, when its efficacy was tested separately against powdery mildew the compound at same dosage could able to reduce the disease with PDI of 25.47 and 29.11 (mean 22.56 %) together with maximum yield. In vitro evaluation of tolfenpyrad 15 % EC at different concentration revealed that, 150 g a.i/ha was able to inhibit spore germinati

Keywords

Chilli, Tolfenpyrad, Thrips and Powdery Mildew

Conclusion

Tolfenpyrad 15 % EC at 150 g a.i/ha could effectively manage both thrips and powdery mildew which aided in getting maximum dry chilly yield. Being a broad spectrum pesticide works very well in curbing the menace of insect pests and diseases. Its usage is like a double edge sword whereby at one stroke two major ailments can be managed which reduces the plant protection cost hence such tools fit very well in IPM system particularly in chilli ecosystem.

References

-

How to cite this article

Sreenivas, A.G., Aswathanaryana, D.S., Sudharani, Vijayalakshmi and Sheetal (2021). Tolfenpyrad 15 % EC: New Broad Spectrum Pesticide to Manage Thrips and Powdery mildew in Chilli Ecosystem. Biological Forum – An International Journal, 13(3): 429-437.