International Journal of Plant Protection

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Detection of Pink Bollworm, Pectinophora gossypiella, Saunders Infestation Using Soft X-Ray Machine


Affiliations
1 Fertilizer Control Laboratory, TIRUVARUR (T.N.), India
2 School of Post Graduate Studies, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
     

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An experiment was carried on standardization of X-ray radiography methodology for the detection of pink bollworm infestation in cotton bolls during 2012-14 at Indian Institute of Crop Processing Technology, Thanjavur, Tamil Nadu, India. Studies revealed that the controllable input electrical parameters of the X-ray machine viz., voltage, current and exposure period required for the detection of internal infestation varied widely for cotton bolls compared to stored grains and fruits tested by other scientists. High voltage and current were required for dense cotton bolls to ensure adequate penetration of radiation. It was observed on visual analysis that the X-ray radiation generated at 80 kV and 10 mA for 30 seconds resulted in the best visual images to view internal content of cotton bolls and observed to be the best for cotton bolls imagery out of 96 combinations tested for best detection of hidden infestation. While other combinations, for example, 60Kv, 4mA for 10 seconds and 90 Kv, 10mA for 30 seconds manifested into lighter and darker images, respectively.

Keywords

Pink Bollworm, Infestation, X-Ray, Non Destructing Sampling.
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  • Detection of Pink Bollworm, Pectinophora gossypiella, Saunders Infestation Using Soft X-Ray Machine

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Authors

S. Nandini
Fertilizer Control Laboratory, TIRUVARUR (T.N.), India
S. Mohan
School of Post Graduate Studies, Tamil Nadu Agricultural University, Coimbatore (T.N.), India

Abstract


An experiment was carried on standardization of X-ray radiography methodology for the detection of pink bollworm infestation in cotton bolls during 2012-14 at Indian Institute of Crop Processing Technology, Thanjavur, Tamil Nadu, India. Studies revealed that the controllable input electrical parameters of the X-ray machine viz., voltage, current and exposure period required for the detection of internal infestation varied widely for cotton bolls compared to stored grains and fruits tested by other scientists. High voltage and current were required for dense cotton bolls to ensure adequate penetration of radiation. It was observed on visual analysis that the X-ray radiation generated at 80 kV and 10 mA for 30 seconds resulted in the best visual images to view internal content of cotton bolls and observed to be the best for cotton bolls imagery out of 96 combinations tested for best detection of hidden infestation. While other combinations, for example, 60Kv, 4mA for 10 seconds and 90 Kv, 10mA for 30 seconds manifested into lighter and darker images, respectively.

Keywords


Pink Bollworm, Infestation, X-Ray, Non Destructing Sampling.

References