• ANITA KUMARI

Sugarcane is an agro - industrial crop and cultivation spread over a wide range of agro – ecological zone of India. The mature stalk is typically composed of 11 – 16 % fiber, 12 – 16 % soluble sugars, 2 – 3 % non – sugars and 63 – 73 % water. A sugarcane crop is sensitive to the climate, soil type, irrigation, fertilizers, insects, diseases control, varieties and the harvest period. The average yield of cane stalk is 60 – 70 tons per hectare per year. It varies between 20 and 180 tons per hectare per year depending on crop management approach. The long duration crop is attracted by T. nivella F., a notorious pest, which causes dead – heart disease to the plant. 24 varieties of sugarcane were screened and reveal that third and fourth brood showed minimum infestation while CoP 7104 and CoP 9103 were tolerant to the third and forth brood of the top borer. In September all the varieties registered maximum infestation. Yield loss due to infestation by different broods also confirms the above finding in different varieties.

Keywords: Agro – industrial, infestation, T. nivella, CoP 7104 and CoP 9103

"STUDY ON THE SCREENING OF SUGARCANE VARIETIES AGAINST THE DIFFERENT BROODS OF T. NIVELLA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 10, page no.3107-3112, October-2020, Available :http://www.jetir.org/papers/JETIR2010407.pdf

"STUDY ON THE SCREENING OF SUGARCANE VARIETIES AGAINST THE DIFFERENT BROODS OF T. NIVELLA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 10, page no. pp3107-3112, October-2020, Available at : http://www.jetir.org/papers/JETIR2010407.pdf