1Department of Plant Pathology, College of Agriculture, Acharya N.G. Ranga Agricultural University, Hyderabad-500 030, Andhra Pradesh, India
ICAR-Indian Institute of Rice Research, Hyderabad-500 030, Andhra Pradesh, India
*Corresponding author's e-mail and address: shyamkishorpatel@gmail.com; Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221 005, Uttar Pradesh, India.
Online published on 9 October, 2018.
Six insecticides spray were evaluated by taking one highly susceptible ‘T(N)1’ and another resistant cultivar, ‘Vikramarya’, under glasshouseconditions. Among the insecticides, buprofezin(@1.6g/L)and imidacloprid (@ 0.25 ml/L) controlled the insect vector population fully without any RTD infection in T(N)1 after one and five days of treatment. These were significantly superior over than rest of the treatments. The spray of difenthiuron and dinotefuron @ 0.2% concentration were found effective significantly in controlling the insect vector population (94%) and decreasing the RTD infection of 75%. In rice cultivar, Vikramarya, buprofezin (@1.6 g/L), imidacloprid (@ 0.25 ml/L), dinotefuran (@ 2 g/L), difenthiuron (@1.2 ml/L) full control of insect and no RTD infection at one and five days after treatment.
Imidacloprid, Insecticides, Leaf hopper vector, Rice, Rice tungro
