Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145.
Present address: Asst. Plant Pathologist, A.P.A.U., A.R.S., Ambajipet and Associate Professor and Head, A.P.A.U., A.R.S., Chinthalapudi, Ponnur respectively.
Foliar sprays with plant growth regulators alone-2,4 dichlorophenoxy acetic acid (2, 4-D) 3 and 5 ppm, lihocin (2-chloroethyl) 2 trimethyl ammonium chloride, cycocel) 500 ppm, miraculan (1, hydroxyltriacontane) 1000 ppm and soil application of nematicides, phorate and aldicarb were evaluated in the field for the management of Meloidogyne javanica on tomato. 2,4-D (3 and 5 ppm), lihocin (500 ppm)and miraculan (1000 ppm) reduced root-knot disease severity. Soil application of phorate (3 kg or 5 kg a.i./ha), aldicarb (3 kg a.i./ha) in combination with foliar sprays with plant growth regulators was more effective in reducing the root-knot disease severity than when the nematicides were applied alone. 2,4-D increased the yield of tomato in rabi season and lihocin increased the yield in summer season.
Meloidogyne javanica, lihocin, phorate, aldicarb, tomato, yield
