International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (292) Last page : (299)
Article doi: http://dx.doi.org/10.18782/2320-7051.4020
Studies on the Physical, Chemical Compatibility and Phytotoxic Effects of Some Insecticides and Fungicides Combinations in Rice Crop
K. Pullam Raju1*, P. Rajasekhar1, C.P.D. Rajan2 and N. C. Venkateswarlu1
Department of Entomology1, Department of Plant Pathology2,
S.V. Agricultural College, Tirupati
*Corresponding Author E-mail: pullamrajuk@yahoo.co.in
Received: 9.06.2017 | Revised: 15.07.2017 | Accepted: 21.07.2017
ABSTRACT
Five insecticides and three fungicides at recommended concentrations were tested under laboratory conditions for physical compatibility and evaluated the phytotoxic effects of fifteen pesticidal combinations on rice crop under field conditions. Out of the 15 combinations of insecticides and fungicides tested, neither foaming nor sedimentation occurred indicating that all the 15 combinations were physically compatible. The pH of pesticide combinations slightly varied with some combinations, some combinations were slightly alkaline, some were slightly acidic, while remaining were neutral in reaction.
Phytotoxic symptoms such as injury to leaf tip, yellowing, wilting, necrosis, vein clearing, epinasty and hyponasty of leaves were not observed on rice crop due to application of combination of insecticides and fungicides.
Key words: Rice, Pesticides, Compatibility, Phytotoxicity
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Raju, K.P., Rajasekhar, P., Rajan, C.P.D. and Venkateswarlu, N.C., Studies on the Physical, Chemical Compatibility and Phytotoxic Effects of Some Insecticides and Fungicides Combinations in Rice Crop, Int. J. Pure App. Biosci.6(1): 292-299 (2018). doi: http://dx.doi.org/10.18782/2320-7051.4020
