Fuente: WIPO "tomato" The present invention relates to a stable synergistic pesticidal composition comprising A) a compound of Formula I, i. e., 4-[5-(3,5-dichlorophenyl )-4,5-dihydro-5-(trifluoromethyl)-3-isoxazolyl]-N-[ (methoxyamino)methylene]-2-methylbenzamide or its agrochemically acceptable salts, esters and derivatives; B) Abamectin or its agrochemically acceptable salts, esters and derivatives; and C) a compound of Formula II, i. e., 3-[(2-chloro-5-thiazolyl)methyl]tetrahydro5-methyl-N-nitro-4H-1,3,5-oxadiazin-4-imine or its agrochemically acceptable salts, esters or its derivatives for effective control of various pests including insects-pests and wide range of diseases caused by pests. The present invention also relates to a process for preparation of such pesticidal composition for synergistic and efficacious control of various pests including insects-pests and diseases caused by pests.