Fipronil And Ivermectin And Complex Micro-emulsion Development

In this thesis, the combined toxicity between fipronil and ivermectin to diamondback moth, Plutella xylostella (Linn.), was studied, the components as well as their ratios in 0.5% fipronil ME, 6% ivermectin ME and 7% fipronil. Ivermectin ME, respectively was investigated and the indoor toxicities of these products on P. xylostella were tested. The results were as follows:When fipronil mixed with ivermectin at the ratio of 1:6 (M:M), the cotoxicity index (CTI) reached the highest which was 388.71 and this ratio was used in mixture product development.After solvent, emulsifier as well as their ratio screening and product quality test, 0.5% fipronil ME product was determined to contain fipronil (0.5%), JFC (30%), DMF (10%) and water (59.5%); 6% ivermectin ME contained ivermectin (6%), NP-16 (16%), n-butanol (18%), glycerol (5%) and water (55%) and ivermectin (6%), fipronil (1%), NP-16 and 7204 mixture (25%), DMF (10%),glycerol (5%) and water(53%) were added into 7% fipronil.ivermectin ME.The indoor toxicity test of the products against P. xylostella showed that thetoxicity of 0.5% fipronil ME was near to pure chemical or 5% fipronil SC; that of 6% ivermectin ME was near to pure chemical but lower than 0.5% ivermectin EC and the CTI of 7% fipronil.ivermectin ME was 389.39 which was a little lower than that of pure chemical mixture.