Compatibility of Certain Insecticides with Propiconazone Against POD Borer and Die-Back and Fruit ROT in Chilli

The effect of test insecticides viz., indoxacarb(110.34 ppm), spinosad (99.83 ppm), novaluron (383.30 ppm) and cartap hydrochloride (224.32 ppm) I combination with propiconazole (0.76 ppm) on the mortality of H. argimgera larvae at their their respective LC₅₀ values revealed that all the combinations showed no effect mechanism and there is no significant difference among them. When the indoxacarb 110.34 ppm (LC₅₀) and novaluron 383.30 ppm (LC₅₀) combined with propiconazole (750, 1000, 1250, and 1500ppm) resulted into synergism against third instar larvae of H. armigera. Spinosad 99.83 ppm (LC₅₀) showed synergistic effect when combined with propiconazole (500, 750, 1000, 1250 and 1500ppm), while cartap hydrochloride 224.32 ppm was recorded synergism when combined with propiconazole (1500ppm) against H. armigera. Similarly, the propiconazole (LC₅₀) value was mixed with four insecticides at their respective LC₅₀ values and studied their effect on spore germination C.capsici. The antagonistic effect of propiconazole was displayed when it was mixed with selective insecticides at their LC₅₀ values. When propiconazole 0.76 pm (LC₅₀) was combined with indoxacarb (75, 112.5, 150, 187.5 and 225 ppm), spinosad (90, 135, 180, 225 and 270 ppm), novaluron (50, 75, 100, 125, and 150 ppm) and cartap hydrochloride (250, 375, 500, 625 and 750 ppm), synergism existed against C. capsici spore germination.