Efficiency of conventional and non-conventional insecticide on the main pests attacking kidney bean plants and their effects on some crop parameters

Experiments were carried out at Quesna, Menufyia governorate during season 2010 in summer plantation to evaluate the efficiency of conventional insecticide Sumithion (50 EC) or Fenitrothion and non-conventional insecticide against the main pests attacking kidney bean. Regarding to the conventional insecticide Sumithion exhibited a high efficiency against Aphis craccivora (koch.) population with the highest percentage of reduction (83.4%) after two days from treatment, while the non- conventional insecticide liquid sulfur 30% caused the highest percentage of reduction 77.1 and 83.1% after 5 and 7 days from treatment. With respect to the conventional insecticide Sumithion exhibited a high efficiency against Bemisia tabaci (Genn.) population with the highest percentage of reduction (93.7%) after two days from treatment, while the non- conventional insecticide Mineral oil and liquid sulfur 30% caused the highest percentage of reduction 85.0 and 84.5% after 5 and 7 days from treatment, respectively. Results showed, the conventional insecticide Sumithion exhibited a high efficiency against Emposca discipiens Poali population with the highest percentage of reduction (82.1%) that after two days from treatment, while the conventional insecticide Sumithion and non- conventional Orange oil caused the highest percentage of reduction 53.8 and 60.5% after 5 days and 7 days from treatment, respectively. In addition, the results revealed that, the conventional insecticide Sumithion exhibited a high efficiency against Liriomyza trifolii (Burgess) population with the highest percentage of reduction (75.5%) after two days from treatment, while the conventional insecticide Sumithion and non- conventional Liquid sulfur 30% caused the highest percentage of reduction 64.1 and 47.8% after 5 and 7 days from treatment, respectively. The obtained results indicated that, the non- conventional insecticide Mineral oil exhibited a high efficiency against Tetranychus urticae (Koch.) population with the highest percentage of reduction 87.2% after two days from treatment, while the nonconventional insecticide Liquid sulfur 30% caused the highest percentage of reduction 76.8 and 81.8% after 5 and 7 days from treatment, respectively. Regarding to the kidney bean crop parameters, the conventional insecticide Sumithion exhibited a high efficiency against the main pests on kidney bean, as a highest mean length of plants, the highest mean number of poles/ plant, the highest number of seeds/ pode and the highest mean weight of 100 seeds. On the other hand, the non-conventional pesticides Liquid Sulfur, Mineral oil, Orange oil and Bio-fly exhibited intermediate efficiency against the main pests on kidney bean with respect to the aforementioned parameters of the crop.