EFFICIENCY OF SOME CONVENTIONAL AND NONCONVENTIONAL INSECTICIDES ON THE MAIN INSECT PESTS ATTACKING FABA BEAN PLANTS

The present study was carried out at the experimental farm of sakha agricultural research station, kafr el-sheikh governorate during two successive seasons, 2011/12 and 2012/13 to evaluate the influence of some conventional (malathion extra or max sped) and non-conventional insecticides on the main insect pests attacking faba bean plants. the conventional insecticide malathion-extra exhibited a high efficiency against aphis craccivora (koch.) population with the highest average percentage of reduction (86.26 ±7.64 % and 94.34±2.85 %) followed by capel 2 (72.13 ±6.20 % and 79.69±5.75 %) during the two seasons; 2011/12 and 2012/13, respectively. the conventional insecticide malathion-extra exhibited a high efficiency against empoasca spp. population with the highest average percentage of reduction (51.52±11.19 % and 58.83±5.45 %) followed by capel 2 (40.88±10.14% and 54.09±7.50 %) during the two seasons, respectively. the conventional insecticide max sped exhibited a high efficiency against liriomyza trifolii (burgess) larval population with the highest average percentage of reduction (75.97±10.52 % and 67.25±13.94 %) followed by capel 2 in the first season (75.63± 4.19 %) and bioguard in the second one (57.10±12.15%). the statistical analysis revealed significant differences among average percentages of reduction of aforementioned insect pests and the used compounds during the two successive seasons.