اختبار فاعلية رماد خشب التفاح و العنب و الزيتون على خنفساء اللوبياء العادية Callosobruchus maculatus (F.)‎ مخبريا

الملخص EN

The Effectiveness of three types of ashes, apple, grape and olive, was tested against adults of cowpea seed beetle Callosobruchus maculatus (F.) (Coleoptera, Bruchidae) using five concentrations: 5, 10, 20, 40 and 80 g/kg cowpea seeds.

The study was carried out in an incubator with constant temperature and humidity at the Biotechnology Research Center, Al-Baath University, Homs.

Syria.

Effectiveness of mortality increase rates was calculated for adults 72 hours after treatment and Effectiveness in reducing seed weight loss, damage rate and the reduction of adult emergence numbers was determined.

The results obtained showed that the effectiveness of the three ashes in increasing mortality rates with superiority of apple ash with significant (P=0.01) increase of 85.43%, compared with both grape ash 85.09% and olive ash 84.94%.

Effectiveness was also increased with increasing concentration, where the maximum value reached 85.72% at concentration of 80 g/kg and the lowest value was 82.89% for the concentration of 5 g/kg.

The relationship was positive between increasing concentration and increasing effectiveness of ashes in reducing seed loss, damage rate and adults emergence rate.

The effectiveness at concentration 5 g/kg was 86.26, 87.68 and 88.01%, respectively, and the effectiveness increased at concentration 80 g/kg to 98.76, 98.70 and 98.80%, respectively.

Apple ash was superior to that of grape and olive, where effectiveness of apple ash in reducing weight loss, damage and adult emergence reached 93.96, 94.35 and 93.80%, respectively, whereas it reached 91.21, 91.41 and 91.41%, respectively, in case of olive ash.

The results of the study showed that the three ash types were effective against cowpea seed beetle, with the apple ash being superior over the other two ashes.

Keywords: Effectiveness, ash, cowpea seed beetle, Callosobruchus maculatus