التأثير التآزري لمستخلصات أوراق الآس Myrtus communis L. و اليوكالبتوس Eucalyptus camaldulenses L. في سمية المبيد البيروثرويدي (جيم 10)‎ ضد خنفساء الحبوب الشعرية Trogoderma granarium Everts (Coleoptera : Dermestidae)‎

الملخص EN

The study attempts to explore the killing effect of utilizing vegetable oils extracted from Myrtle and Eucalyptus leaf plants, with concentrations of the Pyrethroid insecticide GEM 10 respectively (0.01, 0.05 and 0.1) ml/l on third larval instars plus adults of Trogoderma granarium Everts.

The results revealed that the percentage of mixing oil with pesticide at (1:1) clearly outperformed (3:1) through direct as well as indirect treatment.

It was found out that the treatment applied during a period of 48 h presented better outcomes compared with 24 h.

The highest percentages of mortality rate of third-instar larvae, when mixing (1:1), reached (55.16, 53.66%) and it was (46.16, 41.16%) in adults after 24 h; (74.83, 69.66%) in larvae in like manner (62.50, 64.00%) in adults after 48 h in the treatment for a mixture of both Myrtle in addition to Eucalyptus oils with the pesticide respectively.

While the lowest percentages of mortality rate of 3rd instar larvae were (27.16 and 29.00%) and were (21.66 and 21.33%) after applied on adults when mixing (3:1) for the same mixture after 24 h, and (36.33 and 43.66%) in larvae and (38.00 and 41.16%) in adults after 48 h in the treatment