التأثير الجاذب و الطارد لمستخلصات أخشاب بعض أشجار الغابات في حشرة microcerotermes diversus silv. الأرضة (isoptera :termitidae)‎

الملخص EN

The stady results of the attraction and repellency effects of Ethanol, Hexane, Petrolium ether and Water extractions of heartwood and sapwood of Platanus orientalis, Populus nigra, Cupressus sempervirens, Pinus brutia, Salix acmophylla and Eucalyptus camaldulensis showed a significant difference in attraction and repellency percents on termite workers according to the kind of solvent, wood type and tree species.

Ethanol extraction of poplar sapwood showed a high percent of repellency for termites workers 63 % , while the ethanol extracts of Eucalyptus sapwood were a high attraction of workers 86 %, while for both repellency and attraction hexane extraction of Pinus sapwood were 56 % and 86 % respectively, while the extract of sapwood by same of solvent were attraction percent for workers reached 80 %, repellency 50 % of termite for water extracts of Platanus sapwood and the attraction percent of water extract for Pinus sapwood were 76 %.

The results showed the all extractions exhibited repellency effect on termites workers, and the heartwood extractions showed a superior repellency effect on termites in comparison with the sapwood extraction, in general the extractions of Pinus bcutia, Cupressus sempervirens and Salix acomphylla showed a superior repellency effect on termites in comparison with the extractions of Platanus orientalis, Populus nigra and Eucalyptus camaldulensis.