Review on Interaction among Boundary Planted Eucalyptus Globules with Soil and Crop

In recent year single rows of E. globules tree planted along field boards have become a dominant feature of central highlands of Ethiopia. Different journals showed that different extracts of E. globulus leaf had varying degrees of inhibition on germination and seedling growth of S. nigrum weed and more inhibition was seen with higher concentrations. In present study, methanol and ethyl acetate extracts had the strongest inhibitory effects. Therefore, it is possible to use these two extracts as a component for production of bio-herbicides. Eucalyptus species caused drawbacks rather than improving the performance of the undergrowth vegetation unlike the mentioned multipurpose trees. Plant secondary metabolites (PSMs) offer plants chemical defences against herbivores and are known to influence intake and diet choice in both insect and mammalian herbivores. That is why eucalyptus leaf palatability to sheep and goat is reduced.