PARTICIPIAL PHRASE. Present participles, verbals ending in-ing, and past participles, verbals that end in-ed (for regular verbs) or other forms (for irregular verbs), are combined with complements and modifiers and become part of important phrasal structures.Participial phrases always act as adjectives.ometimes part of the noun phrase is delayed until the end of the sentence so that that portion of the phrase (usually modifying phrases  participial or prepositional) can receive end weight or focus.
Insect borers often attack trees that are weakened or damaged by other causes. In some cases, borers and plant pathogens are associated with the same canker. Leaf drop Leaf drop is generally caused by plant pathogens or environmental problems.
Canker, caused by a type of fungus, begins by infecting the bark and proceeds to the interior of the tree. Leaves turn yellow and drop and it is common to see eucalyptus trees dropping their branches as the disease takes hold.here is little to be done for eucalyptus tree diseases these fungi cause. Preventing the spread of disease should be a priority. Burn all damaged wood immediately and disinfect any equipment used.