Exponential Beetle Population Explosion Phase
It is common for all the trees in a single neighborhood to die at the same time. In a typical small town/city situation, the 4-year period, from year 8 through year 11 after infestation, will see 60 - 70% of their trees die in that region. They are calling this the curve of death because on a graph that charts time and tree death after beetle introduction, the plotted line angles almost straight up during those 4 years, ending in all the local ash trees being dead. As insects migrate, new epicenters of Ash tree mortality pop up more and more frequently. These then begin to coalesce. This pattern will continue until eventually, all the ash are dead.
Read more about this topic: Emerald Ash Borer
Famous quotes containing the words beetle, population, explosion and/or phase:
“Ere the bat hath flown
His cloistered flight, ere to black Hecates summons
The shard-born beetle with his drowsy hums
Hath rung nights yawning peal, there shall be done
A deed of dreadful note.”
—William Shakespeare (15641616)
“A multitude of little superfluous precautions engender here a population of deputies and sub-officials, each of whom acquits himself with an air of importance and a rigorous precision, which seemed to say, though everything is done with much silence, Make way, I am one of the members of the grand machine of state.”
—Marquis De Custine (17901857)
“Moderation has never yet engineered an explosion ....”
—Ellen Glasgow (18731945)
“It no longer makes sense to speak of feeding problems or sleep problems or negative behavior is if they were distinct categories, but to speak of problems of development and to search for the meaning of feeding and sleep disturbances or behavior disorders in the developmental phase which has produced them.”
—Selma H. Fraiberg (20th century)