In Pennsylvania, following the first outbreak, peach-growing all but disappeared, to reappear again from time to time in new regions or in old ones following an interval of years after a plague had passed. Periods and places of epidemics are indicated by such quotation as follow: Wm. G. Warren, Centre County, reports in 1851: "A majority of the peach trees have been destroyed by the yellows."[218] In the proceedings of the American Pomological Society for 1852, a Pennsylvanian reports for the State: "Peaches have done but ill with us for some years past. The yellows have swept off thousands of trees."[219] In 1880 in a book on the peach, Rutter devotes many pages to yellows in Pennsylvania and speaks of "thousands of trees dead and dying from the disease in Chester and Delaware counties."[220] The epidemic in the eighties seems to have been particularly severe, there being at the end of the decade but 1,146,342 bearing trees in the State which by 1900 had increased to 3,521,930 trees. Perhaps of all states, in proportion to area planted, New Jersey has suffered most from yellows. Beginning with the epidemic mentioned by Coxe in 1817, there have been several disastrous irruptions of the disease in that State. A particularly destructive epidemic must have raged in the early forties, for in 1846 W. R. Prince, Flushing, Long Island, says:[221] "Any one who visits the once splendid peach orchards in various parts of New Jersey will be struck by the desolate aspect of innumerable plantations of dead trees, with only here and there a sprig of verdure amid the mighty mass." Another writer, Colonel Edward Wilkins, says: "Fifty thousand acres in peach trees, in two counties only, had been destroyed by the yellows prior to 1850;" and in 1858, he further states that "at that time nearly the whole of the peach orchards of New Jersey had been destroyed by yellows."[222] He concludes, in the same article, that "in New Jersey the peach belongs to the past." We choose as the last of the many accounts of disaster from yellows in this State two quotations from Professor P. D. Penhallow written in 1882:[223] "In New Jersey, where the ravages of the disease have been more seriously felt than elsewhere, the southern counties were formerly the center of the peach industry for the entire State, but, owing to the prevalence of the yellows the peach orchards have been gradually moving northward, until at the present time the counties of Morris and Hunterdon have the largest interest involved, and the prospect is that a few more years will see even these localities deprived of the industry." "The peach growers of New Jersey consider an orchard worth nothing after the age of nine years. At that time they root out all the trees as they would so many corn stumps, and use the land for general crops, planting a young orchard of seedlings each year to make good the loss."