. Circular. Agriculture; Agriculture -- United States. PRESENT STATUS OF THE WHITE-PINE BLISTER RUST. 13 trees had hundreds of distmct spore bodies. There was no (^-idence of these trees having been infected since reachmg this country. The affected area was just below the lower branches, where it nearly always is found in newly imported trees bearmg fruiting bodies of the fungus when received at the port of entry. These trees had not borne fruit- ing bodies in previous years, since the bark of the affected area was not scaly, as it is where fruiting bodies have previously been produced, and, f
. Circular. Agriculture; Agriculture -- United States. PRESENT STATUS OF THE WHITE-PINE BLISTER RUST. 13 trees had hundreds of distmct spore bodies. There was no (^-idence of these trees having been infected since reachmg this country. The affected area was just below the lower branches, where it nearly always is found in newly imported trees bearmg fruiting bodies of the fungus when received at the port of entry. These trees had not borne fruit- ing bodies in previous years, since the bark of the affected area was not scaly, as it is where fruiting bodies have previously been produced, and, furthermore, since all visibly diseased trees had been destroyed in previous years. So far as could be ascertamed the disease had lain dormant for five years in these trees, only to break out with the most profuse production of fruiting bodies yet seen in this country. In 1909 ^ the writer concluded, from data af- forded by numerous papers of European writers (which was the only available information), that inspection of diseased plantations for a few years might result in the fhial eradication of the dis- ease, and this procedure was recommended rather than the more drastic one of total destruction of infected plantations. Smce that time personal mvestigations, such as above described, have in- dicated that this ])rocedure is not proving as effective as desired. In the light of the above results it seems best to recommend the total removal and destruction of diseased plantations wherever possible. It is recognized that there are diseased plantations which it may be impossible to destroy, but these are few m number. Mere unwillmgness or tem- porary mexpediency should not be substituted for impossibility in considermg this matter. This does not necessarily mean that every plantation must be destroyed ui a smgle year. The values involved and the number of trees are so large that it would be unwise for those States which have the larirest numbers to undertake to replace all the dis
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