Direct coating of the trunks of newly set trees with the aluminum paint, without the use of wax, was also tried with satisfactory results. Applied direct to the dormant buds of the sweet cherry, however, it proved toxic, as the buds never developed. This was no doubt due to the bronzing liquid rather than to the aluminum.
The material is very easily applied, either with a brush or spray, and makes a silvery, impervious and very durable coating. It should be completely effective as a preventative of sun-burn of the bark of tender species, especially to cover the creosote applications sometimes used by tree surgeons. Such black coverings often defeat their purpose in the hot sun by killing the living tissues by the absorption of the sun's heat.
At the present time manufacturers are being corresponded with looking to the development of a bronzing liquid that shall be non-toxic to buds.
Now if some investigator will come forward with a non-toxic, water soluble coating material for the roots of nursery stock, Professor Neilson's dream will be fully realized.
Last year Mr. Homer Jacobs of the Davey Tree Expert Company gave us a very excellent report of his company's experiments with various coatings used in connection with the moving of large trees. It is to be hoped that they will add aluminum bronze paint to the list of materials tested, and give us the benefit of their findings at our next convention.
In the meantime, the private experiments mentioned will be continued.
d. A publicity stunt for the furtherance of nut culture is being tried in the way of vases filled with sprays of Oriental chestnut, with opening burrs, displayed in the windows of our leading department store, with a showing of fall goods. A card gives credit for the display.
Judging from the enthusiasm with which the store manager and the window dresser received the suggestion, it would appear that the idea could be used almost anywhere. If living sprays were not available, a display of nuts hardy to the locality could doubtless be used in the same manner. Cards identifying the nuts and stating they were grown (or could be grown) locally would add to the interest.
It is a matter of deepest personal regret that, due to a combination of New Deal, raw deal and general lack of a great deal, I am unable to be with you other than in spirit.