204 MEETINGS OF HORTICULTURAL INSPECTORS. 
the acceptance of inspection certificates from other States, this subject was 
discussed at length, and the opinion was unanimously expressed by the confer- 
epce that State inspectors should accept the inspection certificates of other 
States issued by authorities legally constituted for that purpose, as prima facie 
evidence of the facts therein set forth. It was not intended by this statement 
to prevent or discourage a supplementary inspection of certified stock if, in the 
judgment of any inspector, special conditions might make this necessary. 
“2. On comparison of the practice of different State inspectors, wide differ- 
ences were found in the time during which nursery inspections are made, due 
principally to differences in local condition or business methods in different 
parts of the country. After full discussion it was decided that the period of 
inspection should be determined in each State at the discretion of the inspector ; 
but it was agreed that all peach stock should be inspected as late in the season 
as practicable, particularly where the surroundings were such as to cause sus- 
picion of the occurrence of the San Jose scale, or where the origin of the buds 
was either suspicious or unknown. In such cases, if the nursery was inspected 
early a late supplemental inspection of the peach stock should be made. 
“3. With respect to a nursery some sections of the stock of which is so in- 
fested or infected as to make its sale objectionable, but not in a way to damage _ 
or endanger the remainder of the stock, the practice adopted in Illinois was 
approved and recommended to all inspectors. Under this practice a nursery- 
man, some of whose stock is infected, for example, with the crown-gall, the 
remainder of it being free, is given a certificate which reads as follows: ‘ This 
is to certify that the nursery stock which bears this certificate, grown upon the 
nursery premises of , situated . has been,’ ete. This certificate is 
issued with the limitation, expressed in writing, that it is not applicable to any 
of the stock to which objection is made, and on the written promise of the nurs- 
eryman receiving it that it shall not be so applied. 
“4. With respect to a ferm of certificate for dealers in nursery stock who do 
not own nursery premises, but wish a certificate from their own State inspector 
available for their shipments, the Iowa practice was approved, under which a 
dealer’s certificate is issued as follows: ‘ This is to certify that the nursery stock 
for sale by . of . has been inspected,’ etc. Previous to issuing such 
a certificate the Iowa inspector requires a statement from the dealer, certified 
before a notary, showing all persons from whom said dealer has purchased 
stock, and containing a promise that if stock is afterwards purchased from other 
persons than those on this certified list the inspector will be notified forthwith, 
and opportunity given him to inspect such stock before sale, if so desired. 
“5. It appeared, upon a comparison of the laws and practices of different - 
States, that ornamental trees, shrubs, and vines were generally included in the 
inspection, if grown for sale, and that strawberry plants were also inspected, if 
held for sale, in New York, Kentucky, Tennessee, Iowa, and Michigan, but not 
in Indiana and Illinois. In States having a considerable business in the sale of 
cuttings it was deemed necessary that vineyards from which such cuttings were 
sold should be inspected and certified as nurseries. 
“6. It was generally agreed with respect to the woolly aphis that gradually 
increasing pressure should be brought to bear for the reduction of this insect in 
nurseries, but that no uniform practice could be established because of wide 
differences in its abundance in different States. The New York practice of re- 
quiring the rejection and destruction of trees sufficiently infested to show knots 
on the roots was commonly approved. It was also thought well to require in- 
secticide treatment, with kerosene emuision, of roots of nursery trees whitened 
by this insect. A similar policy of gradually increasing pressure of require- 
