18 
NURSERY INSPECTION 
the spread of pests from nurseries, but also to make a survey from year to 
year of the various counties in which are found old orchards most likely to 
be affected with some pest. Because of the fact that Holland stock is 
so very free from pests and arrives in such first-class condition, and that 
other states are not inspecting this stock, I should recommend that we do 
not inspect Holland-grown and inspected stock for greenhouse purposes, 
but the consignee should be advised to take every precaution to help us 
keep out the various pests by carefully saving all packing and refuse and 
burning same; also the boxes if they are made of old lumber; and carefully 
examining each plant for the brown tail nest or the gypsy moth egg mass. 
As before stated, we should be advised of the arrival and receive the num- 
ber of cases and their identification number. 
During the past season, the usual insect pests were in evidence, although 
the poplar beetle (Melasoma scripta) did not do as much damage as in 
former years, partly due to the seasonal weather conditions and partly due 
to improved methods of control which some of our nurseries employed. 
A pest which has not been in evidence to any extent heretofore (found 
in nurseries in southern part of state previous to this F. L. W.), but which 
was very abundant this year, was the woolly aphis which was found on 
apple, mountain ash, hawthorn, and elm. The oyster shell scale is abun- 
dant in some localities, although it has apparently done no great amount of 
damage where found. It is easily controlled and should be exterminated. 
Plum and apple aphis were also abundant and the red-humped caterpillar 
on apple was found several times. The snowball and high bush cran- 
berry in most cases were affected to an extreme extent with green aphis. 
The raspberry Byturus was, as always, very much in evidence, as were mites 
and aphids on boxelder. One or two cases of saw fly on blue spruce, both 
Fosters and Colorado, were reported. 
The following list gives the record of the various pests and host plants 
which were found in nurseries during the last season: 
On Apple 
Aphis 
Buffalo tree hopper 
Oyster shell scale 
Red-humped apple-tree cater- 
pillar 
Round-headed apple l^orer 
Saddle-back caterpillar 
San Jose scale 
Trumpet leaf miner 
Scurfy scale 
Woolly aphis 
Ash (Green) 
Aphis 
Ash (Mountain) 
San Jose scale 
Woolly aphis 
Boxelder 
Mite work 
Aphis 
Compass Cherries 
Red-humped apple-tree cater- 
pillar 
Currant (Red) 
Aphis 
Saw fly 
Elms 
Cockscomb gall 
Aphis 
Scurfy scale 
Woolly aphis 
San Jose scale 
Grapes 
Phylloxera 
Lilac borer 
Plum 
Aphis 
Black aphis 
Curculio 
Red-humped apple-tree cater- 
pillar 
Scurfy scale 
Poplar 
Poplar beetle 
Raspberry (Red) 
Byturus 
Snowy tree cricket 
Snowball 
Aphis 
Spirea 
Aphis 
Strawberries 
Leaf curler 
Nematodes 
White Pine 
White Pine blight (Aphid) 
Willow 
Aphis 
Poplar beetle 
