STATE POMOLOGICAL SOCIETY. I49 



every year, will soon be rid of the oyster-shell scale and all 

 other scale insects. 



Question : What percentage of the blister mite can you de- 

 stroy by the use of either lime-sulphur or kerosene emulsion ? 



Mr. Siegler: In some New York orchards they have almost 

 controlled bad cases by the use of a single application of either 

 of these materials. Arsenate of lead may be combined with 

 the lime-sulphur and applied just as the tips of the new leaves 

 appear. This will aid in controlling the bud moth. 



Question : In spraying for the bud moth, wouldn't you have 

 to spray before the buds opened at all ? 



Mr. Siegler: If you have the bud moth and not the blister 

 mite that would be advisable. If the spray application is made 

 before the buds swell, it would not be so effective against the 

 blister mite. On the other hand, if the spray is applied after 

 the buds have swollen and the tips of the new leaves are just 

 appearing, some of the bud moth larvse may have done a little 

 injury, but the mite would be well controlled by a thorough 

 application. 



Question : What is the formula for the home made lime- 

 sulphur ? 



Mr. Siegler: Fifty pounds of stone lime, this lime to con- 

 tain over ninety per cent of calcium oxide. We want a lime as 

 free from magnesia as possible, because the more magnesia you 

 have the higher will be the sludge content, and you want to 

 eliminate that. One hundred pounds of sulphur, preferably 

 commercial, ground. This should be very pure, 98 to 99 per 

 cent. Fifty gallons of water. 



Boil this material about fifty or sixty minutes, as a rule. In 

 order to determine when it is done, take a little out and pour it 

 so as to see if all the sulphur granules have been dissolved. Of 

 course small growers cannot well afford to make their lime-sul- 

 phur, but it might be made by communities. There is consid- 

 erable difference in the price in Maine between the commercial 

 lime-sulphur and what it would cost to manufacture it at home. 



Question : Have you had any experience with the Rockland 

 lime ? 



Mr. Siegler : I have not made lime-sulphur in this state. 

 You should ascertain the analysis of this lime. The higher the 

 calcium oxide content, above 90%, the better. If you get a lime 



