STATE POMOLOGICAL SOCIETY. 35 



guarantee that thorough spraying, followed for a few years, 

 the infestation will be cut to at least one-half of one per cent. 



We found the spray formerly recommended for bud-moth, 

 applied when the buds are swelling, to be practically worthless 

 as a control. We also found that a spray applied from one to 

 five days before the blossoms open would control more bud- 

 moth than any other spray we could find. This is accounted 

 for by the fact tliat the larvae, after the bud unfolds, is con- 

 stantly tying down new leaves and, if we have these young 

 leaves coated with poison before they are tied down, the larvae 

 feeding on them will be poisoned. We also find that the cod- 

 ling moth spray, applied immediately after the blossoms, con- 

 trols a large number of bud-moths. 



This year we tested the new Friend drive nozzle, at a pressure 

 of 200 to 225 pounds, on bud-moth and we found that the coarse 

 driving spray produced by this nozzle increased our control of 

 bud-moth immensely. Where we used the same solution, under 

 the same pressure and on the same varieties, once before the 

 blossoms, with a nozzle of the ordinary misty or Whirlpool 

 type, we got 51 apples set in 100 blossom clusters. Where we 

 used the drive nozzle, we got 122 apples set in 100 blossom 

 clusters infested with bud-moth. A large proportion of this 

 increased set proved false, as would be expected, since the 

 cluster was weakened to a certain extent by the work of the 

 bud-moth before the spray was applied. The amount of fruit 

 picked has not shown this diflference, partly due to conditions 

 which entered into the experiment later in the season, so nulli- 

 fying the result of the drive nozzle on the bud-moth. But 

 the difference in set, taken ten days after the blossoms fell, 

 demonstrates the superiority of the drive nozzle over all others 

 in bud-moth control. 



This year, for the first time, we tried some of the powdered 

 arsenate of lime against arsenate of lead, on the bud-moth, 

 with gratifying results. We found that it killed more bud- 

 moths and also killed them more quickly than the arsenate of 

 lead. For a heavy infestation of bud-moth, I would, therefore, 

 recommend the use of the drive nozzle with a pressure of 200 to 

 225 pounds from one to five days before the blossoms, using 

 as a poison two and one-half to three pounds of arsenate of 

 lead or three-fourths of a pound of arsenate of lime to 50 



