Tprp 



BETTER FRUIT 



Page 41 



Comparative Results, Etc. 



Continued from page 5. 



The information procured from the 

 standpoint of codHng-moth control dur- 

 ing the past three years is also more or 

 less irregular. Years that are favorable 

 for scab development are usually unfa- 

 vorable for the development of the 

 codling moth. The information ob- 

 tained in 1916 was practically nil. Gen- 

 erally speaking but one generation of 

 the worms appeared in the Hood River 

 Valley that year owing to cold weather 

 that prevailed practically all summer. 

 During that season at harvest time but 

 1.2 per cent infestation was present on 

 the unsprayed trees at the time the fruit 

 was picked. (The first brood infesta- 

 tion was not checked, apples from 

 which dropped and decayed.) On the 

 dusted block an infestation of 1.9 per 

 cent, or more than that observed on the 

 dusted trees, was recorded, while no 

 worms were found on the sprayed trees. 

 The percentages are so small as to be 

 within that allowed for experimental 

 error and cannot be considered as 

 reliable. 



In 1917 dusting work was continued 

 in three different orchards. This sea- 

 son proved a good one for codling-moth 

 development, worms continuing active 

 right up to picking time. The results 

 obtained, however, in the final analysis 

 are to a considerable degree contra- 

 dictory. As indicated by the degree of 

 infestation in the different orchards on 

 the unsprayed check trees the crop of 

 over-wintering worms was quite vari- 

 able. During the season in checking 

 up the worm injury both stings and 

 actually wormy apples were tabulated, 

 giving as a result total worm injury. In 

 one orchard the unsprayed trees de- 

 veloped 72.56 per cent worm injury, 

 54.49 per cent of the fruit being actually 

 wormy and the balance stings. The 

 fruit on the dusted trees, which was 

 given six applications of arsenate of 

 lead, developed a total worm injury of 

 4.05 per cent — 8.99 per cent of which 

 was actually wormy. In the sprayer 

 block 14.87 per cent occurred, of which 

 but 1.62 per cent contained living 

 worms or apples in which they had 

 entered. The dusting in this orchard 

 was very carefully done by the writer — 

 as was the case of all of the dusting 

 work — and the results seem to indicate 

 that the dust is much less effective 

 where there is present a severe infesta- 

 tion with which to contend. In another 

 orchard the check trees developed 42.34 

 per cent infestation with 24.07 per cent 

 actually wormy. The dusted trees de- 

 veloped 24.73 per cent injury with 6.48 

 per cent actually wormy. On the 

 sprayed trees in this orchard 8.93 per 

 cent worm-injured fruit was found, of 

 which but 1.83 per cent were fruits in 

 which worms had entered. The aver- 

 age orchardist would not consider con- 

 trol of this degree on the part of the 

 dust sufficiently effective to warrant its 

 use. In the third experimental orchard 

 during 1917 the infestation was very 

 light; the check trees developing 6.8 per 

 cent injury, of which only 2.71 per cent 

 were actually wormy. This loss was 

 reduced to 2.34 in the dust area, while 



CopyrlBht «919 



by R. J. ReynoldJ 



Tobacco Co. 



Toppy red bag», tidy 

 red tins, handsome 

 pound and half pound 

 tin humidors — and — 

 that clever, practical 

 pound crystal glass 

 humidor with sponge 

 moistener top that keeps 

 the tobacco in such 

 perfect condition. 



YOU can't help getting jim- 

 my pipe or cigarette makin's 

 happy every time you fire up 

 with Prince Albert — it pleases 

 you so fair and square. You just 

 can't get enough hours in the days 

 and nights to put to smoking 

 purposes. That's the situation 1 



It's never too late to hop the 

 fence into the Prince Albert 

 pleasure-pasture! For, P. A. is 

 ready to give you more tobacco fun 

 than you ever had before. That's 

 because it has the quality, the 

 flavor and the fragrance ! 



Soon as you know Prince Albert 

 you'll say that P. A. did not bite 

 your tongue or parch your throat. 

 And, it never will! For, our 

 exclusive patented process cuts 

 out bite and parch and lets the 

 man with the touchiest tongue 

 simply smoke his fill all the time. 



R. J. Reynolds Tobacco Company, Winston -Salem, N. C. 



the adjoiing sprayed trees developed 

 worm injury to the extent of 3.27. 



In 1918 the dusting work was con- 

 tinued in but two orchards; the last 

 two above described. In neither or- 

 chard was the presence of worms 

 excessive. The fruit on the unsprayed 

 check trees in one orchard developed 

 16.85 per cent worm injury (stings and 

 wormy fruit), while on the dusted and 

 sprayed trees 5.17 and 4.6 per cent, re- 

 spectively, occurred. In the second 

 orchard 21 per cent occurred on the 

 unsprayed trees, while a loss of 4.92 

 and 1.14 per cent occurred on the dusted 



and sprayed trees. Control for 1918, 

 then, could be considered very satis- 

 factory from the standpoint of both 

 methods. 



In summarizing the results of the 

 three years' work, it was observed, with 

 the exception of one orchard, during 

 one season the control obtained with 

 the dust must be considered quite 

 effective, though in but one or two in- 

 stances did the results equal that ob- 

 tained by the liquid. 



Careful records have been kept rela- 

 tive to comparative costs of operation 

 and materials from the standpoint of 



