Page Eighteen 



Control of Anthracnose 



{Continued jrom fage 12) 

 amined and showed a total of 130 cankers, 

 or 14 V9 P" "■ee. 



Plot 4 — check-plot, one tree examined 

 f ho wed 49 cankers. 



Although our work on this plot really 

 ceased with the counts made in May 1919, 

 it is verv interesting to note that the crop 

 in the fall of 1919 averaged slightly over 

 9 boxes to the tree. This increase is at- 

 tributed almo-i entirely to the new bearing 

 wood which had been developed in th'; 

 trees in the previous three years. 



Summary — In summing up the results 

 of the first three years' work the follow- 

 ing conclusions were reached: 



1. An early spray is essential. 



2. A weak Bordeaux will do the work 

 if applied early enough. 



3. The lost for 'he early spray for the 

 three years was only 14.19 cents per tree. 



4. This is higher than it need be, because 

 material was at war prices and was bought 

 in small quantities. 



5. Early varieties may be picked before 

 it is necessary to spray. 



6. It was found unnecessary to wipe the 

 fruit. 



7. Fruit was left sticky, but no com- 

 plaints were had when it was put on the 

 market. 



8. Covering of Bordeaux did not inter- 

 fere with coloring of fruit; it seemed to 

 improve it. 



9. Anthr.-icnose rot infection on the 

 fruit was controlled practically 100 per 

 cent.. Keeping qualities were also im- 

 proved. 



10. The disease can be controlled if 

 growers will onlv carry out the spraying 

 systematically each year. 



In the fall of 1919 another series of 

 experiments was outlined, as it was desired 

 to test the effect of an early application 

 of 3-4-40 Bordeaux to the King apple, a 

 variety most largely grown on Vancouver 

 Island, and one which is ready for market 

 about the end of September. 



It was also desired to test the effective- 

 ness of Burgundy mixture (1 lb. Bluestone, 

 1J4 lbs. washing soda, and 40 gallons 

 water) as an early spray and also a fall 

 application of 1 to 9 lime sulfur after 

 the fruit was picked. 



An acre of 14-year-old Kings, consist- 

 ing of 45 trees, was selected in Stewart 

 Bros, orchard, Keating, and this was divided 

 into 5 plots of 9 trees each with one tre^e 

 in each plot left as a check. 



This block of Kings had been bearing 

 very consistently up to about 1 2 years of 

 age, but in the thirteenth and fourteenth 

 years it had gone back very rapidly and 

 when it was taken over practically every 

 terminal growth was dead. An endeavor 

 was made to count the infection on the one 

 and two-year-old wood on each tree before 

 the plots were sprayed and this count 



BETTER FRUIT 



March, 1922 



showed an average of 88 cankers per tree 12 that Plot 1 was sprayed with 3-4-40 



over the entire 45 trees. This count was Bordeaux and Plot 2 was sprayed with 



much below the real infection l-lJ^-40 Burgundy. 



The first week of September, 1919, On November 6 Plot 3 was sprayed with 



was wet and it was not until September 3-4-40 Bordc.iux and Plot 4 was sprayed 



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