10 Aug., 19 18. J "Black :Spot" and "Leaf Curl. 



485 



Statesman Blossom — when first spray should 

 i be applied. 



used, and each gave equally good results. The cost of material works out 

 at threepence (3d.) per tree. 



The dates on which the different varieties were sprayed are given 



below, not as a guide, 

 but as showing tlie time 

 when the buds were more 

 green than pink, which was 

 the condition of the trees 

 when the first spray was 

 applied. The second spray 

 was given when the centre 

 ilowers of the blossom cluster 

 were fully open. (See photo- 

 graphs on page 484-5). 



We are of opinion that 

 the time of spraying is more 

 important than tlie fungicide 

 used, provided the mixtures 

 are properly made and tested. 

 While making this statement, 

 we must point out that the 

 result obtained from lime 

 sulphur last season was very 

 much better than that ob- 

 tained from Bordeaux, 6.4.40. 

 The foliage looked healthier, 

 and remained longer on the 

 trees ; the skin of the fruit 

 had a better colour, and was 

 clearer and sappier looking. 

 We would like to impress 

 on growers the necessity of 

 having all the cultivation 

 done before spraying is com- 

 menced. The reason for this 

 is that the resting spores 

 have developed in the fallen 

 diseasef^ leaves of the previous 

 season, reaching maturity at 

 the time the apple and pear 

 trees are coming into bloom. 

 Under favorable weather 

 conditions, they are thrown 

 out in countless numbers, and 

 are carried by air currents 

 into the young leaves and 

 fruits, where they germi- 

 nate and infect the crop. 



Cultivation should not be resumed till all danger of infection is past. 



This- period will vary in different districts and under different weather 



conditions. 



Statesman Blossom — when second spray should 

 be applied. 



