32 



become a sickly yellow color and drop off, thus interfering with the plant's power 

 to store up food for the coming season. 



Fig. 17. — Powdery Mildew of Gooseberry. (After Close.) 



Means of Control. — A'ery few careful tests of control measures have been made, 

 but there is little doubt that the first three applications mentioned above for the 

 control of gooseberry mildew, followed by a fourth application as soon as possible 

 after the crop has been harvested would control the disease. Bordeaux mixture 



Fig. 18. — Currant Anthracnose on Leaf. 

 (After Duggar.) 



4-4-40 or lime sulphur may be used. If the latter is chosen the first application 

 may be at the strength mentioned above for mildew, but the second application need 

 not be stronger than specific gravity 1.010 (commercial 1 gallon diluted to 30), nor 

 the third than about 1.009 (commercial 1 gallon diluted to 33 to 35) nor the fourth 

 than about 1.008 (commercial 1 gallon diluted to 35 to 40). 



