424 THE MAGAZINE OF HORTICULTURE. 



LIME AND SULPHUR FOR THE CURCULIO AND BLACK KNOT. 



BY THOS. W. LUDLOW, YONKERS, N. Y. 



My remedy of lime and sulphur has not only proved en- 

 tirely successful for the past five years, in preventing the 

 attack and also destroying the egg of the curculio when it 

 had been deposited in the fruit, and thus securing it from 

 falling off, but has also proved a preventive for the " black 

 knot." The compound is this : — 



Mix a barrel of whitewash of unslaked lime, such as is 

 used for whitewashing walls, and add twelve pounds of flour 

 of sulphur. Stir and mix well and let it stand two days ; 

 then apply with a spouted syringe without rose on nozzle, 

 but a flat of tin so placed as to flatten the stream as it passes 

 out ; this prevents any stoppage, and the friction being much 

 less than with a rose, a greater height may be overcome. 



The syringing is continued for four weeks, every other 

 day, commencing when the blossom has fallen, and is facili- 

 tated by pumping and forcing directly out of a water barrel 

 placed between two wheels. The sediment of the first bar- 

 rell will answer for the second and third by filling with 

 water, and adding the same quantity of sulphur, without any 

 addition of lime. 



Presuming that many of your readers have not perused the 

 Horticulturist, I send you this. 



N. B. The syringe used is a large upright one, with a 

 pipe attached ; this is set into a pail, and throws the water 

 with much force on to the tree. 



We should be glad to have some of our amateur cultivators 

 try Mr. Ludlow's remedy. He assures us that his crop of 

 plums is so heavy this year as to completely weigh down the 

 branches of the trees ; and that not a black knot is to be 

 seen. His success has been so great that we requested him 

 to send us his mode of mixing and applying the wash, and 

 he has kindly acceded to our request. — Ed. 



