ipip 



BETTER FRUIT 



Page 21 



First — In spring before growth starts. 

 Use lime-sulphur diluted at the rate of 

 IV-i gallons in 50. 



Second — When new shoots are six to 

 eight inches high. Use lime-sulphur 

 diluted at the rate of 1% gallons in 50. 



Third — Just before blooming period. 

 Use lime-sulphur diluted at the rate of 

 11/4 gallons in 50. 



Clean cultivation should be practiced. 

 Weeds in the rows will hold moisture, 

 making conditions favorable for an- 

 thracnose development. The bearing 

 canes should be removed as soon as the 

 fruit is harvested. 



Credit is due T. A. Farrand of Eaton 

 Rapids and E. W. Potter of Leslie for 

 their co-operation in this work. 



Dry Sulphur Preparations vs. 

 Lime-Sulphur Solution 



Insecticide and Fungicide Lal>or;itory. Agricultural Experi- 

 ment Station, University of California (Berlteleyi. Nov..l'.']H. 



THERE are two types of dry sulphur 

 compounds on the market as sub- 

 stitutes for the well-known com- 

 mercial or home-made lime-sulphur 

 solution. The many conveniences in 

 marketing and handling a dry substance 

 are self-evident, but should not be taken 

 advantage of at the sacrifice of efliciency. 

 The additional cost of convenience is a 

 point that must be decided by the user 

 himself. 



If intended for use as a winter spray 

 against scale insects, a sulphur prepara- 

 tion is evaluated on the basis of the 

 percentage of sulphur combined in the 

 form of polysulphides and thiosulphate. 

 The uncombined sulphur might also be 

 included in the evaluation of these pro- 

 ducts when they are to be used against 

 red spider, mildew or other pests for 

 which sulphur is known to be effective. 

 The following will indicate the 

 amount of the dry preparation to use 

 as the equivalent of one gallon of 

 commercial 33° Beaume lime-sulphur 

 solution. In order to give the dry 

 materials the benefit of the doubt, the 

 uncombined sulphur is included in the 

 calculations. The figures are based on 

 analyses made by the laboratory. 



Total Cost of 

 Active 100 lbs. 

 MATERIAL Sulphur Active 

 (Approx.) Sulphur 

 Lime-sulphiir solu- 

 tion (33° B.) 26% % 803 



Average retail price $11.26 per barrel. 



Soda-sulphur 57% 14.03 4.9 " 



Average retail price $8.00 per cwt. 

 Lime-sulphur (dry) . 55% 18.90 5.0 " 

 Average retail price $10.40 per cwt. 



Soda-Sulphur. 



One of these types may be spoken of 

 as alkali polysulphides, of which Nia- 

 gara soluble sulphur compound may be 

 taken as typical. Older materials of this 

 type are sold under the names "Sul- 

 phide of Soda," "Sulphide of Potash," 

 "Liver of Sulphur," etc. The alkali 

 polysulphides are compounds of either 

 soda or potash and sulphur. These ap- 

 pear to be effective as a substitute for 

 iime-sulphur solution. Aside from con- 

 venience in handling, they possess ad- 

 vantages over lime-sulphur solution as 

 follows: 



Soaps can be used with them as a 

 spreader if desirable. 



They are also compatible with soap- 

 oil emulsions. 



Amount 

 Equivalent 

 to 1 gallon 

 Lime- Sulphur 

 Solution 

 1 gal. weiRhs 

 10.78 lbs. 



Did You Read the Article on 



NITRATE OF SODA 



Experiments in December Issue 

 Better Fruit Covering Report of 

 ;■ Gordon G. Brown, Horticulturist 

 !;^:„^ Hood River 



He reports: * * * Response from the use of two 

 successive annual applications Nitrate of Soda 

 fertilizer in early March of five or six pounds 

 per tree was at once very satisfactory in that 

 trees quickly regained their lost balance. * * * 

 The percentage of fruit set doubled and 

 trebled in many instances while larger 

 yields of better fruit were in proportion. * * * 



Remember, its ttie 15% NITROGEN equal to 

 18% AMMONIA immediately available THAT 



DOES THE WORK. WrUe for Free Literature. 



[, Nitrate Agencies Co. 



Hoge Building, Seattle 



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