FRUIT IiOTES - December, 19^0 



W. K. Thies 

 Syitension Horticulturist 



Slope and Rate of Erosion 



As the slope of land increases, the velocity of water 

 running off the surface is increased and the pov/er of that ?."^ter 

 to carry soil particles is multiplied surprisingly. The follow- 

 ing rough tahle comes from engineers of the Soil Consei'vation 

 Service. 



R. A. Van Meter 



X-Disease Spreads 



In the December issue of Farm and Home Science, the 

 quarterly publication of the Utah Agr. 32^p. Sta. B. L. Richards 

 reports on X-Disease of peaches in that state. This disease was 

 found in three Utah counties in 1939 and two more were added to 

 the list in 1940 • Some orchards are reported to be very heavily 

 infected. One six year old orchard was so heavily infected that 

 the ovmer pulled all tiie trees. It is interesting to note that 

 although this disease v/as first reported from Connecticut in 1933, 

 it has nov; been found as far west as Utah. 



J. S. Bailey 



Virus DiseaS'is of Peaches 



£. A. Walker of th.e University of Maryland emphasizes 

 the importance of virus diseases of peaches when he lists the 

 following v/hich are prevalent in one or more sections o'^ the 

 country: peach yellows, little peach, red suture, resetted mosaic, 

 green mosaic, several line pattern diseases, phony peach, peach 

 rosette, peach mosaic (v/ith three or more strains of virus), 

 peach ring spot, asteroid spot, peach calico, Winter's peach mosaic 

 l3af casting yellows, and yellow-red-virosis or "X" disease. Prob- 

 ably the last is the most dangerous one for Massachusetts. Many 

 of the others, fortunately, are not a problem here. It's a good 

 thing that the U.S.A. covers an extensj.ve area so that such a mass 

 of pestilence is considerably diluted for any one section!!! 



. L. Sou t mvick 



Issued by the Extension Service, Willard A. Munson, Director, 

 in furtherance of Acts of May 8 and June 30, 1 914 • Massachusetts 

 State College, United States Department of Agriculture, and Covinty 

 Extension Services cooperating. 



