- 7 - 



raspberry canes lose a certain degree of their resistance to low temperatures follow- 

 ing several days of mild temperatures e (2) The canes may regain some of their cold 

 resistance if the mild weather is followed by gradual changes to colder weather, (3) 

 Attempts to determine the chemical physical changes v/hich are responsible for the 

 loss and gain of hardiness have not as yet been successful* (U) Injury to the canes 

 which appears the same as winter killing may occur during periods when the ground is 

 frozen and high winds dry out the canes. This type of injury is probably more fre- 

 quent, in years when the ground is frozen to a considerable depth and high winds occur 

 when the temperature is above freezing. This year we had such weather and it probably 

 accounted for much of the observed injury to our raspberry canes, V/e had more injury 

 to red raspberry canes this past winter then in 19^h, although we had lovrer minimum 

 temperatures in 19Sh than in 1955 • 



The follovfing table compares tfae cane injury in 195k and 1955 for some of the 

 varieties in our plantations. 



We have not found any practical means as yet to reduce the amount of winter 

 injury to red raspberry canes but we have hopes that as we find out more about the 

 nature of winter hardiness vce can find ways to reduce the injury, 



^HHfVf .D.TiTeeks 



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THE "tJILLER BILL" BECOMES EFFECTIVE r. 4^ ^ * 



■«- * -;f- ^ This Story Is for YOU— A Grower 



Pesticide residue tolerances and exemptions, as established under Public Law 518 - 

 the "Miller Bill", become effective on July 22, 1955* Every farmer, and especially 

 ycu who are growing fruits and vegetables, should be aware of this. It can protect 

 you from mistakes. Ignorance of the law is always a poor alibi. 



This amendment to the Federal Food, Drug and Cosmetic Act is designed to pro- 

 tect the public welfare - the well being of your consumers. And what's good for the 

 people who buy and eat your products is good for you also . 



That is why this Miller amendment \Tas backed by your farm leaders and the 

 pesticide industry as well as by those who believed the consuming public needed more 

 protection against the misuse of pesticide chemicals. 



