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That, except for size, the apple maggot and the blueberry maggot 

 are even more alike than so-called identical twins? In all stages of de- 

 velopment, egg, larva, pupa, and adult, according to F. H. Lathrop, Maine 

 Entomologist, the blueberry maggot is two-thirds as large as the apple 

 maggot. If the former is transferred to an apple it is able to attain 

 full development, while an apple maggot may require two or three blueberries. 

 This raises the question whether or not a large fruited variety of cultivated 

 blueberry may provide a suitable food supply for the apple maggot even though 

 the wild blueberry can support only the smaller strain of this insect. 



That, under certain weather conditions, fire blight may be trans- 

 mitted by the wind? Although insects have long been considered as the sole 

 disseminating agents, recent experiments have shown that the bacteria may 

 ooze out in the form of long, slender, gelatinous filaments which dry into 

 hair-like strands and are broken off and blown away. Just how far the 

 strands may be blown, how long the bacteria remain alive, and how import- 

 ant these structures are in the spread of the disease have not been determined. 



That Mcintosh twig growth has in some cases been killed by apple scab? 

 According to Donald Folsom, Maine Plant Pathologist, "The only way to prevent 

 scab infection of the new twig growth is to keep the twigs covered with a 

 fungicide until midsummer, when the elongation has stopped and the bark has 

 reached a certain stage of maturity. Sulphur dust has proved somewhat better 

 than other fungicides." 



That the Golden Jubilee of the Delicious apple is being celebrated 

 this year and the Elberta peach has now reached its 75th birthday? If, accord- 

 ing to J. K. Shaw, 50 years are required for an apple variety to justify it- 

 self, the Cortland will be on trial for a few more years. The original Ben 

 Davia x Mcintosh cross was made in 1898 but the seedling did not fruit until 

 1906 and was not generally introduced until 1915. This variety fruited for 

 the first time in the College orchard during the early 20's. 



That a definite relation exists between the color of apple leaves in 

 late summer and the nitrogen content of the tree? Since the supply of ni- 

 trogen in late summer has a definite bearing on fruit color, it is reason- 

 able to assume that apple growers will in future years become more conscious 

 of the shade of green in the leaves as an indicator of the nitrogen needs the* 

 following spring. 



That the Food and Drug Administration has adopted a tolerance of DDT 

 on fruits similar to that of lead and fluorine? On the basis of available 

 data there is general agreement that DDT is not more toxic than either lead 

 or fluorine. The informal tolerance for lead on apples and pears is 7 milli- 

 grams per 2,2 pounds. 



