52 ^HE CONNECTICUT POMOLOGICAL SOCIETY. 



fects of freezing and thawing. Attention is called by several 

 growers to the fact that buds on high-headed trees usually 

 suffer less from spring frosts. 



VII. 

 Are Windbreaks a Protection to Trees or to Buds? 

 There was much difference of opinion. From the expe- 

 riences given it seems that the value of a windbreak depends 

 largely upon the topography of the land. A windbreak so sit- 

 uated as to form still air can only be detrimental so far as 

 cold is concerned. So planted as to deflect or to cause air 

 currents they become of value in keeping off frosts. More 

 often than not, however, it was claimed, they seriously check 

 atmospheric drainage and the damage by frost is increased. 

 Another disadvantage is, should the windbreak be to the north, 

 the buds on the trees thus sheltered are forced and are there- 

 fore more liable to injury by late frosts. The testimony was 

 for the most part unfavorable to windbreaks. 



VIII. 

 What Degree of Cold Will Kill Peach Trees? 

 There was a most surprising uniformity in the answers 

 to this question. Nearly all of the correspondents set 20° 

 below zero as the temperature that will kill the peach tree 

 under normal conditions, though some had known them to 

 withstand temperatures of from 20° to 30°, depending upon 

 the condition in which the trees went into winter. The fol- 

 lowing are the conditions unfavorable to withstanding cold, 

 and "about in order of the frequency in which they are men- 

 tioned : Lack of maturity of wood ; lack of protection of 

 roots by snow or cover crops ; poor soil drainage ; overbearing 

 in the preceding crop; lack of vitality from ravages of insects 

 ov fungi ; and the susceptibility of the variety to cold. 



IX. 

 What Degree of Cold Will Kill Peach Buds? 

 From the answers to this question we are forced to con- 

 vclude that much more depends upon the condition of the buds 



