28 The Bulletin. 



are subject to nearly the same troubles as apples, but do not suffer so 

 much from them, and spraying does not generally give such good profits. 

 Plums, on the other hand, have almost exactly the same enemies as the 

 peach and require practically the same treatment. 



Spraying and Bees. — Honey-bees are one of the chief agents in pol- 

 lenizing our fruits, and we should use every reasonable care to do them 

 no harm. If spraying is done at exactly the proper times there should 

 be no trouble on this point, for no spraying is advised when the trees are 

 in bloom. The chief difficulty lies in the fact that many growers begin 

 the spraying for Codling Moth while the trees are in bloom in order to 

 finish in time. This is not necessary and is harmful. If the grower will 

 wait until all or practically all of the blossoms have fallen before using 

 the poisoned sprays, he will have just as good results in controlling Cod- 

 ling Moth and Curculio, and will have better results from the polleniza- 

 tion. If the trees be sprayed while they are in bloom the pollen is wetted 

 so that the pollenization is less perfect, and the petals of the blossoms 

 themselves are in the way, so that the spray does not readily reach the 

 blossom end. 



The interests of both the fruit-grower and the bee-keeper are in per- 

 fect agreement. It is a mistake for the grower to spray when the blos- 

 soms are still on the trees. Indeed, so long as there are enough active 

 and fragrant blossoms to attract bees in any number it is too early to 

 spray for Codling Moth or Curculio. Wait until the blossoms have 

 fallen, and then spray promptly. 



Fire Blight Not Controlled by Spraying. — We wish to call special atten- 

 tion to the fact that no spraying treatment is known which will control, 

 prevent, or cure the "Fire Blight" which is so often destructive to apple 

 and pear. Every spring we hear complaint of this disease killing the 

 fruiting spurs of apple, or whole limbs or whole trees of pear; and 

 growers are often of the opinion that their spraying has been a failure, 

 or if they have not sprayed, they think that spraying might have pre- 

 vented the trouble. Not so; spraying does not control Fire Blight, 

 though it is very effective against many other serious troubles. 



Those who wish special information about Fire Blight, or about other 

 diseases of plants, should correspond with Division of Plant Pathology, 

 Experiment Station, West Raleigh, 'N. C. 



The Division of Entomology of the State Department of Agriculture 

 at Raleigh, 'N. C. (which is responsible for this Bulletin) is concerned 

 primarily in the control of insect pests, and the methods of spraying here 

 described are mainly for insect control, though the mixtures are so pre- 

 pared and applied at such times as to give a great deal of protection from 

 diseases also. 



