520 



STATE BOARD OF AGRICULTURE. 



nicotiiJc in just before applying, and be sure to omit the soap in I his 

 case. An early spring with warm, dry weather following is unfavorable 

 to the lice, and a cold, wet, late spring is favorable to the lice. In seasons 

 such as the latter, spraying is almost imperative. As both tliese insects 

 feed by sucking the sap from tiie foliage and from the fruit, it is neces- 

 sary to use a contact spray and the safest contact spray, besides being 

 the only one that can be mixed with lime-sulphur or Bordeaux, is nico- 

 tine-sulphate. 



Fig. 3. — Bud-lice on apple just as leaf-buds are breaking out in spring. This condition 



closes the time for dormant sprays. 



Fire Blight, Fire Blight is sometimes a serious disease in apple trees. 

 A constant watch should be kept for its appearance from the time the trees 

 blossom until the end of the growing season. For a description and 

 method of control see "Treatment for Pears." 



GENERAL TREATMENT FOR SPRAYING PEACH ORCHARDS. 



Peach orchards of Michigan may require spraying while thej'^ are 

 dormant for two troubles. Scale-insects may be found. Inspect the 

 trees as is directed for apples. Peach Leaf-curl is a very common and in 

 some seasons a serious disease. (The leaves curl and drop off with the 

 young fruits.) It is especially serious on tlie Elberta, and in foggy 

 regions near lakes. If scale is found and a spraying can be applied be- 

 fore the buds swell and the bud scales open, this one treatment will 

 destroy the scale and effectually prevent the leaf-curl. Use strong lime- 

 sulphur. If scale is not found, make a spraying for the leaf-curl when 

 the tree is dormant in late fall, winter, or early spring. Use 11/2 gallons 

 of lime-sulphur of 33° Baunie with enough water to make 50' gallons. 

 The disease cannot be controlled if the spraving is not done before the 

 buds begin to swell. 



