SPJJAYINU IN NEBRASKA. 253 



lias the appearance of milk, when it may be added to the 

 Bordeaux. 



Third Spraying. — The third application should be made 

 about three weeks after the second (usually early in June). 

 It is directed against codling-moth, scab, and leaf diseases. 

 It is not considered so important as the first two applications 

 or as the fourth. Although each of the four applications is 

 essential for the very best results, if any are to be omitted 

 this should be the one. It probably is of more benefit to the 

 tree than to the fruit. The same formula as for the second 

 application should be used. 



Fourth Spraying. — This spraying is made from six to 

 seven weeks after the third spraying (late in July as a rule). 

 As the second brood of codling-moth is emerging from the 

 eggs about this time, this application is considered very im- 

 portant, especially for the winter varieties. A weak formula 

 of I>ordeaux (2-2-50) Avith the usual amount of arsenate of 

 lead should be used. 



Fifth Spraying. — A fifth application is not always neces- 

 sary. If the former applications have been thorough and the 

 tree and fruit are apparently free of insects and diseases this 

 spraying nuiy be dispensed A\ith without serious results. 

 However, if heavy rains fall sliortl}' after the fourth spray- 

 ing has been made, it is advisable to make the fifth applica- 

 tion, usually about three weeks after the fourth. IJordeaiix 

 may be omitted, using 2 pounds of arsenate of hnid to 50 gal- 

 lons of water. 



remarks. 



While in the foregoing discussion codling-moth and apple 

 scab are the only pests mentioned, they are by no means the 

 only pests that our orchards are infested with, and not the 

 only ones held in check when spraying is done as recom- 

 mended. Rusts, rots, mildew^s, etc., are to a great extent 

 either prevented or kept down^by the Bordeaux, although it 

 is directed mainly against apple scab. And the lead arsenate 



