yO MONTANA EXPERIMENT STATION 



The Black Cherry Aphis (Mj/ziis cerasi Fab.). The blac.< 

 cherry aphis which attacks the fohage (if cherries on the underside i.-> 

 g^radually increasing- in ?>ioptana. Up to this season it has been 

 known only on the west sic'- of the divide, but was found this year 

 in Carbon County. It is an insect wdiicli should not be overlooked 

 by our fruit growers. 



The Woolly Aphis (Schizcmcu !■<( hrnidcrd Hausm). The woolly 

 aphis has for several years been on the increase in the Bitter Root val- 

 ley, especially at the upper end. and has reached a point wdiere it de- 

 mands attention. Tn some of the fruit growing states of the North- 

 west it is considered almost as serious a pest as the codling moth, — 

 not that it damages the fruit trees seriously, but it occurs in such 

 abundance, smearing the clothing and even the fruit at the t'me 

 of picking, as to amount to a real nuisance. It is not easily c ^.n- 

 trolled and for this reason some localities have abandoned all at- 

 tempts to control it. A\'e are urging upon our fruit growers the 

 importance of keeping it under control rather than allowing it to 

 spread and become more and more destructive. 



The Cabbage Aphis (,lphj)^ hrassicac L.). One of the principal 

 insect pests of the State, regarding which inquiry was frequentlv 

 made, is the European cabbage aphis, found on cabbage, cauliflower, 

 and turnij)s. This is one of the insects which has been present 

 year after year and which demands further attention from this office. 

 We have for some years been making observations and experiments 

 and in time will issue a circular on this subject. 



The Sugar Beet Root Louse { I'ciii phhjiis hcfac Doane). All 

 things considered, this was probably the leading insect pest of sugar 

 beets in Montana this year. It was very prevalent and was the occa- 

 sion of a considerable amount of correspondence. The beet crops of 

 the Yellowstone Valley were affected by its presence. This is one 

 of the insects which is having special attention under the Adams 

 Fund. 



STATUS OF THE BEEKEEPING INDUSTRY IN MONTANA. 



It is roughly estimated on good authoritv that the average- 

 value of the annual production of honey in the United States is 

 about $20,000,000.00 and of wax about $2,000,000.00. As indicated 

 by the correspondence received at the Experiment Station, there 



