90 MONTANA EXPERIMENT STATION 



The Black Cherry Aphis {Myzas cerasi Fab.). The l)lac.< 

 cherry aphis which attacks the foHage of cherries on the underside !.•> 

 gradually increasing in Montana. Up t(j this season it has been 

 known only on the west side of the divide, but was found this year 

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

 by our fruit growers. 



The Woolly Aphis (Schizorteiira lani£era 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 where it de- 

 mands attention. In 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 clotliing and even the fruit at the fme 

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

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

 tempts to control it. We are urging upon our fruit growers the 

 importance of keeping it under control rather than allowing it to 

 spread and l)ecome more and more destructive. 



The Cabbage Aphis (Aphis trassicae L.). One of the principal 

 insect pests of the State, regarding which inquiry was frequently 

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

 and turnips. This is one of the insects which has been present 

 year after year and which demands further attention fmin 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'rii>;>/ii[.his hcfar 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 authority 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 Ex]ieriment Station, there 



