
10. 
Loss in weight of tobacco from infestation tobacco moth and 
Cigarette beetle.--W. D. Reed, of Richmond, Va., reports as follows: 
"In order to obtain data on the probable loss in weisht of Turkish 
tobacco as a result of the feeding of Ephestia elutella Hbn., and 
Lasioderma serricorne Fab., samples of tobacco were obtained on Jan- 
uary 18 from two heavily infested bales. These samples were weighed, 
each leaf was separated from the others, and the entire sample was 
Shaken over a screen. The results of these tests are as follows: 


a te as ae es A 


Weignt of Loss in 
Samaie No. Total Weizht fras weight 
Ounces. Ounces Percent 
1 48 west 19.8 
G ae 85:0 19.0 

These bales of tobacco were infested to an average depth of 24 
inches and it was estimated that about 11 pounds in the two bales 
were infested at the rate of the abové samples. This would give a 
loss of 2.13 pounds in the weight of these two bales. The value of 
Turkish tobacco, when it is ready for manufacture, is approximately 
60 cents per pound, which would give a loss of $1.27 on the two bales 
examined. With over one hundred million pounds of Turkish tobacco in 
storage in the United States, the direct loss that may result to the 
tobacco industry from insect infestation in this tye of tobacco un- 
less the recommended control measures are followed is impressive. 
Further sampling of infested Turkish and domestic tobacco is 
expected to give a more accurate estimate of the loss in weight due 
to insect infestation. There is some loss from screening when unin- 
fested bales are manufactured; the loss is much greater, however, in 
infested bales. uel. 
Ecunomic effects of forecasting »vrobable beet leafhopper injury 
in the Twin Falls-Jerome area since 1927.--J. CG. Chamberlin, of the 
Twin Falls, Idaho, laboratory, has computed the gross vain to growers 
directly attributable to the forecasting service maintained since 
1927, in the Twin Falls-Jerome area. Yields and acreage planted were 
computed for the ll-yéear period, 1916-1926, when no forecasting serv- 
ice existed, and the results compared with the period 1927-1933, when 
the service was in force. The result shows that, in additicn to pre- 
venting the planting of large acreages in years of heavy infestation 
by Eutettix tenellus Bak., the planting of large acreages in years 
when infestation was low has resulted in a net gain of $1,500,000 to 
the growers alone. 
