. Annual report. Entomological Society of Ontario; Insect pests; Insects. SOCIETY OF ONTARIO 49 MILK FLOW. i j 12 2 4 30 1 2 31 1 1 29 JUNE JULY AUGUST DATE Figr. 1—Upper line represents Test Herd and lower line the Check Herd. Milk flow expressed as percentage of pro- duction before application of The line joining the co-ordinates for the sprayed test herd tells a graphic story. The line for the check herd declines gradually but steadily. Whenever the test herd line crosses a vertical line indicating a spraying, it immediately turns upward, indicating an increased milk flow. III. Contr
. Annual report. Entomological Society of Ontario; Insect pests; Insects. SOCIETY OF ONTARIO 49 MILK FLOW. i j 12 2 4 30 1 2 31 1 1 29 JUNE JULY AUGUST DATE Figr. 1—Upper line represents Test Herd and lower line the Check Herd. Milk flow expressed as percentage of pro- duction before application of The line joining the co-ordinates for the sprayed test herd tells a graphic story. The line for the check herd declines gradually but steadily. Whenever the test herd line crosses a vertical line indicating a spraying, it immediately turns upward, indicating an increased milk flow. III. Control of Farmstead Insect Pests. Excellent control of farmstead insects such as houseflies, stable flies, mosquitoes, was obtained from one spraying. The and whitewash mixture was highly effective. It is apparently necessary to use a higher concentration of with lime. Besides giving complete freedom from flies, it greatly improved the appearance of the barn. It was found that the high pressure which was caused was very effective in cleaning out dust, cobwebs, and other mis- cellaneous debris which normally gathers in the farmer's barn. Cost The cost of material at list price amounted to ten cents per head. The cost of material for control of farmstead pests was approximately $ This latter figure does not include the used in the whitewash mixture. Discussion In the case of weight increases, Cuff (2) reports an additional average weight increase of 73 lbs. per calf from control of Horn Flies in Kansas. Kelly (3) suggests an average additional weight gain of 30 lbs. per animal per summer in Kansas. The results obtained in this experiment would indicate that similar results can be expected in Western Canada. Statistics indicate a beef cattle population of approx- imately 6,000,000 head in Canada. This represents a loss of 180,000,000 lbs. of beef due to Horn Flies, At an average price of .17c per lb. this represents a monetary loss of $30,600,000 per year t
Size: 1551px × 1611px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
