 | Mary Treat - Gardening - 1882 - 298 pages
...its cruder forms, and various contrivances have been employed to facilitate its practical operation. The main idea embodied in these contrivances is that...receptacle of any convenient size (varying from about three feet square to about eight or ten by two or three feet), provided with high back and sides, cither... | |
 | Henry Tryon - Agricultural pests - 1889 - 270 pages
...qualities of oil are made use oB. CV Biley, the US Entomologist, writes on this subject as follows : — " The main idea embodied in these contrivances is that...receptacle of any convenient size (varying from about three feet square to about eight or ten by two or three feet), provided with high back and sides, either... | |
 | Encyclopedias and dictionaries - 1889 - 932 pages
...drawn by one or two horses, and which catch the young locusts and kill them by contact with kerosene. The main idea embodied in these contrivances is that of a shallow receptacle of any convenient size, with high back and sides, either mounted on wheels or runners. The pans are supplied with oil, and... | |
 | Entomology - 1891 - 688 pages
...best and cheapest that can be used against the locusts. It may be used in any of its cruder forms, and various contrivances have been employed to facilitate...runners, or carried (by means of suitable handles or supporting rods) by hand. If the "pan" is larger than, say, 3 feet square, it is provided with transverse... | |
 | United States. Bureau of Entomology - Entomology - 1890 - 930 pages
...best and cheapest that can be used against the locusts. It may be used in any of its cruder forms, and various contrivances have been employed to facilitate...runners, or carried (by means of suitable handles or supporting rods) by hand. If the "pan" is larger than, say, 3 feet square, it is provided with transverse... | |
 | Zoology - 1889 - 734 pages
...best and cheapest that can be used against the locusts. It may be used in any of its cruder forms, and various contrivances have been employed to facilitate...runners, or carried (by means of suitable handles or supporting rods) by hand. If the "pan" is larger than, say, 3 feet square, it is provided with transverse... | |
 | New South Wales. Department of Agriculture - Agriculture - 1891 - 1026 pages
...best and cheapest that can be used against the locusts. It may be used in any of its cruder forms, and various contrivances have been employed to facilitate...from about 3 feet square to about 8 or 10 by 2 or 3 foet), provided with high back and sides, either mounted upon wheels or runners, or carried (by means... | |
 | Commissioner of Agriculture - 1883 - 612 pages
...best and cheapest that can be used against the locusts. It may be used m any of its cruder forms, and various contrivances have been employed to facilitate...practical application. The main idea embodied in these ••ontrivances is that of a shallow receptacle of any convenient size (varyin g from about 3 feet... | |
| |
As we shall presently see, in considering the different available destructive agents, coal oil is the very best and cheapest that can be used against the locusts. It may be used in any of its cruder forms, and various contrivances have been employed to... 