A NEW FLY TRAP
A New Fly Trap For Dairies, Stables, Hotel Kitchens, Markets, and Other Places Where the Small Household Fly Traps Are Inadequate By C. F. HODGE Professor of Biology, Clark University Figure...
...A similar trap set in a stable window on a farm on the Magothy Figure 3.—The arrows in this illus tration indicate the direction taken by the flies in putting themselves in the prison shown in figure 1. River, Maryland, the stable standing in the edge of the woods near a spring and brook, caught thousands of the black or deer flies which were troubling the stock...
...Communications for this Committee should be addressed to the Net Weight Law Committee, Department of Agriculture, Bureau of Chemistry, Washington, D. C. The Net Weight Law was signed March 3, 1913, and is to go into effect eighteen months from that date...
...Net Weight Law THE COMMITTEE appointed by the Secretaries of the Department of Commerce, the Department of the Treasury and the Department of Agriculture to draw up regulations for the enforcement of the new Net Weight Law announces that it is now ready to receive recommendations and suggestions in writing...
...Large pans of fly These are simply folds, or open pleats running horizontally across the trap, pointing upward and inward...
...end of the trap...
...The essentials are also given in cross section in Figure 3, in the diagram fastened to the bait—fish heads, poultry cleanings, brewers' waste, blood, or anything available which is found on the premises to most powerfully attract flies can be set on the bottom board—and Figure 1.—Here is the big trap...
...There were very few house flies or blow flies, because these had practically all been caught earlier in the season with baited traps...
...A cow is close inside this window...
...ered by a ridge or roof of screen wire with holes large enough for flies to go through (punched with an ice pick) every two inches...
...At the bottom is a crack, about a quarter inch wide, running the length of both sides...
...The photograph was taken after a very successful "catch" at a stable window...
...of which were stable flies, practically all that appeared on the place...
...This crack admits the flies to a space covthus establish a whirlwind focus for all the flies about the place...
...the flies have been emptied and measured...
...It picked up about five quarts of flies, 90 per cent...
...The flies, in trying to get in or out of the window collect in these folds, run back and forth in them until they pop through one of the holes which occur every two inches and they have never been seen to find a hole on the convex, inside, surface of the wrinkle and crawl down and out again...
...Figure 2 shows the same trap after This shows the cross section of a fly trap made of any box...
...Figure 1 is a first model of a stable cellar window flytrap...
...This remains, then, the only light window in the stable or stable cellar and all the flies of every kind go in or out and are caught going or coming...
...One pair put out of business in the spring may mean bushels less through the Bummer and fall...
...A New Fly Trap For Dairies, Stables, Hotel Kitchens, Markets, and Other Places Where the Small Household Fly Traps Are Inadequate By C. F. HODGE Professor of Biology, Clark University Figure 4.—This picture shows the new Hodge fly trap in position on a stable window...
...The figure shows the trap after it has been in position for one week at the Worcester Home Farm...
...It requires that the quantity of the contents of food packages be plainly marked on the outside of each package in terms of weight, measure or numerical count...
...The rest were chiefly horn flies and a single bot fly...
...Slip a board on the top...
...The first hearings for manufacturers, dealers and others interested will be held in New York during the week of June 9th, and other hearings will be held whenever and wherever there is sufficient demand...
...The other essential in the construction is the fold, or folds in the screen walls...
...This gives more clearly the construction of the trap...
...IN OUR present war on the flies the the quick, easy and effective method is to catch the breeders, or let them catch themselves...
...One morning I found the trap swarming with mosquitoes, which had evidently tried to get in at the cow during the night...
...In Figures 1 and 2, which, as stated, are of a first model, it would have been better to have made the folds nearer the top, since the week's catch has choked most all the entrance holes with dead flies...
...Here is a trap, the simplest in construction I am able to imagine, which any farmer can make with a little box lumber and screen wire, which will pick up the breeders as fast as they come to the premises, not only of the common house flies but stable and horn flies, black flies and mosquitoes and possibly bot flies...
...The sun shines directly on her, making this a very bright window in an otherwise dark basement...
...For the large propositions, dairies, stables, slaughter houses, hotel kitchens, markets, and also for other flies, Btable, horn, deer or black, bot flies, we need larger and other devices (See Figure 1) than the small household flytraps...
...It is 32 inches long by 16 inches deep and 12 inches wide, made to fit in the opening of a stable cellar window, the window being removed...
...It is still in its experimental stages, but it looks as if it might help to solve some of our most pressing fly problems...
...Figure 4 shows the trap in position...
...The window in the sunniest corner, nearest the stock or manure is chosen, the one about which the flies naturally congregate, and gunny sacks are hung over the other windows...
...It was not baited at all...
...Dotted lines represent screen...
...Figure 2.—This is the same trap shown in figure 1 after the flies have been emptied and measured...
...The trap was set in the window, as shown in Figure 4, from about July 1st until November...
...This drawing is a cross section of the fly trap shown in illustrations 3 and 4 on this page—the dotted lines representing wire screen and the arrows indicating movement of the flies into the trap...
Vol. 5 • May 1913 • No. 20
