The larvae will
migrate from the manure to the soil and continue their growth in the
moist ground. This takes place to some extent even when the manure is
removed from the stables every day. Even wooden floors are not entirely
satisfactory unless they are perfectly water-tight, since larvae will
crawl through the cracks and continue their development in the moist
ground below. Water-tight floors of concrete or masonry, therefore, are
desirable. Flies have been found to breed in surprising numbers in small
accumulations of material in the corners of feed troughs and mangers,
and it is important that such places be kept clean.
FLY-TIGHT MANURE PITS.
The Bureau of Entomology for a number of years has advised that manure
from horse stables be kept in fly-tight pits or bins. Such pits can be
built in or attached to the stable so that manure can be easily thrown
in at the time of cleaning and so constructed that the manure can be
readily removed. It is desirable that the manure be placed in these
fly-proof receptacles as soon as possible after it is voided. The
essential point is that flies be prevented from reaching the manure, and
for this reason the pit or bin must be tightly constructed, preferably
of concrete, and the lid kept closed except when the manure is being
thrown in or removed. The difficulty has been that manure often becomes
infested before it is put into the container, and flies frequently breed
out before it is emptied and often escape through the cracks.
Pages:
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27