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Fogging in Agriculture
ANIMALS BUILDINGS
Control of flying insects around farms within animal buildings can be achieved with dense cloud of small droplets from
thermal fogger. Where a residual deposit as well as immediate control is also
required cold mist fogger will give slightly
larger droplets that will not only give a thorough kill of flying insects, but will also be produced in sufficient
numbers to leave a residual deposit on walls and other surfaces. A thermal fogger can be used with
inert special effects fluid to test airflows in closed animal confinements. Thermal foggers have also
been shown to be on ideal way of applying ReJeX-iTŪ and other bird repellents to animal feedlots.
GRAIN STORES
To disinfect empty grain stores and silos prior to storing newly harvested grain, it is essential to thoroughly clean
all surfaces prior to treatment to ensure that insects are not protected from the spray by layers of dust. A thermal
fog will thoroughly penetrate all parts of the structure, but where there are relatively deep crevices (in brick or wood)
the use of a formulation which also has a residual effect should be applied with a ULV machine or cold mist fogger
to give a higher level of control.
DISINFECTING POULTRY AND ANIMAL HOUSES
A suitable disinfectant should be applied to the building before introducing a new flock of poultry or young animals to
prevent the build up of disease. Best results will be achieved when the building is thoroughly cleaned and washed down
to remove dirt and debris prior to treatment. Most disinfectants are effective when applied with droplets of 50-80 microns
in size so that they not only leave a residual deposit, but also to ensure that there is some moisture present long enough
to ensure activity against the bacteria. Thermal ULV machines are ideally suited for this use, they can be used to fog into a
building from the doorway. Alternatively a truck or atv mounted ULV cold mister can be driven through the house,
and for small buildings such as hatcheries a ULV cold mister is an ideal size machine. A large automatied ULV is a novel
concept in
application in that the machine can treat an entire house from one position without an operator being present. A choice
of droplet sizes for particular applications can be made and houses up to 60000 sq. ft. (6000 mē) may be treated.
INOCULATION OF POULTRY WITH VACCINES AND SOME ANTIBIOTICS
Many vaccines and antibiotics need to be applied to various types of birds at very specific droplet sizes. Suitable
applicators need to be able to deliver droplets of a pre-selected size with few or none of the droplets outside of
the specified range. A ULV cold mister is ideal for this use
and as a convenient and simple method of application on birds such as Broilers, Breeders or Turkeys loose on the floor
and can also be used for small numbers of caged birds.
TROPICAL CROPS
Thermal foggers can be successfully used in a number of tree crops where the leaves form a "closed" canopy
and the advantage of a thermal fog in that it will carry the chemical up to this canopy, which is often at a considerably
height and surfaces. The canopy will then retain the fog until it has settled onto the leaf. Two crops commonly treated
are rubber and oil palm, but cocoa and coconuts can also be suitable crops for such treatment. Thermal fogging is used
for applying insecticides, but more commonly for applying fungicides. In rubber the two principal diseases are odium and
phytophasu. Any chemical can be applied in this manner, but to ensure that the chemical is carried up to the canopy it
must be formulated in a suitable oil, and treatment is best carried out early in the morning when the thermal up currents
are at their strongest and the prevailing winds are at their weakest. Hand held thermal foggers can be used when the
terrain is unsuitable for vehicular travel.
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