Bahaya lalat jenis BOTFLY terhadap manusia yang bisa membentuk
kelompok parasit dalam tubuh manusia dan juga OTAK MANUSIA dan haiwan
dengan menyebarkan larvanya(BELATUNG)!!
Infestation
Botflies deposit eggs in a host body, or sometimes use an
intermediate vector: common houseflies for example. The smaller fly is
firmly held by the botfly female and rotated to a position where the
botfly attaches some 30 eggs to the body under the wings. Larvae from
these eggs, stimulated by the warmth of a large mammal host, drop onto
its skin and burrow underneath.[2]
Eggs are deposited in animal skin directly, or the larvae drop from the
egg: the body heat of the animal induces hatching upon contact. Some
forms of botfly also reside in the digestive tract when consumed by a
licking action.
Myiasis can be caused by larvae burrowing into the skin (or tissue
lining) of the host animal. Mature larvae drop from the host and
complete the pupal stage in soil. They do not kill the host animal, and
thus are true parasites (though some species of rodent-infesting
botflies do consume the host’s testes/ovaries).
The equine bot fly presents annual difficulties to equestrian
caretakers, as it lays eggs on the insides of horse’s front legs, on the
cannon bone and knees, and sometimes on the throat or nose, depending
on what type of bot fly does the laying. These eggs, which look like
small, yellow drops of paint, must be carefully removed during the
laying season (late summer and early fall) to prevent infestation in the
horse. When a horse rubs its nose on its legs, the eggs are transferred
to the mouth, and from there to the intestines, where the larvae grow
and attach themselves to the stomachs lining or they pass into the small
intestine and attach there. The attachment of the larvae to the tissue
produces a mild irritation which results in erosions and ulcerations at
this site[3]. Removal of the eggs (which adhere to the host’s hair) is
tricky, since the bone and tendons are directly under the skin on the
cannon bones: eggs must be removed with a sharp knife (often a razor
blade) or rough sand paper, and caught before they reach the ground. The
larvae remain attached and develop for 10–12 months before they are
passed out of the body with the horse’s manure. Occasionally horse
owners will report seeing the bot fly larvae in their horse’s manure.
These larvae are cylindrical in shape and are reddish orange in color.
In 1–2 months adult bot flies will emerge from the developing larvae and
the cycle will repeat[3]. Bots can be controlled with several types of
dewormers, including dichlorvos, ivermectin and trichlorfon.
sumber :wikipedia
Gambarnya agak dp
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