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The wasps normally are not aggressive and do not seek out or
attack people. The sting is in accordance with most polistene

type stings with a wheel-flair reaction and pain lasting from

ten - twenty minutes. "En Masse" attacks were not reported
although some people recalled being stung 4 or 5 times. One
report of 20 stings could not be confirmed and is considered
unlikely. It should be noted that aggressive reactions were
only noticed when the integrity and safety of the colony or

nest was directly threatened.

No mosquitoes were collected though light traps, natural and artificial
nesting stations were used. Furthermore, interviews indicated no one
has been bitten by a mosquito. High winds are the major factor
restricting the establishment of mosquito populations.
Spiders are present throughout the atoll's islets. Specimens of what
appears to be the black widow have been collected by personnel of
the MPML though none were found during this survey. The only island
reporting the collection of L. mactans is Enjebi (Jane}. Specimens

have been sent to the BishopMuseum, Hawaii for confirmation.

No

other venomous spiders have been reported from or collected from the

_ islets.

Snakes are not present on Enewetak Atoll.
Flies affecting man appear limited to several species of the genus
Musca or house flies and sarcophaga (flesh flies). In most cases the
breeding areas are in and around waste disposal sites. Populations are

' small and of nuisance value.

Some transmission of enteric diseases

is possible though not likely due to good sanitary practices and
structural integrity of buildings.
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RECOMMENDATIONS:
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The rodent populations require control of the earliest possible date.
Baiting with zinc phosphide is the most acceptable to this writer. Howe

other baits are available.

A special annex to this report will be

prepared with specific guidelines on baiting requirements.

Bait stations containing zinc phosphide in a formulation acceptable to
the rats should be used. Several prebaits should be tested without the
presence “of zinc phosphide to determine which is the most acceptable
to the rats. Upon completion of prebaiting the actual zinc phosphide

bait should be employed.
prior to baiting.

Each islet should be prebaited immediately

Select target paragraph3