CITRIC
ACID: Legal - Not Restricted
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HYDRATED
LIME: Legal soil amendment.
The label does not support its use as a pesticide,
but it reportedly works well where lime is used
as a soil amendment or in potting mixes.
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CAFFEINE:
Legal W/ POC & PERMIT. Requires pesticides license
and site specific permit.
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HOT WATER: Legal.
Sustained constant high temperature treatment
for potted plants.
The DLNR-Forestry Nursery uses
a hot water shower treatment
on all outgoing plant materials.
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Contact Hilo Forestry office
for details: [808-974-4221]
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Hawaii Department of Land &
Natural Resources, Division of Forestry & Wildlife has a working model
that is used to treat nursery products before sales and out-plantings.
Hot water shower method: at least 113o F for 3 minutes.
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Effectiveness is dependent upon
ensuring that the proper water temperature is sustained throughout the treatment
duration and that all parts of the plant where frogs and/or eggs may be are
sheltered are exposed to the hot water. Spraying hot water during (day
or night) will flush the frogs out of hiding and expose them, but won’t kill
them. In the right setting, this option makes it easier to hand pick
the individual frogs.Suspected potted plants can be placed in a tub or sink
and showered with hot tap water (at least 113o F / or 45o C - as hot to the
touch as you can tolerate) for at least 3 minutes, followed by 1 minute of
cold tap water (to cool down the plant).
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This process will kill both frogs
and their eggs within the plant. Capture any frogs that may be flushed out
or that jump out of the plant while being treated. Hot water does not
usually harm plants except for sensitive varieties (certain orchids), plants
that may already be damaged or sick, or tender plant parts (young leaves
and shoots). Hot water treatment is also effective against frog eggs.
Place eggs in hot water (at least 113o F) for at least 3 minutes, and they
will not be able to hatch. Hot water can also be used on landscape
plants to either directly kill eggs and frogs by contact for 3 minutes or
to flush out frogs for hand-capture.
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VAPOR
HEAT TREATMENTS: Legal.
Sustained constant high temperature treatment
for potted plants.
Contact UH - CTAHR for details:
[808-974-4105]
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Exposing frogs and/or eggs to hot,
humid air (45o C or 113o F, > 90% relative humidity) for 15 minutes is
lethal. This method is available to commercial nurseries for disinfesting
potted plants prior to shipping or sales.
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COFFEE: MYTH, Non-toxic.
A spray mist of coffee is not a strong enough dose to kill a frog.
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