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 | | From: | Don H | | Subject: | Locusts | | Date: | Fri, 26 Nov 2004 18:05:19 GMT |
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 | The plague of "grasshoppers" currently afflicting Australia, and parts of
Africa, is usually dealt with by chemical spray of breeding sites.
Application of poison may adversely effect other species.
At what height do locusts usually fly? Seems not far from the ground.
Could a large "butterfly net" be devised; mesh smaller than locust body, to
trap them in flight, for destruction by crushing or other means? Like a
long "rabbit-proof fence", which collapses forward to the ground
periodically...Or cone-shaped to channel them into concentrated mass. May
seem an odd idea, but "self-destruction" technique has been used during mice
plagues (44-gallon drum with water).
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| | From: | Don H | | Subject: | Re: Locusts | | Date: | Thu, 02 Dec 2004 20:35:04 GMT |
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| According to ABC-TV program "Catalyst" last night, Austn scientists have
developed a natural fungus which is specific and deadly to locusts, and
which has been successful tested in the field. It requires some 500 spores
to land on each insect, and is rather slow acting. It's to be hoped the
fungus doesn't migrate to other insects (eg. dung beetles), but otherwise
provides a solution.
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"Don H" wrote in message
news:zfKpd.49434$K7.20273@news-server.bigpond.net.au...
> The plague of "grasshoppers" currently afflicting Australia, and parts of
> Africa, is usually dealt with by chemical spray of breeding sites.
> Application of poison may adversely effect other species.
> At what height do locusts usually fly? Seems not far from the ground.
> Could a large "butterfly net" be devised; mesh smaller than locust body,
to
> trap them in flight, for destruction by crushing or other means? Like a
> long "rabbit-proof fence", which collapses forward to the ground
> periodically...Or cone-shaped to channel them into concentrated mass. May
> seem an odd idea, but "self-destruction" technique has been used during
mice
> plagues (44-gallon drum with water).
> =====================================
>
>
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