Showing posts with label Alligator Weed. Show all posts
Showing posts with label Alligator Weed. Show all posts

Thursday, 26 February 2009

alligator weed and dogs

What has alligator weed got to do with dogs? As far as I know, nothing. That's why Penny stayed at home when I went to a talk given by ranger Matt Strong on the noxious Alligator Weed, which has made its appearance in the Darebin Creek.

On Friday 20 February I posted about this weed, thinking it was already in Darebin Parklands, where we walk most days, but I was spotting the wrong water plant. The government website says;
Alligator weed Alternanthera philoxeroides is an Argentinean plant that was first reported in Australia in the 1940s and has since spread along the east coast. If not controlled, the weed can completely cover the surface of water bodies and wetlands, affecting native flora and fauna and agriculture.
Matt said it has the potential to be disastrous in Victoria but it's not prevalent in our park yet. His advice to anyone who thinks they've found the plant is to report it to the rangers, but not to touch it, because it reproduces from any little bit. Here's a picture of it.


(I found this photo at the New Zealand site of Environment Waikato and I believe the picture was copyright free for non-commercial use.)

The main distinguishing features of the weed are the fact that two leaves come out at the same spot on the stem and that there are white flowers near the top. The flowers are really a little cluster of flowers and to me they felt quite spiky when Matt passed a plant around the meeting.

I guess Penny and I should keep our eyes open when we walk next time. I wouldn't want this plant to smother our lovely creek.

Friday, 20 February 2009

dogs swimming in local creeks

Sometimes Penny still swims in the Darebin Creek on hot days, but lately the water level is low and there is a horrible weed growing in the creek. I think I've seen it in the Merri Creek, too. I guess that it's Alligator Weed, because Darebin Parklands ranger Matt Strong is giving a talk about this weed next Tuesday in the parklands environment centre.

With temperatures due to be high again soon, it's great if dogs can swim, but there aren't many places to do it nowadays. We usually walk once a week at Gardiners Creek, but lately that creek's water has become very polluted and everyone who walks there has to keep dogs on lead for fear they jump into the water.

For many reasons I wish it would rain - to water our farmers' crops; to freshen our gardens; to bring our creeks and rivers to life; to put moisture into the air so fires won't kill us, our pets and our bush creatures.

But not heavy rain yet...we don't want all that fire-fighting foam to wash into the dams.