Austin Garden Tour

Whew! It's Friday...it's been a very busy week! I checked my field plots in Georgetown on Monday and I'm doing another check this afternoon; I did a three hour CEU training for city employees; I took a great bead class the past two days with Andrea Guarino-Slemmons and tomorrow is the Master Gardener Home Tour. I get the pleasure of hanging in Patty Leander's yard to talk about bugs (pests, beneficials or whatever problems you're having in your yard). If y'all have the opportunity, attend the Garden Tour and you'll have the opportunity to see a variety of wonderful local gardens! I've been to Patty's before and I can tell you that it's the most amazing vegetable garden I've seen. I can only aspire to someday have a tenth of the vegetable garden she has....it's amazing...they have raised beds, make their own compost, test new varieties of veggies to see how they grow in Travis County.

The Garden Tour has 7 gardens to visit with people at each location to talk about a variety of topics ranging from rainwater collection to bulbs in Central Texas to installing drip irrigation. For more information, go here:
http://www.tcmastergardeners.org/what/gardentour.html

As for me....I'm off to kick some fire ant mounds!

Field trial for fire ants

Well, I'm a bit off my schedule for attempting to post each Friday. I'm not going to beat myself up too much as I was working, but fortunately, it was outside in the wonderful sunshine instead of behind my desk in a drably painted office. Speaking of which...I should paint my office a brighter color...maybe lavender.....wonder if I could get away with it?

Anyway, on Friday I drug my husband with me to set up a field trial outside the Extension office in Georgetown. It's always nice to have help when doing field work and Alan is always a big help. He's especially attentive now, sometimes to the point of being annoying, as I'm pregnant and he doesn't want me lifting heavy objects, being within 5 miles of a pesticide, etc. Not that I had plans of handling pesticide, my doctor would be very upset as I was told this was a big no-no last visit. And yes, you heard correctly, there's going to a little Brown soon to terrorize the planet...prepare yourselves!

Back to the field work....I'm expanding upon a trial that I carried out last fall testing aspartame (the artificial sweetener) for managing individual fire ant mounds. I'm sure some of you have read on the Internet or got an email saying how it was developed as an ant poison. Well, I'm now carrying out field trials to see if it actually will get rid of the little buggers. The trial from last year showed that the aspartame did nothing to kill the ants- the aspartame treated plots showed no significant difference from the control plots where no treatment was done. This year, after treating with aspartame, I watered it into the mound since some organic sites say that this stimulates the product to kill the ants. We'll see what happens.....

By the way, if you're a nerd like me or just want some very dry reading material, you can find the aspartame field trial plus all of the field trials carried out by the fire ant group here:

http://fireant.tamu.edu/research/results_all.cfm

It's the one titled "2007 Urban IPM Handbook". It's a pdf file that's quite large so it may take some time to download.

Twig girdlers- amazing creatures!

When I first started with Extension, someone brought in a bag of twig tips that appeared to have been sawed off, very neatly. This led to my discovery of twig girdlers. I had a few questions this week on twig girdlers, so I thought I'd add information here so more people could learn about these cool beetles. Yes, they can be somewhat of a pest when they are munching on your tree, but you really have to admire their precision.

Twig girdlers are a type of longhorned beetle (they get the longhorn part from their long antennae, not because they are affiliated with UT, or should I say TU for all those good Ags). After mating, the female beetles chew a circular notch around twigs or small branches of the tree. Eggs are laid into notches chewed in the bark above the circular notch. Larvae hatch and tunnel under the bark of the twig.

Since the beetle "girdles" branches, the tips eventually die and fall off the tree. This is usually when I get phone calls since branch tips are "mysteriously" dropping from the tree with no visible insects (hint: the insects are inside the branch tips). Unfortunately, it is very difficult to catch the beetles in the act, so spraying really does not help manage the beetles. Sanitation is your friend- clean up and dispose of the twigs and small branches that have fallen off the tree as they contain larvae.