Desert Museum and Emerald Sonoran Palo Verde Worms

alirabMay 14, 2006

We are new to the AZ area and for the second year in a row at this same time of year our palo verdes get their leaves eaten up by a gray looking little inch type worm. I believe eggs sacs are also on the tree because some kind of clear small beadlike things are also on the branches. The whole neighborhood has a problem with them. Is spraying the only answer? If so, what spray is recommmended?

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Do the trees recover later in the year? If they do, spraying would just damage the beneficial insects that also

If one tree seems heavily infested, see this page for a cheap remedy. It will work if the caterpillars - as they usually do - migrate up and down the tree.

Here is a link that might be useful: Cheap vcaterpillar control

    Bookmark   May 16, 2006 at 1:02PM
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I have had the same problem with these worms on all of my Palo Verde's as well. I used malathion, which initially killed them, but in a week the entire trees were covered in worms again. Were you able to get rid of them, and what did you use?

    Bookmark   May 11, 2009 at 10:33PM
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Try BT. Green Light is one brand. Check your big box stores and nurseries.It leaves most benneficial insects alone. Here's some info from the U of Colorado:

Here is a link that might be useful: BT

    Bookmark   May 13, 2009 at 11:10AM
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