Tent Worms/Catepillars

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dhuffnmu

dhuffnmu

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Mar 15, 2005
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106
Location
Redford, Michigan
Does anyone know more about these. It seems this year around my area I have been seeing more and more of them that in recent years. One homeowner was scared that they were going to kill her large trees.

Thanks for any info.
 
Stumper

Stumper

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May 14, 2002
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Canon City, CO
They generally don't cause extensive harm but if the numbers get high enough they can defoliate a tree completely-a couple of defoliations on succeeding years can deplete resources enough to cause death. They are easily combated with BT-Bacilus Thurengensis (SP) a natural pathogen which multiplies in the intestinal tract and causes death by chronic constipation.
 
treeseer

treeseer

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Jan 2, 2004
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se usa
Stumper said:
They are easily combated with BT-Bacilus Thurengensis (SP) a natural pathogen ...
True, and they are also easily combatted by breaking up the webs with a long stick and letting the birds get em, or pruning them out if you won't miss the branch. Their numbers do fluctuate; if it's a bad year now it may be less of a problem in 06.
 
arboromega

arboromega

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Apr 10, 2004
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virginia
it is fall webworm i would guees, not tent catapillar. end of limbs or in croteches? get a picture i could elaborate. this time of year most likely fall webworm, but i dont live in mich so icould be wrong
 
bushman

bushman

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Jul 26, 2003
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virginia
seems like we say that about every year treeseer but seem to get ,not enough rain to much rain ,insects are really bad .06 better be real good!if global warming stays around things are going to worse,and dont see the end in site.
 
John Paul Sanborn

John Paul Sanborn

Above average climber
Joined
Apr 25, 2001
Messages
14,546
Location
South Eastern WI
Double ditto the fall web worm.

fall_webworm_nest.jpg


They are a moth (Hyphantria cuneaso) bT will work, be sure you know you pests, because it will not work on sawfly larve, wich looks like a catapillar.
 
hobby climber

hobby climber

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May 19, 2004
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.
dhuffnmu, I'm about 45min from Detroit Michigan in Ontario Canada. I also noticed an increase of tent caterpillars in my area this year. All I do is get out my telescopic pole saw and open up the web removing what I can reach. Birds do the rest! If they are higher than you can reach...maybe a throw weight & line??? HC
 

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