Comments on: Eastern Tent Caterpillars are Hatching

By: Clement Vossler

Clement Vossler — Thu, 10 Jun 2010 19:53:04 +0000

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By: Bob

Bob — Mon, 12 Apr 2010 13:15:26 +0000

Hi Dana, When the weather is warm the tent caterpillars can grow very quickly, as you discovered. The black things you see in the tents are caterpillar droppings (excrement) also known as frass. I glad to hear you were able to take care of the situation. Bob

By: Dana

Dana — Mon, 12 Apr 2010 03:18:55 +0000

Hi, I was horrified today when I had my first experience with tent caterpillars on my Yoshino Cherry! There must have been about 50 of them in the “tent” and a couple on the trunk. I sprayed them with the only insecticide I had at the time and they did die eventually however they were not small, they were approx 2-3 inches long! There were tiny black things in the tent and then I was surprised to find another web or tent-stuck to the trunk of the tree that had hundreds of those black things as well. I’m trying to find out what the black things are as they don’t look like the foamy or glassy egg casings described. I did spray the tree with an insecticide for tent caterpillars and purchased a systemic protect and feed product I will use as well. Any advice or info on those black things would be most appreciated. Thank you

By: Bob

Bob — Tue, 06 Apr 2010 00:08:24 +0000

Hi Andy, The caterpillars on our trees are already nearly twice as big as when I first saw them. Their webs are well formed so I think it may be too late for rains to do much to them. Sprays however will be very effective against them right now.
Good luck. Bob

By: Andy Bott

Andy Bott — Mon, 05 Apr 2010 22:08:53 +0000

Hi Bob Im glad im not the only one seeing these pests. Will a hard frost help controll these or should I go right into pestiside controll. We do have storms in the forcast and Im hoping that they will rein havic on these caterpillers. thanks -andy-