View Full Version : Oak tree bugs

06-23-2005, 12:01 PM
We are located in Southern Tier region on NYS state. My Oaks (1 year to 15 years old) were looking good until I noticed these green inch worms destroying my Oaks (Red, White, Swamp).



Here is the damage these little boogers are causing




I have two white oaks that look like someone opened up on the trees with birshot. The leaves have holes various sizes (no photo of this). I noticed these seedlike objects on the underside of the leaves of these smae two trees. These seed like objects can be rubbed of with my finger quite easily. I tried to rub most of them off, I figured it was some type of bug.

This is the top view of the leaf

This is the bottom view

I have emailed the pictures to the local DEC Forester in NYS. He said he has received numerous calls on thess problems, but until now, he didn't receive any photos. He is working on the identification and solution.

Has anyone noticed anything similar?

Any solutions?


06-23-2005, 12:04 PM
The little green fellow looks like a "leaf roller".

06-23-2005, 01:35 PM
Take the pictures to your local Extension office. They should have someone on staff that is knowledgable about insects. You might also try a forester in your area.

06-25-2005, 10:45 AM
Still waiting from the regional DEC Forester.

Started looking on the interent and found good info. If anyone else has similiar problems check this site out...


06-29-2005, 10:10 AM
When I typically see an insect problem in my trees I have tried seven dust with sucess. A local extention agent will be able to point you in the exact insecticide direction though.

06-30-2005, 09:28 PM
hey SFacci, i live in western n.y and this is the first year my oak leaks have been skeletized, although my pests are not inch worms, they are a longer fuzzy caterpillar looking creature, greyish with some yellow. dang things are not picky, eating my red, white, sawtooth and gobbler sawtooth. my wife and i started spraying them with "seven" pesticide that we mixed up (concentrate) and immediately the worms started coming up out of the tubes and retreating. i hope this is the ticket, only have 6500 more trees to spray. going to spray everything, not taking chances. too much time and effort into these trees to let the bugs win the war.

07-09-2005, 11:59 AM

I only saw one of those fuzzy caterpillars and only recently. I didn't have a camera handy to take the pic, but he almost looked like he was covered in mold. Only untill I studied him did I realize that he was hairy than me!

We only plant 50 Oaks per year so we don't have the numbers that you have to care for. I went around for two days, one tree at a time, squashing those little critters. Crude but effective.

I also leave the driveway lights on and let the bats eat as many as those moths as possible. It's a great show.

The caterpillars seem to be attacking all trees now. These trees include black cherry, apple, maple, ash, and beech.

What is "Seven" and where can I purchase it for next year. Is there a list of bugs that "Seven" is good for?

I don't want to be caught with my pants down again.I lost too many trees to this critters. Planning my defense for next year.


Trophy Doe
07-10-2005, 01:28 PM
There is another product call Dipel which is organic but highly toxic to caterpillers. It is a fungus with a scientific name that I can neither spell nor pronounce. Maybe Bacillus Thumbergisis (sp?)

07-23-2005, 10:23 PM
sorry for taking so long to reply, busy planting food plots and caring for trees to get on the computer. i buy it at wal-mart. like 12.99 for a decent size bottle of seven concentrate. kills over 100 insects and it lists them all. the minute i sprayed the trees, the caterpillars literally came running up out of the tubes, at which time i too squashed them. but like you said, i have problems with inch worms on my apples, pears, plums, etc. etc. so i sprayed everything with this mixture. and so far (cross my fingers) the trees are looking good, no more holes in the leaves, etc. so give it a try, good luck

07-24-2005, 01:13 PM

Don't sweat it. I'm planning my defense for next year. The damage was already done this year. Once is naive, twice is stupid.

Lost one whole tree to the critters (ten year old red oak). The rest of the attacked trees seem like they will survive, with some damage. Im sure the growth rate has been affected of all the exposed trees.

Live and learn



07-25-2005, 08:52 AM
my pests are not inch worms, they are a longer fuzzy caterpillar looking creature, greyish with some yellow.

started spraying them with "seven" pesticide that we mixed up (concentrate) and immediately the worms started coming up out of the tubes and retreating.

sounds lile Gipsy Moth (http://www.answers.com/topic/gypsy-moth) maryland goes thru cicles of bad years (can't remember how often though.) I can remember one year we had burlap tied around the oaks at DBH. this traped the pillers from getting up into the trees. and made it easey to kill them. seven is a wonderful pesacide (sp).

as for the other bugs I have no idea, but they sure are nasty. I can't ge over what they did to your trees.

08-09-2005, 08:24 PM
There was an article in the Post Standard in Syracuse about a month and a half ago about a tent caterpiller infestation. From Syracuse south to Tully and over toward Auburn and north to Oswego large areas of trees have been completely stripped of their leaves. One of my friends has 120 acres of forest in LaFayette, NY and his trees were stripped. You could actually hear the caterpillers eating the leaves. It was so noisy it sounded like rain, and little bits of leaf material littered the ground everywhere. The article said that it could last 3-4 years before it ends. I was wondering if what you found were the larva for the caterpillers before they became mature.