Google it!

I could not find the information in plant nursery. like any damage caused by LBAM. could you mind showing me the link, I really appreciate that!!

Don't worry about the Light Brown Apple Moth. Even though agricultural departments in the U.S. are panic mongering with claims of damage in the media, and are busily pushing pesticides on farmers, it is obvious that LBAM is completely harmless, and has done no damage whatsoever:

Even according to the California Department of Food and Agriculture's own Environmental Impact Report there has been NO crop damage:
http://www.cdfa.ca.gov/phpps/LBAMeir/CH%203_Ag%20&%20Econ.pdf (pages 20, 21)

Supposedly "likely" LBAM damage reported on a University of California blog showed photos of strawberries, with larvae not confirmed to have been LBAM, and a bit of webbing that can only be considered "damage" by people who don't know how to wash their produce. Calling what's going on in these pictures "damage", regardless of the cause, is not science, but hyperbole:
http://ucanr.org/blogs/blogcore/postdetail.cfm?postnum=2830

Almost a hundred California farmers, growers, and nurseries, who would obviously be the first to complain if LBAM were truly a problem for them, have instead come out in support of reclassifying the LBAM to a non-actionable insect:
http://dontspraycalifornia.org/FarmerOppositionPressRelease.pdf

AFSCME Local 2428 represents park workers in the LBAM quarantine zone in the East Bay of the San Francisco Bay Area. They pledge "to conserve the land, the air, the water, and the life that resides there for the present sustenance of the people and use by future generations". They have had no problems with LBAM and demand the moth be reclassified "to reflect the lack of risk it poses":
http://www.dontspraycalifornia.org/AFSCME%202428%20resolution.pdf

According to entomologists, people who actually know something about bugs, LBAM has to have been here far decades longer than claimed by the United States Department of Agriculture, because it's not possible for this slow moth to have spread to such vast areas, as where it's being found, in such a short period of time. Dr. James Carey testified before the Senate Environmental Quality Committee that this was his and several other entomologists' professional opinion. The implication is that LBAM has long naturalized and gone unnoticed by anyone other than by grateful flowers and predators, pollinated and fed by it:
http://www.dontspraycalifornia.org/Senate_Environmental_Committee_LBAM1.pdf

The best line of defense against any insect taking over plants is organic biodiversity. Keep a nontoxic garden or nursery, with a large variety of other plants, and don't be afraid to share a little of the harvest with other critters.

Since 2007, when CDFA and USDA became aware of the LBAM, more than 100,000 moths have been trapped in a program conducted by the U.S.D.A. and CDFA. Prior to that, since LBAM looks similar to other moths, and many groups have acertained that LBAM does not cause any damage, has been here for over 30-40 years with no problem (or you'd hear about the farmers getting help), so the only lab groups seem to be largely with the CDFA, because they got millions for spraying the LBAM, because it was listed as a moth that could destroy crops and an "emergency" went in to effect to get rid of the LBAM. Groups have asked it be removed from list as a threat or reclassified - since it has become native and no factual proof of any damage. There may be a few labs in universities testing the LBAM for various programs, but unknown of their count. The CDFA's webpage had an estimated count of LBAM in California mapped areas. Several groups and webpages have listed the LBAM since 2007, especially when an untested pesticide was aerial sprayed over humans and communities with waterways, through an emergency, without the consent or approval of the people, for what now is believed to have caused hundreds of people to get sick, bees to die, and birds showed up dead at the beach from the riverway after 3-4 massive aerial sprays over urban communities from Monterey Bay to Santa Cruz Bay areas. Humans were undocumented on the required OEH 700 form, due to CDFA printing in the newspapers and erroreounsely announcing to every mayor that the checkmate spray was not a pesticide (the only way the OEH 700 form can report a human illness from any pesticide and prove it in court, is to have your doctor fill out the form and send it to 3 departments.) So, any lab work on LBAMs seems to be a dwindling subject, and you'll really have to search or call known labs to get a count. It is now known the LBAM can not be eliminated, that the population of it is so numerous proving it has been here for decades, and it hasn't caused any damage. For numerous other details, there are many areas to research, utube, google, court papers - to get both sides, and talk to farmers. Then, your 2nd question besides the count, was proven damage seen in labs. When you look to answers to the scientists that have worked with LBAM, you will get their details, and be as stunned as they were that the LBAM ever became such an alarm. Look for their facts: LBAM is a leafroller (so it's not munching the LONG list of plants listed that USDA says it eats - because it is not attracted to plants without a leaf, LBAM doesn't travel far, fly radius 500 feet, so one could encourage birds to feed, or set up the moth catching wine jugs farmers use or blacklight, and they are expects in the stages and life and what pictures are really LBAM or not. Information can be found from farmers, university scientists, nurseries, australia, hawaii, google, utube, local papers by searching LBAM and the damage and count. You did mean damage to the moth, and not to humans, dead birds or bees? Each time a different area was sprayed over two months, dead birds showed up shortly at that rivers end near beach. The toxic LBAM spraying was in low flying small aircrafts and crop dusted the beach coastal tourist towns in these Central California American homes, backyards, parks, schools, and within a mile of any found moth. The LBAM spraying much later was halted, legally, by lawsuit filed in Monterey County, pointing out that the legal EIR was not done first, and that the spray could hurt listed protected invertebraes, etc, and later Santa Cruz County filed. Unfortunately the hundreds of forms typed up, filled out, and compiled in a few days by a parent of a sick child were not accepted in court, since it was not on the legally required OEH 700 form. It is not known what damage has been done or reacting to humans or the environment, since Hazmat was not known to be called. People were reacting to the pesticide, burning in eyes, bitter chemical taste in mouth, vomiting, etc., that would disappear when they left the area, but get them sick again when they returned to Monterey or Santa Cruz. When later, CDFA admitted that it was an untested pesticide, they did not notify all state health departments, mayors, police, hosptials, schools, fire stations, ambulances, or animal hospitals or veteranians to correct their previous published statements that checkmate was not a pesticide.