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Fall webworms already (mulberry)

Discussion in 'Pesticide & Herbicide Application' started by americanlawn, Jun 29, 2007.

  1. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Messages: 5,954

    Yesterday, I noticed two small webs in a large mulberry tree. This is the earliest I've ever seen 'em, so I emailed our land-grant university's head of entomology to let him know (we stay in touch). He kindly replied that this was the first report of fall webworms in the state this year...I felt good. Anybody else seeing them? I know they are widespread throughout much of the Country.:usflag:
     
  2. indyturf

    indyturf LawnSite Bronze Member
    from Indy
    Messages: 1,901

    I think many insects (grubs) are running a few weeks ahead of schedule this year! it could be from the early warm temps, we had high 80s in early may this spring!
     
  3. heritage

    heritage LawnSite Bronze Member
    Messages: 1,356

    Yep,

    About 870 GDD is their egg hatch. Also about same time as Greenspire Littleleaf Linden is in bloom and Panicle Hydrangea. Japanese Tree Lilac Bloom @ 810 GDD.

    Get them early. Also this pest only eats within its nest. So don't over do the spraying.

    Should call em' "summer webworm" LOL


    Pete D.
     

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