Issue 4, May 15, 2009
Scouting Watch
Insects to be watchful for in northern Illinois include birch leaf miner, European pine sawfly, Eastern tent caterpillar, Gypsy moth, lilac (ash) borer, oystershell scale (brown), scurfy scale, and euonymus caterpillar.
In southern Illinois, it is time to be treating flatheaded appletree borer, roundheaded appletree borer, elm leaf beetle, mimosa webworm, whitemarked tussock moth, and viburnum crown borer.
In central Illinois, flatheaded appletree borer, roundheaded appletree borer, European pine sawfly, Eastern tent caterpillar, euonymus scale, peachtree borer, whitemarked tussock moth, and viburnum crown borer can be treated.--Phil Nixon
Author:
Phil Nixon