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Life stages
There is considerable overlap between the different life stages of SLF. Egg masses also take on multiple appearances, covered and non-covered should be removed any time they are observed. Eggs will have hatched by now, but this will aid in scrapping efforts later in the year.
Where to look
Favorite tender plants and new growth (early nymph stages): Roses, grapes, herbaceous weeds, flowers, shrubs, and new growth of other favorites. Favorite Woody Plants: (red-color nymphs through adults): Tree of heaven, black walnut, birch, willow, sumac, red and silver maple. Common hard surfaces: (egg laying areas) Pallets, stone features, buildings, telephone poles, fences, stationary vehicles.
Management
DO NOT SPRAY PLANTS DURING THEIR BLOOM PERIOD!
Some contact materials to consider when nymphs are present: Insecticidal soaps, azadirectin, natural pyrethrins and synthetic pyrethroids, malathion and other organophosphates. Carbaryl is commonly used to knock down nymph and adult populations, however it should be noted this material can reduce benefificial insects that predate on pest insects. In agricultural settings only, Dinotefuran (neonicotinoid) has been shown to be highly effective.
