Green Stink Bug Emergence In Tree Fruit. July 14

Green Stink Bug on Pink lady near harvest
Green Stink Bug Adult on Pink lady near harvest
Over the past week the native green stink bug, Acrosternum hilare (Say) [Chinavia hilaris (Say)] (Hemiptera: Pentatomidae) has been observed moving from deciduous forest trees to tree fruit with egg laying and nymphs present on agricultural commodities. Nymphs of green stink bug undergo 5 stages of development and appear strikingly different from the adult. This economic pest of apple, peach and pear is also a pest of soybeans, tomatoes and cotton in the eastern US. In August, 2012 drought conditions led to severe feeding from the stink bug complex resulting in 20% injury in three sites in Columbia, Dutchess and Ulster Counties.
Green stink bug 1st instar. Photo Marlin E.Rice
Green stink bug 1st instar. Photo Marlin E.Rice
Green Stink Bug: 5th Instar Nymph
Green Stink Bug: 5th Instar Nymph

At the Hudson Valley Lab we have not yet seen populations that warrant management.

Both green and brown marmorated stink bug contributed to this injury, producing both cosmetic as well as reduction in fruit quality. In general stink bugs have become a late season challenge to integrated pest management programs requiring the use of broad-spectrum insecticides in the organophosphate, carbamate, and pyrethroid class of chemistry. The neonicotinoid class is considered a reduced risk group of insecticides to replace the organophosphate class for pest management. One of the more effective insecticides in this group, Dinotefuran, has been found to be very effective in managing the stink bug complex. Yet the product not yet been allowed by DEC to receive a NYS label or Section 18 for use on tree fruit against the stink bug complex.

An alternative pest management tool in place of the older classes of insecticides is the neonicotinoid, Actara. Actara (A.I. Thiamethoxam) has conservative 35 DTH and A.I. per acre restrictions. In New York State, do not exceed 0.172 lb. a.i./A (11 oz.) of Actara or thiamethoxam containing products per acre per growing season on Pome Fruit. In light of these restrictions, the use of the pyrethroids Bifenthrin (Bifenthure, Brigade) or Fenpropathrin (Danitol) have excellent efficacy against the SB complex and are relatively ‘user friendly’ with lower mammalian toxicity but greater reduction of biological control agents such as the predatory mite T. pyri and predaceous beetle complex.

Below are the materials registered in NYS for use against the BMSB, including eficacy against stink bug in general.
BMSB Efficacy Chart

More resources for management of the stink bug complex can be found here.

About Peter J Jentsch

Peter J. Jentsch serves the mid-Hudson Valley pome fruit, grape and vegetable growers as the Senior Extension Associate in the Department of Entomology for Cornell University’s Hudson Valley Laboratory located in Highland, NY. He provides regional farmers with information on insect related research conducted on the laboratory’s 20-acre research farm for use in commercial and organic fruit and vegetable production. Peter is a graduate of the University of Nebraska with a Masters degree in Entomology. He is presently focusing on invasive insect species, monitoring in the urban environment and commercial agricultural production systems throughout the state
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