Full TGIF Record # 333363
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150070
    Last checked: 11/29/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Godara, Navdeep; Koo, Daewon; Askew, Shawn D.
Author Affiliation:Godara: Presenting Author and Virginia Tech, Blacksburg, VA; Koo: Virginia Tech, Blacksburg, VA; Askew: Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA
Title:Impacts of turf protection products on morphology and reflectance of weedy flowers, and associated pollinator foraging
Section:Turf pest management oral I (includes student competition)
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C05 turfgrass science
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 150070.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"The recent decline in pollinator abundance threatens global food production. Pollinators risk exposure to insecticide residue when visiting weedy flowers in urban landscapes. Previous researchers documented that ultraviolet (UV) floral features affect pollinator foraging behavior, and we hypothesized that turf protection products (TPPs) will alter the ultraviolet reflectance (UV-R) of weedy flowers and associated pollinator foraging. A study was conducted at Blacksburg, VA in 2023 to assess the effect of TPPs on the UV-R and morphology of dandelion flowers and associated pollinator foraging. Treatments included a nontreated control, TurfScreen® (ZnO, TiO2, phthalocyanine), Tinopal® (benzenesulfonic acid) at 2% and 3% vv-1; Exteris Stressgard® (fluopyram, trifloxystrobin, phthalocyanine); Trimec Classic® (2,4-D, MCPP, dicamba); Halo 75 WDG® (halosulfuron); Dismiss Turf® (sulfentrazone); Pylex® (topramezone); Coppertone® Sunscreen (avobenzone, homosalate, octisalate, oxybenzone); and Coppertone® Sunscreen (sprayed with atomizer). Nontreated dandelion reflected UV 20% at petal apex and UV-R was reduced to 6% by residue of Tinopal and Sunscreen. These treatments also reduced honey bee foraging visits by 50% for up to 2 d after treatment (DAT). Similarly, Exteris SG and Trimec Classic also reduced UV-R to <12%, but this reduction was caused by morphological alteration in flowers and not residue. Nonherbicide TPPs discolored petals <20% at 14 DAT. Honey bee foraging on dandelion flowers was transiently suppressed after Exteris SG, Tinopal, and Sunscreen treatment but completely inhibited at 14 DAT when Trimec Classic and Pylex were applied. Herbicides reduced the floral density >90% other than sulfentrazone, but speed of activity depended on the herbicide's mode of action. Practitioners should be aware that certain turf pigments alter pollinator foraging behavior and herbicides cause long-term food shortage. Some of these TPPs, like the optical brightener Tinopal, could be used in conjunction with insecticide sprays to reduce honeybee foraging in treated areas and potentially reduce bee exposure to harmful insecticides."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Godara, N., D. Koo, and S. D. Askew. 2023. Impacts of turf protection products on morphology and reflectance of weedy flowers, and associated pollinator foraging. Agron. Abr. p. 150070.
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    Last checked: 11/29/2023
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