TY - JOUR
T1 - Spotted lanternfly (Hemiptera: Fulgoridae) can complete development and reproduce without access to the preferred host, ailanthus altissima
AU - Uyi, Osariyekemwen
AU - Keller, Joseph A.
AU - Johnson, Anne
AU - Long, David
AU - Walsh, Brian
AU - Hoover, Kelli
N1 - Funding Information:
We thank Elizabeth Wagner, Emelie Swackhamer, Scott Swackhamer, and Jason Bateman for assistance during the field study. Funding was provided by Cooperative Agreements with USDA Forest Service Forest Health Protection (Grant 18-CA-11420004-198) and USDA APHIS, and grants from the USDA NIFA and McIntire-Stennis Appropriations under Project #PEN04684 and Accession #1018126, the Pennsylvania Department of Agriculture (Grant 44187340), and the Horticultural Research Institute. This work was also supported in part by the USDA National Institute of Food and Agriculture and Hatch Appropriations under Project #PEN04728 and Accession #1021211.
Publisher Copyright:
© 2020 The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved.
PY - 2020/10/1
Y1 - 2020/10/1
N2 - Despite its broad host range, the spotted lanternfly Lycorma delicatula (White), is known to have a marked preference for Ailanthus altissima. However, whether this polyphagous phloem feeder can complete its life cycle in the absence of A. altissima is unknown. We examined the performance of L. delicatula with and without access to A. altissima by tracking development, survival, host tree species association, and oviposition in large enclosures planted with Salix babylonica and Acer saccharinum along with either A. altissima or Betula nigra. We monitored enclosures from late May 2019 through June 2020. Lycorma delicatula survival was slightly higher in enclosures with A. altissima and 50% of individuals in A. altissima enclosures reached the adult stage ~6.5 d earlier than in enclosures without A. altissima. In the presence of A. altissima, nymphs were most frequently observed on this host while adults were found at similar frequencies on A. altissima and A. saccharinum. In the absence of A. altissima, nymphs were most frequently associated with S. babylonica and A. saccharinum, while adults were most often found on A. saccharinum. Females laid a total of 46 and 6 egg masses in enclosures with and without A. altissima, respectively, before freezing temperatures killed the remaining adults. The proportion of eggs that hatched per egg mass did not differ between treatments. Although L. delicatula can complete development and reproduce on other host species without access to A. altissima, fitness was reduced. These findings have implications for management that relies exclusively on treatment of A. altissima.
AB - Despite its broad host range, the spotted lanternfly Lycorma delicatula (White), is known to have a marked preference for Ailanthus altissima. However, whether this polyphagous phloem feeder can complete its life cycle in the absence of A. altissima is unknown. We examined the performance of L. delicatula with and without access to A. altissima by tracking development, survival, host tree species association, and oviposition in large enclosures planted with Salix babylonica and Acer saccharinum along with either A. altissima or Betula nigra. We monitored enclosures from late May 2019 through June 2020. Lycorma delicatula survival was slightly higher in enclosures with A. altissima and 50% of individuals in A. altissima enclosures reached the adult stage ~6.5 d earlier than in enclosures without A. altissima. In the presence of A. altissima, nymphs were most frequently observed on this host while adults were found at similar frequencies on A. altissima and A. saccharinum. In the absence of A. altissima, nymphs were most frequently associated with S. babylonica and A. saccharinum, while adults were most often found on A. saccharinum. Females laid a total of 46 and 6 egg masses in enclosures with and without A. altissima, respectively, before freezing temperatures killed the remaining adults. The proportion of eggs that hatched per egg mass did not differ between treatments. Although L. delicatula can complete development and reproduce on other host species without access to A. altissima, fitness was reduced. These findings have implications for management that relies exclusively on treatment of A. altissima.
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U2 - 10.1093/ee/nvaa083
DO - 10.1093/ee/nvaa083
M3 - Article
C2 - 32725170
AN - SCOPUS:85093705523
SN - 0046-225X
VL - 49
SP - 1185
EP - 1190
JO - Environmental entomology
JF - Environmental entomology
IS - 5
ER -