Assessing imidacloprid for Nantucket pine tip moth (Rhyacionia frustrana) suppression through regional collaborative research and focus group evaluation

McCarty, Elizabeth; Evans, Richard Kent; Blankenship, J.; Murdoch, M.; Duesterbeck, G.

doi:10.1016/j.tfp.2021.100075

Cited by 4 publications

(6 citation statements)

References 18 publications

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“…Infestation rates tend to be lower during the first growing season because NPTM colonization and establishment is just beginning (Hedden 1998). Likewise, an increase in NPTM infestation levels with growing season progression is not unusual (Nowak and Berisford 2000, Asaro and Berisford 2001, Asaro and Creighton 2011, McCarty et al 2021). Although it is not uncommon for the untreated control to have higher infestation rates later in the season, systemic insecticides showing this trend indicate a waning treatment efficacy.…”

Section: Discussionmentioning

confidence: 98%

“…This rate was determined by the maximum label rate per 0.40 ha divided by 250 seedlings. The decision to treat only 250 trees per 0.40 ha was based on a previous study that showed imidacloprid 2F does not provide sufficient season-long protection for 500 trees per 0.40 ha (McCarty et al 2021). The 250 trees per 0.40 ha rate was chosen not to reflect an operational planting density, but to begin testing products at dosages likely to effectively reduce NPTM infestation levels.…”

Section: Methodsmentioning

confidence: 99%

“…However, most studies do not extend beyond three years or carefully measure NPTM infestation levels for each generation per year. For perspective, NPTM infestation rates in young loblolly pine plantations across five Georgia Coastal Plain counties exceeded 30% in three of the five counties during one year (McCarty et al 2021). Therefore, if such infestation rates persist, chemical management for NPTM damage may be economically warranted.…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of four systemic insecticides for reducing Nantucket pine tip moth (Rhyaciona frustrana) (Lepidoptera: Tortricidae) infestation levels and improving growth metrics in loblolly pines

McCarty

Cassidy

Clabo

et al. 2023

Journal of Economic Entomology

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The Nantucket pine tip moth (NPTM) (Rhyacionia frustrana Comstock) is a native, regeneration pest of young loblolly pines (Pinus taeda L.), causing shoot dieback, tree deformity, and growth and volume declines. Soil applications of systemic insecticides may be an effective strategy to suppress NPTM populations. The study objective was to assess the efficacy of four systemic insecticide treatments (chlorantraniliprole, dinotefuran, fipronil, and imidacloprid) for two growing seasons in outplanted bareroot and containerized seedling trials. Response variables included NPTM infestation rates, along with tree height, groundline diameter, volume index, and stem form. Infestation rates significantly decreased for each systemic insecticide treatment during the first year compared to controls, although dinotefuran and imidacloprid provided season-long control in one trial. Chlorantraniliprole reduced NPTM infestation rates for two growing seasons in both trials. While imidacloprid treatments did not alter growth metrics except for one comparison, fipronil and dinotefuran treatments improved several growth metrics. Chlorantraniliprole consistently improved growth metrics throughout the study.

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Section: Discussionmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficacy of four systemic insecticides for reducing Nantucket pine tip moth (Rhyaciona frustrana) (Lepidoptera: Tortricidae) infestation levels and improving growth metrics in loblolly pines

McCarty

Cassidy

Clabo

et al. 2023

Journal of Economic Entomology

Self Cite

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“…Depending on latitude and elevation, two to five generations can occur annually (Berisford 1974, Gargiullo et al 1985, Fettig et al 2000, Berisford and Grosman 2002, Asaro et al 2004, Dixon 2005, Philip and Orr 2008, Cassidy 2017, McCarty et al 2021, Cassidy et al 2022). Growth loss and stem deformity caused by larvae feeding in growing shoots, buds, and cones, can be considerable during the first 5 years when most damage occurs (Gargiullo et al 1985, Dixon 2005, Can and Ozcankaya 2007).…”

mentioning

confidence: 99%

“…Female moths oviposit in needles and shoots. Larvae initially mine needles, then pierce the bud or shoot, severing vascular tissue and killing the apical meristem (Gargiullo et al 1984, Asaro et al 2004, McCarty et al 2021).…”

mentioning

confidence: 99%

New Record of Rhyacionia frustrana (Lepidoptera: Tortricidae) at Nuevo Ideal, Durango, Mexico

Álvarez-Zagoya,

Pérez-Santiago,

Castañon-Alaniz

et al. 2023

Southwestern Entomologist

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Nantucket pine tip moth, Rhyacionia frustrana Comstock (Lepidoptera: Tortricidae), is a commercially important pest of nurseries, ornamental pines, seed orchards, Christmas tree plantations, and regeneration pine plantations (Lashomb et al. 1978, Malinoski and Paine 1988, Can and Ozcankaya 2007. Nantucket pine tip moth is a pest of most North American pine species (Young 2006). Although usually considered a pest of the southern United States, the moth is found throughout much of the eastern half of the United States, southern Mexico, and Central America. It is established in southern California and parts of Arizona and New Mexico where it was accidentally introduced (Berisford and Grosman 2002). It is also found in Dominican

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Loblolly Pine Susceptibility to Nantucket Pine Tip Moth: Do Tree Genetics Play a Role?

et al. 2023

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The Nantucket pine tip moth (NPTM) (Rhyacionia frustrana Comstock) is a regeneration pest of young loblolly pines (Pinus taeda L.) that causes tree deformity, shoot dieback, and growth declines. Different silvicultural techniques are used to grow loblolly pine more effectively, including improved genotypes. Some scientists and growers have hypothesized that more expensive full-sibling families (control-pollinated [CP]) seedlings may be more susceptible to NPTM than open-pollinated (OP) families. The study objective was to assess the susceptibility to NPTM of seven loblolly OP and CP families commonly planted in the southeastern United States by observing NPTM infestation rates and pine growth metrics (height, groundline diameter, volume index, and stem form) over two growing seasons. The NPTM infestation rates varied throughout both growing seasons; however, there was no difference in infestation rates among any of the families. Pine growth metrics varied among families at the time of planting; however, growth metrics did not vary after the first and second growing seasons. Results of this study suggest that NPTM management tactics, such as insecticide use, should not be prioritized based on loblolly pine families alone, as the CP families assessed in this study were not more susceptible to NPTM than OP families. Study Implications: In this study, five open-pollinated half-sibling families and two control-pollinated full-sibling families had no differences in Nantucket pine tip moth (NPTM) infestation rates through two growing seasons (2019–2020). High infestation rates (greater than the 3-year 30% NPTM infestation rate economic injury levels) in September and October for both years and each genotype indicated that NPTM control measures may be warranted for young plantations in the Atlantic Lower Coastal Plain. Growth and stem form differences by genotype had not occurred after two growing seasons but may develop as these stands age and merits their future monitoring.

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Assessing imidacloprid for Nantucket pine tip moth (Rhyacionia frustrana) suppression through regional collaborative research and focus group evaluation

Cited by 4 publications

References 18 publications

Efficacy of four systemic insecticides for reducing Nantucket pine tip moth (Rhyaciona frustrana) (Lepidoptera: Tortricidae) infestation levels and improving growth metrics in loblolly pines

Efficacy of four systemic insecticides for reducing Nantucket pine tip moth (Rhyaciona frustrana) (Lepidoptera: Tortricidae) infestation levels and improving growth metrics in loblolly pines

New Record of Rhyacionia frustrana (Lepidoptera: Tortricidae) at Nuevo Ideal, Durango, Mexico

Loblolly Pine Susceptibility to Nantucket Pine Tip Moth: Do Tree Genetics Play a Role?

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