<i>Lymantria dispar dispar</i> (Gypsy) Moth Dermatitis

Gooderham, Melinda; Haq, Mawiyah; Beecker, Jennifer; O’Toole, Ashley

doi:10.1177/12034754211032206

Cited by 4 publications

(7 citation statements)

References 4 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Lymantria dispar dispar est une espèce envahissante de l’Amérique du Nord qui se propage à une vitesse d’environ 21 km par année sur des cycles d’expansion de 7 à 10 ans. On a rapporté des éclosions épidémiques de dermatites depuis 1981; une étude transversale portant sur 2 villes du Massachusetts touchées par une épidémie en 1982 a démontré des taux d’érythème de 1.6 % et de 10.4 % 1 , 2 .…”

unclassified

“…En 2019, on a déclaré une éclosion dans le sud de l’Ontario, avec un accroissement annuel de la gravité jusqu’en 2021 1 . On croit que les dermatites de contact aiguës après une exposition à L. dispar dispar constitueraient une réaction d’hypersensibilité de type IV, liées à la libération d’histamine issue des poils de la chenille 1 . Il est important de noter qu’on peut perturber de fins poils et les pulvériser; la pénétration oculaire peut entraîner une ophtalmia nodosa (conjonctivite par poils de chenille) et nécessiter une consultation en ophthalmologie 3 .…”

unclassified

See 2 more Smart Citations

Dermatite causée par une exposition à Lymantria dispar dispar

Croitoru

Brooks

Pon

2022

CMAJ

View full text Add to dashboard Cite

unclassified

See 1 more Smart Citation

Dermatite causée par une exposition à Lymantria dispar dispar

Croitoru

Brooks

Pon

2022

CMAJ

View full text Add to dashboard Cite

“…Epidemic outbreaks of dermatitis have been reported since 1981; a cross-sectional study of 2 towns in Massachusetts affected by an epidemic in 1982 showed rash rates of 1.6% and 10.4%. 1,2 In 2019, an outbreak was declared in southern Ontario, with a yearly increase in severity through 2021. 1 Acute contact dermatitis from L. dispar dispar is thought to be both a type IV hypersensitivity reaction and related to histamine released from the caterpillar's hairs.…”

mentioning

confidence: 99%

“…1 Acute contact dermatitis from L. dispar dispar is thought to be both a type IV hypersensitivity reaction and related to histamine released from the caterpillar's hairs. 1 Importantly, the fine hairs may be disrupted and aerosolized; ocular penetration can cause ophthalmia nodosa and may require referral to an ophthalmologist. 3 Greater awareness among clinicians of L. dispar dispar as a possible cause of severe delayed-onset hypersensitivity requiring prednisone, as well as public education on the use of thick protective garments including eyewear when handling the cater pillars, is important while this moth species is epidemic in Canada.…”

mentioning

confidence: 99%

Dermatitis after exposure to Lymantria dispar dispar

Croitoru

Brooks

Pon

2022

CMAJ

View full text Add to dashboard Cite

In early June 2021, a 60-year-old man presented to our emergency department with 4 days of progressive facial swelling and pruritic rash that was not responsive to valacyclovir (Figure 1). Slit-lamp examination did not suggest herpes zoster or ophthalmia nodosa.Sixteen hours before onset, he had been removing and shaking a burlap trap, placed because of a local infestation of Lymantria dispar dispar moths. He reported no previous reactions to latex, atopy nor prior contact with this moth species, but reported annual infestations of L. dispar dispar on his property since 2019.We treated the patient with prednisone (20 mg once a day for 7 days), and his lesions resolved in 3 weeks. Two weeks later, he developed a similar eruption 1 day after weeding under a maple tree infested with L. dispar dispar. This cleared after another 2 weeks of prednisone, which was then tapered, with no recurrence.Our patient's delayed-onset dermatitis with a history of exposure to L. dispar dispar, which recurred after another exposure, strongly supports a diagnosis of allergic contact dermatitis from this moth species. Our differential diagnoses included other causes of allergic contact dermatitis (such as latex and urushiol, the hapten in poison ivy, poison oak and sumac), irritant contact dermatitis and herpes zoster, but we considered these unlikely because of the distribution, delayed onset and pruritus, respectively.Lymantria dispar dispar is invasive to North America, spreading at about 21 km/year over 7-to 10-year cycles of expansion. Epidemic outbreaks of dermatitis have been reported since 1981; a cross-sectional study of 2 towns in Massachusetts affected by an epidemic in 1982 showed rash rates of 1.6% and 10.4%. 1,2 In 2019, an outbreak was declared in southern Ontario, with a yearly increase in severity through 2021. 1 Acute contact dermatitis from L. dispar dispar is thought to be both a type IV hypersensitivity reaction and related to histamine released from the caterpillar's hairs. 1 Importantly, the fine hairs may be disrupted and aerosolized; ocular penetration can cause ophthalmia nodosa and may require referral to an ophthalmologist. 3 Greater awareness among clinicians of L. dispar dispar as a possible cause of severe delayed-onset hypersensitivity requiring prednisone, as well as public education on the use of thick protective garments including eyewear when handling the cater pillars, is important while this moth species is epidemic in Canada.

show abstract

Assessment of spongy moth infestation impacts on forest productivity and carbon loss using the Sentinel-2 satellite remote sensing and eddy covariance flux data

Hussain,

Gonsamo,

Wang

et al. 2024

Ecol Process

View full text Add to dashboard Cite

Background Deciduous forests in eastern North America experienced a widespread and intense spongy moth (Lymantria dispar) infestation in 2021. This study quantified the impact of this spongy moth infestation on carbon (C) cycle in forests across the Great Lakes region in Canada, utilizing high-resolution (10 × 10 m2) Sentinel-2 satellite remote sensing images and eddy covariance (EC) flux data. Study results showed a significant reduction in leaf area index (LAI) and gross primary productivity (GPP) values in deciduous and mixed forests in the region in 2021. Results Remote sensing derived, growing season mean LAI values of deciduous (mixed) forests were 3.66 (3.18), 2.74 (2.64), and 3.53 (2.94) m2 m−2 in 2020, 2021 and 2022, respectively, indicating about 24 (14)% reduction in LAI, as compared to pre- and post-infestation years. Similarly, growing season GPP values in deciduous (mixed) forests were 1338 (1208), 868 (932), and 1367 (1175) g C m−2, respectively in 2020, 2021 and 2022, showing about 35 (22)% reduction in GPP in 2021 as compared to pre- and post-infestation years. This infestation induced reduction in GPP of deciduous and mixed forests, when upscaled to whole study area (178,000 km2), resulted in 21.1 (21.4) Mt of C loss as compared to 2020 (2022), respectively. It shows the large scale of C losses caused by this infestation in Canadian Great Lakes region. Conclusions The methods developed in this study offer valuable tools to assess and quantify natural disturbance impacts on the regional C balance of forest ecosystems by integrating field observations, high-resolution remote sensing data and models. Study results will also help in developing sustainable forest management practices to achieve net-zero C emission goals through nature-based climate change solutions.

show abstract

Lymantria dispar dispar (Gypsy) Moth Dermatitis

Cited by 4 publications

References 4 publications

Dermatite causée par une exposition à Lymantria dispar dispar

Dermatite causée par une exposition à Lymantria dispar dispar

Dermatitis after exposure to Lymantria dispar dispar

Assessment of spongy moth infestation impacts on forest productivity and carbon loss using the Sentinel-2 satellite remote sensing and eddy covariance flux data

Contact Info

Product

Resources

About