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Haplaxius crudus

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Haplaxius crudus is a planthopper species in the genus Haplaxius.

H. crudus is the vector of the coconut lethal yellowing/16SrIV-A.[1][2]

Range

Throughout the Caribbean and in Florida.[2]

Hosts

The nymphs are found on over 40 species of Poaceae and Cyperaceae in the Neotropical. In urban Florida habitats they prefer St. Augustine grass. Adults feed exclusively on the foliage of 30 species of Arecaceae. Adults seem to prefer Cocos nucifera but that may be due to observations being made around plantations, where surrounding grass provides a good combination of habitats for both nymphs and adults.[2] Have been known since at least 1978 as the most common insect on C. nucifera in Florida and Jamaica.[3]

As a vector

Vector of lethal yellowing/16SrIV-A phytoplasma.[1][2]

Economic impact

Has transmitted the LY responsible for the deaths of millions of ornamental and farmed palms throughout the Caribbean. Note that in the absence of a phytoplasma to vector, does not damage host palms.[2]

Management

Replacement of nymph host populations in nurseries with anything non-monocot, diazinon application on nymph hosts, and systemic dimethoate injection of the adult hosts.[2]

References

  1. ^ a b Brown, S.E., Been, B.O. & McLaughlin, W.A. (2006). Detection and variability of the lethal yellowing group (16Sr IV) phytoplasmas in the Cedusa sp. (Hemiptera: Auchenorrhyncha: Derbidae) in Jamaica. Annals of Applied Biology, 149(1), pp. 53–62
  2. ^ a b c d e f Bahder, Brian W. (July 2021). The American Palm Cixiid Haplaxius crudus Van Duzee (Insecta: Hemiptera: Cixiidae). Electronic Data Information Source (EDIS) (Report). Vol. 4. Institute of Food and Agricultural Sciences (IFAS), University of Florida. pp. 1–3.
  3. ^ Tsai, James H.; Kirsch, Oscar H. (1978-04-01). "Bionomics of Haplaxius crudus (Homoptera: Cixiidae)". Environmental Entomology. Entomological Society of America (OUP). 7 (2): 305–308. doi:10.1093/ee/7.2.305. ISSN 1938-2936. S2CID 87588429.

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Haplaxius crudus: Brief Summary

provided by wikipedia EN

Haplaxius crudus is a planthopper species in the genus Haplaxius.

H. crudus is the vector of the coconut lethal yellowing/16SrIV-A.

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Haplaxius crudus ( French )

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Haplaxius crudus est une espèce d'insectes hémiptères de la famille des Cixiidae, originaire des régions tropicales d'Amérique.

La forme adulte de cette cicadelle se nourrit sur les palmiers, principalement le cocotier, tandis que les formes larvaires vivent dans les racines de plantes herbacées.

Cette espèce est le vecteur d'un phytoplasme, 'Candidatus Phytoplasma palmae', responsable du jaunissement mortel du palmier, en Floride et dans les Antilles[1].

Synonymes

Selon Catalogue of Life (26 septembre 2013)[2] :

  • Haplaxius cocois (Fennah, 1945)
  • Myndus crudus Van Duzee, 1907
  • Paramyndus cocois Fennah, 1945

Notes et références

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Haplaxius crudus: Brief Summary ( French )

provided by wikipedia FR

Haplaxius crudus est une espèce d'insectes hémiptères de la famille des Cixiidae, originaire des régions tropicales d'Amérique.

La forme adulte de cette cicadelle se nourrit sur les palmiers, principalement le cocotier, tandis que les formes larvaires vivent dans les racines de plantes herbacées.

Cette espèce est le vecteur d'un phytoplasme, 'Candidatus Phytoplasma palmae', responsable du jaunissement mortel du palmier, en Floride et dans les Antilles.

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