Cotton Jassid Leafhopper Reported on Okra in NC
go.ncsu.edu/readext?1094837
en Español / em Português
El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.
Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.
Português
Inglês é o idioma de controle desta página. Na medida que haja algum conflito entre o texto original em Inglês e a tradução, o Inglês prevalece.
Ao clicar no link de tradução, um serviço gratuito de tradução será ativado para converter a página para o Português. Como em qualquer tradução pela internet, a conversão não é sensivel ao contexto e pode não ocorrer a tradução para o significado orginal. O serviço de Extensão da Carolina do Norte (NC State Extension) não garante a exatidão do texto traduzido. Por favor, observe que algumas funções ou serviços podem não funcionar como esperado após a tradução.
English
English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.
Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.
Collapse ▲
Cotton jassid, a.k.a. cotton leafhopper or two-spotted leafhopper (Amrasca biguttula)
Two weeks ago Dominic Reisig reported the first detection of the invasive cotton jassid leafhopper (Amrasca biguttula) on cotton in NC in Robeson County. Last week, Mack Johnson, Extension Agent in Robeson County, reported a grower finding the insect (which is also referred to as the cotton leafhopper or two-spotted leafhopper) in okra. In addition to okra and cotton, its host range includes several other vegetable crops, including eggplant, tomato, potato, and legumes. Although it appears to have distinct preferences for certain plant species, its general host range includes plants in the families Solanaceae, Fabaceae, Malvaceae, and Asteraceae.
Distribution and Spread: The cotton leafhopper is native to Asia and was first reported in the US in Florida in 2024. It has rapidly spread throughout the Southeast, and in 2025 has been reported in FL, GA, AL, SC and now NC. Habitat suitability models predicting areas of probable occurrence suggest that the Atlantic Coastal Plains region of the Southeast is at the highest risk. Most detections thus far have been in this ecoregion, but that is also where cotton is most common and hence where sampling has been most abundant. Its ability to overwinter in NC is not well understood at this time.
Damage and Management on Vegetables: Both adults and nymphs feed on the underside of leaves and inject a toxic salivary secretion while feeding. Damage is expressed as hopperburn, a curling and discoloration of leaves, beginning on the edge and eventually taking over the whole leaf. The potential for serious damage is evident in the okra infestation in Robeson County.
Cotton jassid leafhopper damage in an okra field (L) and on okra leaves (R)
Although there is little information on insecticide efficacy specific to the cotton leafhopper, most insecticides effective against native leafhoppers should suppress or control the cotton leafhopper. This includes most neonicotinoids (e.g., Assail, Admire, Actara) as well as other products recommended for leafhoppers, such as flonicamid (Beleaf). Tests on cotton in Georgia suggest that pyrethroids (e.g., bifenthrin) were less effective. However, insecticides targeting this pest should not be applied unless the insect has been detected and symptoms are present.
If this insect is suspected of occurring on vegetable crops, contact your local County Extension Agent.