Skip to main content

NC State Extension

Thrips

en Español / em Português
Español

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 ▲

Injury and damage. Various thrips species feed and reproduce on the leaves and buds of soybean seedlings. Their feeding creates bleached-out lesions along the leaf veins and gives a silvery/bronzed appearance to the leaf surface when damage is severe. Often, injured plants will have numerous black and white cross-striped adult thrips and yellow immature thrips on the leaves; these insects are very small (less than 1/10 inch) and are torpedo shaped. While thrips always occur on soybean seedlings, it is only during outbreak years that they cause concern. In particular, during dry weather and on earlier planted full-season soybeans, thrips populations can soar when plants are growing slowly. Under these circumstances thrips injury can occasionally kill seedlings, although this is rare. Other stressors, such as herbicide injury, can add to thrips damage and cause plant loss.

Insecticide Management. Multiple research trials have indicated that, although plants may look very poor, thrips seldom justify foliar insecticide treatment. Furthermore, in multiple research trials, yields have never been show to benefit from any insecticidal seed treatment. Although many of these products reduce thrips abundance and may produce a healthier looking seedling, soybean plants are thought to compensate for this early injury. Finally, research has found that severe thrips injury may increase damage from post emergence herbicides that cause leaf burn. This may be a concern in fields planted to conventional soybeans, due to glyphosate weed resistance.