Dan Anco Clemson Diseases Peanut Notes No. 93 2021

— Written By
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 ▲
Disease Control
Dan Anco
Peanuts planted the last week of April are reaching 45 DAP this week. Fungicide programs for leaf spot should begin no later than 45 DAP and starting closer to 40 or 30 DAP can be warranted in fields with a history of challenging disease pressure, later plantings, volunteers nearby, and similar risk factors. If rains prevent timely sprays, the addition of a systemic product (Alto, Aproach Prima, Priaxor, Topsin) to the tank can help buffer a little lost time somewhat. If we can be timely, Bravo is still a great option early since the canopy penetration and coverage is that much easier when the plant is small.
If soil tests indicate a need (< 0.4 lb), the 45 DAP fungicide is usually a convenient time to get boron applied in a tank mix.
Around 45 DAP peanut are big enough to look at nodules on the taproot if canopies look yellow or we suspect inoculant did not go out in-furrow at planting. Like to see at least 15 nodules per taproot.
The usual time we think about for beginning white mold fungicide protection starts at 60 DAP. This can move up in years when we have a hotter early season. In 2019 we saw this in some fields. This year we have had some spells in the 90s already and may get more in areas in the days to come. Not all fields are “white mold fields”, but for those with known histories of white mold problems, consider including fungicides for white mold management in the 45-day spray. (Excalia, Elatus, Provost, Fontelis, Convoy, teb, and more listed in the production guide).