Weed Control Questions Peanut Notes No. 127 2024

— Written By
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.


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 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 ▲

Question 1:

Grower has weeds and grasses. Weeds include morningglory (pitted and entireleaf,) pigweed, Palmer amaranth, cocklebur and purslane. One of the fields has been sprayed with Storm and Butyrac only and another sprayed with Gramoxone, Dual, and Basagran. Farmer is planning to use Cadre. What should mix with Cadre?


Cadre plus Ultra Blazer (or Cobra) plus 2,4-DB plus 80/20 surfactant at 1 quart per 100 gallons. In a few weeks we can see what gets through and correct. Cadre will give some grass control. Sometimes it is enough.

Question 2:

Spray recommendation. Farmer is chopping out big pigweeds now. (Image had very large entireleaf morningglory.)


I would see what Ultra Blazer at 1.5 pints plus 2,4-DB at 1 pint does.

Follow up:

Used 1.5 pints of Ultra Blazer already.


2 sequential sprays of 2,4-DB.

Follow up:

Would you use Cobra or Cadre? How close together should sprays be?


2 weeks for another PPO. Cadre will miss some weeds (Palmer amaranth) due to resistance. 2 sprays of 2,4-DB might suppress Palmer amaranth well enough. But if there are small weeds in addition to big ones, a PPO will get the small ones.

Follow up:

Two sprays of 2,4-DB at one pint, 2 weeks apart with surfactant?


Yes, 80/20 surfactant. Can likely tag it along with a fungicide spray for one of the applications.

Question 3:

Peanuts have been blooming for two weeks. Grower wants to spray Zidua + 2,4-DB + MSO (methylated seed oil). Any concerns?


Leave off MSO. Not helpful and will likely increase injury.

Question 4:

Grower wants to apply Basagran plus 2,4-DB for nutsedge and sicklepod. Is there something better?


This will control yellow nutsedge and sicklepod. It will not control purple nutsedge, but that species is very limited across the peanut belt at this point in time. Cadre is the best option as it will kill both weeds in question. It does have a carryover restriction to cotton.

Follow up:

The growers has already applied Cadre.


Cadre works a lot better when we get rains behind it. It has been dry, so that might explain why the farmer feels like a second application of something is needed. Overtime, the Cadre may control many of the weeds with its residual activity. But the mixture of Basagran and 2,4-DB with 80/20 surfactant is the next most effective treatment on these weeds.