Tobacco Insect Scouting Report. June 12, 2014
go.ncsu.edu/readext?303698
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 ▲
Tobacco at the Eastern 4 location. Photo: Cameron McLamb
It is our seventh week of scouting at our IPM and grower standard fields. The tobacco plants are looking healthy, given substantial sunshine and rain over the past week. Budworms have started showing up in greater numbers, and flea beetles numbers have started to decline at most locations. Tomato spotted wilt virus infections have started developing in greater number of plants, but they are still at low levels in all of our fields.
Here is the week seven scouting report for our commercial fields:
Scouting Report , Eastern 1 – Grower Standard Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No treatment | 0.02 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 2.6 thrips/plant (4% of plants infected with Tomato spotted wilt virus) |
Scouting Report, Eastern 2 – IPM Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0 – No treatment | 2% budworm infested plants – No treatment | 0 – No treatment | 0 – No Treatment | 2.9 thrips/plant(6% of plants infected with TSWV) |
Scouting Report , Eastern 3 – Grower Standard Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No treatment | 0.15 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 26.9 thrips/plant |
Scouting Report, Eastern 4 – IPM Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0.18 beetles/plant – No treatment | 3% budworm infested plants – No treatment | 0 – No treatment | 0 – No Treatment | 42 thrips/plant |
Scouting Report , Piedmont 1 – Grower Standard Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No treatment | 0.10 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 3.2 thrips/plant |
Scouting Report, Piedmont 2 – IPM Field
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0.02 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 2.3 thrips/plant |
Here are the scouting reports from the control plots for our experiments at the Upper Coastal Plain Research Station near Rocky Mount, NC and the Lower Coastal Plain Research Station near Kinston, NC. For some of these experiments, the control plots receive no insecticide treatments for the entire season. For some of the experiments, we are interested in only caterpillar pests so all plants in the experiment, including the control plots, are treated in the greenhouse with imidacloprid to prevent other early season pests.
On Station, Kinston – Control plants with no insecticide treatment
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0.03 beetles/plant – No treatment | 5% budworm infested plants – No treatment | 0 – No treatment | 0 – No Treatment | 4% of plants infected with Tomato spotted wilt virus |
On Station, Kinston – Control plants treated with imidacloprid
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0.09 beetles/plant – No treatment | 3% budworm infested plants – No treatment | 0 – No treatment | 0 – No Treatment | 3% of plants infected with TSWV |
On Station, Rocky Mount – Control plants with no insecticide treatment
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0.25 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
On Station, Rocky Mount – Control plants treated with imidacloprid
| Insect observation | No. aphid infested plants | Flea beetles/plant | Percent tobacco budworm infestation | Hornworms/plant | Percent cutworm damaged plants | Other insects |
| Treatment needed? | 0 – No Treatment | 0 – No treatment | 1% budworm infested plants – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
Notes: We have started seeing higher numbers of budworms at our locations, but none are near the threshold where treatment is recommended. Weather could have an effect on pest numbers due to some heavy rainfall over the past week.
More information