Tobacco Insect Scouting Report. May 21, 2014
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The tobacco plants have grown quite a bit since the last scouting report. Photo: Cameron McLamb
Plants have grown quite a bit in the last week, likely due to increased rainfall. There were a couple of flea beetle sightings in our Eastern 4 IPM field, but most fields showed no increase in pest activity.
We have heard a few reports from fields in the southeastern part of the state with very small tobacco budworm larvae, but these fields are also far below treatment thresholds. It’s also important to note that lots of things are out to kill small tobacco budworm larvae, including parasitic wasps and stilt bugs. Therefore, having small larvae in your field this week below threshold does not mean that you will have populations above threshold next week! You can create problems and unnecessary cost by treating an insect population too early!
Here are the scouting reports for week four:
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 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment |
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 | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
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 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment |
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 | 0.05 beetles/plant– No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
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 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No treatment |
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 – No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
In addition to scouting observations on farm this week and for future reports, we are including scouting information 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 | 0.05 beetles/plant– No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
On Station, Kinston – Control plants treated with imidicloprid
| 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 | 0.025 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
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 | 0.18 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 | 0.09 beetles/plant – No treatment | 0 – No treatment | 0 – No treatment | 0 – No Treatment | 0 – No treatment |
More Information:
See the week three scouting report.
For more information on the Integrated Pest Management project, refer to the week one scouting report.