Tobacco insect scouting report. June 6, 2014

A healthy plant from one of our piedmont locations. Photo: Cameron McLamb

A healthy plant from one of our Piedmont locations. Photo: Cameron McLamb

It is our sixth week of tobacco scouting, and this week brought a few changes. A small number of plants have shown signs of being infected with tomato spotted wilt virus, and budworms have made started making an appearance as well, mainly at our research station sites in Kinston and Rocky Mount.

Here is the week five scouting report:

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 8.4 thrips/plant

5% 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 0 – No treatment 0 – No treatment 0 – No Treatment 8.4 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 0.06 beetles/plant – No treatment 0 – No treatment 0 – No treatment 0 – No treatment 37.4 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 0.02 beetles/plant – No treatment 3% budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 48.5 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 0.06 beetles/plant – No treatment 0 – No treatment 0 – No treatment 0 – No treatment 3.3 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 0.06 beetles/plant – No treatment 0 – No treatment 0 – No treatment 0 – No Treatment 3.9 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 – No treatment 10% budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 1.5% 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 – No treatment 2% budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 1% 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 0.55 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 0.08 beetles/plant – No treatment 0 – No treatment 0 – No treatment 0 – No Treatment 0 – No treatment

Notes: Flea beetle sightings are down this week as the tobacco plants begin to mature, with budworms and thrips increasing.

More information

For last weeks scouting report, click here.

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Posted on Jun 5, 2014

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