Tobacco Insect Scouting Report. July 9, 2014

— Written By tcmclamb and last updated by
Photo: Cameron McLamb

Photo: Cameron McLamb

It is week eleven for our weekly scouting reports. Budworm pressure is relatively similar to last week. With most sites planning to top within the next week or two, we expected to see the budworm pressure decrease.

None of our on-farm sites were over threshold for any insects this week, although we have seen some surprising numbers of parasitised budworms in the Piedmont.

Scouting Report, Eastern 1 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No treatment
 0 beetles/plant – No treatment
0 – No treatment 
0 – No treatment
0 – No treatment
None observed

Scouting Report, Eastern 2 – IPM Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm  infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
0 beetles/plant – No treatment
2% tobacco budworm infested plants  – No treatment 
0 hornworms/plant – No treatment
0 – No Treatment
None Observed 

Scouting Report , Eastern 3 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No treatment
 0 beetles/plant – No treatment
5% tobacco budworm budworm infested plants – No treatment
0 – No treatment
0 – No treatment
None observed 

Scouting Report, Eastern 4 – IPM Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm  infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
0.05 beetles/plant – No treatment
8% tobacco budworm infested plants – No treatment 
0 hornworms/plant – No treatment
0 – No Treatment
None observed 

Scouting Report Piedmont 1 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No treatment
 0 – No treatment
8% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No treatment
20% of plants observed had parasitised tobacco budworms 

Scouting Report, Piedmont 2 – IPM Field

Insect observation No. aphid infested plants Flea beetles/plant Percent tobacco budworm  infested plants Hornworms/plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
0 – No treatment
8% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No Treatment
12% of plants observed had parasitised tobacco budworms

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? 9% aphid infested plants – No Treatment 0 beetles/plant – No treatment 28% 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 beetles/plant – No treatment 66% budworm infested plants – No treatment** 0 – No treatment 0 – No Treatment 4% 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 beetles/plant – No treatment 8% budworm infested plants – No treatment 0% Hornworm infested plants – No treatment 0 – No Treatment 1% of plants infected with TSWV

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 15% budworm infested plants – No treatment 1% Hornworm infested plants – No treatment 0 – No Treatment 1% plants found with parasitised buworms

More Information

To see last week’s scouting report, click here.

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