Tobacco Insect Scouting Report. July 17, 2014

— Written By tcmclamb and last updated by Hannah Burrack
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It is now week twelve for our weekly scouting report and pest pressure is lower compared to the past few weeks. Due to topping at most sites, tobacco budworm populations are down, and hornworms have not yet become an issue. Although numbers are low, flea beetles have started to make their way back onto the plants at some of our locations including one of our Eastern locations, as well as both our Piedmont locations.

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
0% tobacco budworm infested plants  – No treatment 
0 hornworms/plant – No treatment
0 – No Treatment
6% plants had tbw eggs on flowers

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
 0.08 beetles/plant – No treatment
0% tobacco 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 beetles/plant – No treatment
2.5% 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?
5% aphid infested plants – No treatment
 0.13 flea beetles/plant – No treatment
0% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No treatment
2.5% 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
0.02 flea beetles/plant – No treatment
0% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No Treatment
10% 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 – No data taken due to topping**

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 4% 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 7% budworm infested plants – No treatment 0% Hornworm infested plants – No treatment 0 – No Treatment 1% plants infected with TSWV
Updated on Jan 14, 2016
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