Tobacco Insect Scouting Report. August 15, 2014

— Written By tcmclamb and last updated by
Tobacco plant almost ready for harvest at our research station in Rocky Mount. Photo: Cameron McLamb

Tobacco plant almost ready for harvest at our research station in Rocky Mount. Photo: Cameron McLamb

It is week sixteen of our weekly scouting report, and harvest has begun! Most sites are beginning to harvest and some are close to a second priming in the next one to two weeks. Flea beetle pressure still remains relatively low at all of our sites, while hornworm pressure has increased at the Rocky Mount Research Station.

Scouting Report, Eastern 1 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles  per plant Percent tobacco budworm infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No treatment
1.24 flea beetles/plant– No treatment
6% budworm infested plants – No treatment 
0 – No treatment
0 – No treatment
0.04 stilt bugs/plant
0.06 stink bugs/plant

Scouting Report, Eastern 2 – IPM Field

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm  infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
1.4 flea beetles/plant – No treatment
2% tobacco budworm infested plants  – No treatment 
0  – No treatment
0 – No Treatment
0.06 stilt bugs/plant
0.06 stink bugs/plant

Scouting Report , Eastern 3 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No treatment
4.4 flea beetles/plant – No treatment
0% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No treatment
 0.03 stink bugs/plant

Scouting Report, Eastern 4 – IPM Field

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm  infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
1.9 flea beetles/ plant– No treatment
0 tobacco budworm infested plants – No treatment 
0 – No treatment
0 – No Treatment
0.13 stilt bugs/plant 
0.05 stink bugs/plant

Scouting Report Piedmont 1 – Grower Standard Field

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 aphid infested plants – No treatment
0.68 flea beetles/plant – No treatment
0% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No treatment
0.05 parasitised budworms/plant
0.13 stilt bugs/plant

Scouting Report, Piedmont 2 – IPM Field

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm  infested plants Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed?
0 – No Treatment
1.06 flea beetles/plant– No treatment
0% tobacco budworm infested plants – No treatment
0 – No treatment
0 – No Treatment
0.04  stilt bugs/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% aphid infested plants – No Treatment 0 beetles/plant – No treatment 0% budworm infested plants – No treatment** 0.34 hornworms/ plant – No treatment 0 – No Treatment 0.16 parasitised hornworms/plant

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 0% budworm infested plants – No treatment** 0.09 hornworms/plant – No treatment 0 – No Treatment 0.13 parasitised hornworms/plant

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 0% budworm infested plants – No treatment 0.1 hornworms/plant – No treatment 0 – No Treatment 0.1 parasitised hornworms/plant

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 0% budworm infested plants – No treatment 0.03 hornworms/plant – No treatment 0 – No Treatment 0.03 parasitised hornworms/plant

On Station, Rocky Mount – Control plants with no insecticide treatment

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm infestation Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed? 0 – No Treatment 0 – No treatment 0% budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 1% plants infested with TSWV

On Station, Rocky Mount – Control plants treated with imidacloprid

Insect observation No. aphid infested plants Flea beetles per plant Percent tobacco budworm infestation Hornworms per plant Percent cutworm damaged plants Other insects
Treatment needed? 0 – No Treatment 0 – No treatment 4% budworm infested plants – No treatment 0– No treatment 0 – No Treatment 1% plants infested with TSWV

More Information:

To see last weeks scouting report, click here.