Tobacco Insect Scouting Report. August 22, 2014

— Written By tcmclamb and last updated by

It is week seventeen with our scouting reports, and not much change can be seen. There are still a few flea beetles, but well under threshold amounts. Hornworm pressure seems to be declining, and there are still quite a few stilt bugs hanging around on the plants, which are beneficial! Harvest is in full swing at most sites and will continue on for the next few weeks.

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 0.78 flea beetles/plant– No treatment 0% budworm infested plants – No treatment 0 – No treatment 0 – No treatment 0.18 stilt bugs/plant – 0 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 2.84 flea beetles/plant – No treatment 0% tobacco budworm infested plants  – No treatment 0  – No treatment 0 – No Treatment 0.1 stilt bugs/plant – 0 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 2.5 flea beetles/plant – No treatment 0% tobacco budworm infested plants – No treatment 0 – No treatment 0 – No treatment  0.03 stilt 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 2.9 flea beetles/ plant– No treatment 0% tobacco budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 0.05 stilt bugs/plant – 0.08 stink bugs/plant – .08 big eye bugs

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? .03 aphid infested plants – No treatment 0.48 flea beetles/plant – No treatment 0% tobacco budworm infested plants – No treatment 0 – No treatment 0 – No treatment 0.03 parasitized budworms/plant0.13 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 1.9 flea beetles/plant– No treatment 0% tobacco budworm infested plants – No treatment 0 – No treatment 0 – No Treatment 0.10  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 hornworms/ plant – No treatment 0 – No Treatment 0.01 parasitized 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 hornworms/plant – No treatment 0 – No Treatment 0.01 parasitized 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? 0.01 aphid infested plants – No Treatment 0 beetles/plant – No treatment 0% budworm infested plants – No treatment 0.14 hornworms/plant – No treatment** 0 – No Treatment 0.27 parasitized 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 0.07 hornworms/plant – No treatment 0 – No Treatment 0.08 parasitized hornworms/plant

**Over threshold but not treated because plots are “control” plots for experiment

More Information:

View last week’s scouting report.