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| Publication Type:
| Report |
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| Author(s): | Hertl, P. T.;
Brandenburg, R. L. |
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| Author Affiliation: | Department of Entomology, North Carolina State University, Raleigh, NC |
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| Title: | Evaluation of Beauveria bassiana spore applications for control of mole cricket nymphs in turf, 1997 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 23, 1998, p. 323. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Scapteriscus borellii; Pest control; Insect control; Insecticides; Insecticide evaluation; Pest density; Entomopathogenic fungi; Application rates; Golf courses; Golf fairways; Mole crickets; Mole cricket control; Imidacloprid; Beauveria bassiana; Biological control; Ethoprophos
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| Abstract/Contents: | "The efficacy of Beauveria bassiana spore (BotaniGard ES) applications in controlling mole cricket nymphs in turf, as well as the potential interaction of the fungus with the insecticide imidacloprid was investigated in a field trial. Plots 25 ft x 25 ft were established in an area with a history of mole cricket infestation on a bermudagrass fairway at the Fox Squirrel Country Club in Brunswick Co, NC. The test was set up in a CRBD with four replicates for each treatment. Plots for two of the Beauveria treatments and the Merit 0.5 G treatment plots were treated on 27 Jun with the low label rate (0.3 lb (AI)/acre) of Merit 0.5 G using a hand-held Republic EZ Handspreader®. Soil was moist at the time of application and 4-inch soil temperature was 85°F. The fairway irrigation system was used to apply 0.25 inch of water to the test site immediately following application and a long, hard rain occurred shortly thereafter. All other treatments were applied late in the afternoon on 13 Aug. The test site was pre-irrigated with approximately 0.25 inch of water using the fairway irrigation system. The 4-inch soil temperature on this date was 86°F. All Beauveria treatments were applied using a John Deere® Turf Gator-mounted research spray delivering approximately 27 gpa. The Mocap 10 G was applied using a hand-held Republic EZ handspreader®. The entire site received approximately 0.5 inch of irrigation immediately following application. Soil at the test site was classified as Leon fine sand with a pH of 6.0 and 0.86% humic matter. Soapy water flush sampling at the site indicate that the fairway population was comprised primarily of the Southern mole cricket. Plots were evaluated for fresh mole cricket damage on 20, 27 Aug, and 4, 10 Sep using the damage grid evaluation method of Cobb and Mack (1989). A m² grid divided into nine subsections was randomly placed in the plot and a damage rating (0-9) given based on the occurrence of fresh damage in the nine subsections (with 0 = no damage and 9 = severe damage). Five ratings were made in each plot on each sampling date. The actual damage means are reported in the Table. All data was transformed √(x + 0.5) prior to ANOVA and DNMRT. Damage grid evaluation of the plots on 20 Aug reveal no significant differences in the occurrence of fresh damage between any of the insecticide treatments and the untreated control. There was significantly less damage in the Merit 0.5 G + BotaniGard ES (0.3 lb (AI)/acre + 0.25 fl oz/1000 ft²) and Mocap 10 G greatments than in the Merit 0.5 Gtreatment applied 27 Jun. Evaluation on 27 Aug show significantly less damage in the Merit 75 WP + BotaniGard ES tank mix treatment and the Mocap 10 G treatment than was observed in the untreated control. All insecticide treatments had significantly less damage than the Merit 0.5 G treatment applied 27 Jun. Evaluation on 3 Sep reveal that all insecticide treatments except the Merit 0.5 G treatment of 27 Jun had significantly less damage than the untreated control. At this date Mocap 10 G treated plots had significantly less damage than any of the other insecticide treatments except the Merit 75 WP x BotaniGardES tank mix treatment. The final evaluation of the plot on 10 Sep revveal that only the Merit 75 WP + BotaniGard ES tank mix treatment (applied 13 Aug) and the Mocap 0 G treatment had significantly less damage than the untreated control. Damage in the Merit 0.5 G + BotaniGard ES (0.3 lb (AI)/acre + 0.25 fl oz/1000 ft²) treated plot were not significantly different from damage in these two treatments or in the untreated control. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hertl, P. T., and R. L. Brandenburg. 1998. Evaluation of Beauveria bassiana spore applications for control of mole cricket nymphs in turf, 1997. Arthropod Manage. Tests. 23:p. 323. |
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