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| Publication Type:
| Report |
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| Author(s): | Flanders, K. L.;
Baltikauski, M. N.;
DeLamar, Z. D. |
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| Author Affiliation: | 208A Extension Hall, Auburn University, AL 36849-5629 |
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| Title: | Green June beetle control in bermudagrass pastures, December 1995 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 22, 1997, p. 338. |
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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: Temperatures; Insecticide application; Cotinis nitida; Insect control; Cynodon dactylon; Pastures; Carbaryl
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| Abstract/Contents: | "The study was located in Westville, FL, on sandy Coastal Plain soil. Bermudagrass stubble was 3-4 inches tall. Test 1 and Test 2 were conducted in adjoining bermudagrass pastures. Average air temperature between application and evaluation was 36°F in Test 1, and 60°F in Test 2. Soil temperature at a depth of 4 inches was 47°F and 57°F, respectively. Plots were arranged in a CR design with three replications. Plots, 40 ft X 40 ft in each test, were adjacent in Test 1, and separated by 40 ft buffers in Test 2. Insecticide was applied 9 Dec (Test 1) and 12 Dec (Test 2) with a CO₂-powered boom sprayer in 43 gpa (30 psi, flat fan nozzles). Grub density was assessed by excavating soil samples, 8 X 8 X 12 inches deep, and recording number of live green June beetle grubs in the soil, and number of dead or dying grubs on the soil surface. Ten random samples from each site were dug just before treatment. Each plot was evaluated 12 Dec (Test 1), or 20 Dec (Test 2) by excavating five soil samples (total of 2.2 ft²) from the center of each plot. Results from test 1 were confounded by inter plot movement of grubs. Pretreatment grub counts averaged 19.5 per 2.2 ft² on 9 Dec. Post-treatment counts on 12 Dec showed significantly greater number of dead or dying grubs in treated plots than in untreated plots although the number of alive grubs in the soil was statistically the same in both. Best estimate of green June beetle control during cooler temperature is 49.7%, based on pretreatment counts and number of grubs still living in the treated plots. Treated plots in Test 2 had fewer live as well as dead and dying grubs than the untreated plots. 40 ft buffers between plots were apparently sufficient. Results indicate that an insecticide application as late as mid-December can give helpful control, providing soil and air temperatures are warm." |
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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):
Flanders, K. L., M. N. Baltikauski, and Z. D. DeLamar. 1997. Green June beetle control in bermudagrass pastures, December 1995. Arthropod Manage. Tests. 22:p. 338. |
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