Access the full text.
Sign up today, get DeepDyve free for 14 days.
(G19) BLUEGRASS (KENTUCKY): Poa pratensis L. COMPARISON OF EARLY TO MID-SUMMER APPLICATIONS OF IMIDACLOPRID FORMULATIONS, HALOFENOZIDE, AND PERMETHRIN AGAINST JAPANESE BEETLE, 2001 Stanley R. Swier, Alan Rollins, and Justin Duncan University of New Hampshire Department of Plant Biology 254 Spaulding Hall Durham, NH 03824-3544 Phone: (603) 862-1733 Fax: (603) 862-1713 E-mail: stanley.swier@unh.edu Japanese beetle (JB): Popillia japonica Newman This trial was conducted on a fairway at Campbell's Scottish Highlands Golf Course, Salem, NH. Test plots were 49 ft replicated four times in a RCB design. Application dates for various treatments were 15 Jun, 13 Jul, and 10 Aug. Most treatments were dry granular, applied using large saltshakers. The imidacloprid SC liquid was applied using a 7-ft boom on a two-wheel bicycle-type sprayer equipped with four 8005 nozzles and fitted with 50-mesh screens. The volume of water and insecticide mix was 2 gal/1000 ft and delivered with CO at 40psi. All treatments were irrigated to 0.25 inch within 1 hr of application, thereafter on a daily basis. The fairway was mowed at 0.4 inch. The soil composition was as follows: texture, sandy loam; sand, 69%; silt, 25%; clay, 6%; organic matter, 7.2%; and thatch depth, 1/2 inch. Weather and soil conditions for all application dates were as follows: (15 Jun) sky, clear; wind, less than 5mph; air temp, 80.0°F; soil moisture, 22.5%; soil surface temp, 94.1°F; at 1-inch depth, 74.1°F; at 2-inch depth, 71.8°F; pH, 6.7. (13 Jul) sky, partly sunny; wind, 5-10mph; air temp, 71.2°F; soil moisture, 20.0%; soil surface temp, 78.6°F; at 1-inch depth, 72.5°F; at 2-inch depth, 70.0°F; pH, 6.8. (10 Aug) sky, hazy sun; wind, 5-10mph; air temp, 89.4°F; soil moisture, 16.6%; soil surface temp, 90.0°F; at 1-inch depth, 82.9°F; at 2-inch depth, 81.0°F; pH, 6.3. The trial was rated on 10 Oct by counting the number of live grubs in 1ft . A Ryan sod cutter was used to cut the sod 12 inches wide and 2 inches deep. All imidacloprid formulations performed very well regardless of date of application with no differences among formulations. Permethrin gave poor control on all application dates. Halofenozide provided satisfactory control on 10 Aug, but gave poor control on earlier applications. Halofenozide applications on 15 Jun and 17 Jul lacked the residual to be active in the soil when grubs were present (August). No phytotoxicity was observed.
Arthropod Management Tests – Oxford University Press
Published: Jan 1, 2002
You can share this free article with as many people as you like with the url below! We hope you enjoy this feature!
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.