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| Web URL(s): | https://www.plantmanagementnetwork.org/sub/trial/amt31/PDF/G/G38.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Heller, P. R.;
Kline, D.;
Ellis, P. J. |
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| Author Affiliation: | Department of Entomology, Pennsylvania State University, University Park, Pennsylvania |
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| Title: | Early July application of DPXE2Y45, Grubex, and Merit to preventively suppress scarab white grubs, 2005 |
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| Source: | Arthropod Management Tests. Vol. 31, 2006, p. G38. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Poa pratensis; Festuca; Lolium perenne; Application timing; Imidacloprid; White grubs; Popillia japonica; Cyclocephala borealis; Application rates; Grub control; Preventive control; Insecticide trials
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| Abstract/Contents: | "This study was undertaken to determine product effectiveness when applied in early Jul to control a predominant Northern masked chafer (NMC) and Japanese beetle (JB) white grub population on a turfgrass area maintained on a driving range in Centre County, PA. The turfgrass area consisted of perennial ryegrass (40%), fine fescues (30%), and Kentucky bluegrass (30%). Treatment plots were 6 ^D#x 8 ft. arranged in a RCB design and replicated three times with a 1 ft barrier around all replicates. Liquid formulations were applied by using a CO2 sprayer with four 8002VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 726 ml of water/48 ft2 or delivering 4.0 gal/1000 ft2. Granular formulations were applied with a hand-held shaker and mixed with fine top dressing sand to facilitate product distribution. Treatments were applied in the mid morning on 7 Jul under overcast skies. At that time, air temp was 74°F with RH = 80%. Soils were dry with temp at 1 and 2 inch depth of 64 and 62°F, respectively. Thatch, 0.5 inch thick was moist and water pH was 7.0. General soil conditions were as follows: soil textural class, loam; soil particle size analysis: sand, 34.6%; silt, 48.3%; clay, 17.2%; soil percent water content (percent by wt), 10.7; organic matter, 4.9%; CEC, 13.1; and soil pH, 5.2. The experimental area received 0.25 inch post treatment irrigation immediately after treatment. Throughout the summer and early fall the area was placed on a regular fairway irrigation schedule. Three one ft2 soil samples were removed from each replicate on 27 Sep and the total no. of NMC and JB grubs was recorded. Data was analyzed using Waller-Duncan k ratio (WD; P ≤ 0.05). The area selected for the experiment had been infested with a natural population of NMC and JB during the spring of 2005. An average of 13.0 white grubs was recorded from the driving range on 16 May 2005. Adult NMC flight was monitored in 2005 with a black light trap maintained at the Valentine Turfgrass Research Center. The first adult NMC was collected on 24 Jun. Peak NMC adult flight was 2-8 Jul and the last adult NMC was collected on 28 Jul. JB adults were observed flying late this season. Second instar, as well as third instar, grubs were present. Drought conditions delayed development of scarab grubs in 2005. All treatments provided significant suppression of JB and NMC grubs. Likewise, when scarab grub species were combined for analysis, all treatments provided significant control. No phytotoxicity was noted." |
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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):
Heller, P. R., D. Kline, and P. J. Ellis. 2006. Early July application of DPXE2Y45, Grubex, and Merit to preventively suppress scarab white grubs, 2005. Arthropod Manage. Tests. 31:p. G38. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/sub/trial/amt31/PDF/G/G38.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
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MSU catalog number: SB 951 .A1 I48 |
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