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| Web URL(s): | https://academic.oup.com/amt/article/25/1/G30/111151/FORMULATION-AND-TIMING-EFFECTS-OF-MACH-2-ON-MIXED
Last checked: 02/17/2017
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Notes: Guide Page |
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| Publication Type:
| Report |
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| Author(s): | Heller, P. R.;
Walker, R.;
Rowan, M. |
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| Author Affiliation: | Department of Entomology, Pennsylvania State University, University Park, PA |
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| Title: | Formulation and timing effects of Mach-2 on mixed populations of white grubs, 1999. |
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| Section: | Reports: Ornamentals
Other records with the "Reports: Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 25, 2000, p. 365-366. |
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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: Insecticide evaluation; Pest density; Application rates; Grub control; Poa pratensis; Poa annua; Popillia japonica; Cyclocephala borealis; Formulations; Application timing; Halofenozide; Insect control; Insecticides
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| Abstract/Contents: | "This study was undertaken to determine extended residual control of a mixed white grub population on a turfgrass area maintained at Penn State's Valentine Turfgrass Research Center at University Park. The turfgrass area consisted primarily of Kentucky bluegrass (25%) and annual buegrass (75%). Treatment plots were 9 x 6 ft, arranged in a RCB design and replicated three times. Liquid formulations were applied by using a CO₂ sprayer with 4 8002VS TeeJet nozzles mounted on a 6ft boom, operating at 28 psi, and applied in 817 ml of water/54ft² or delivering 4.0 gal/1000ft². Granular formulations were applied with a hand-held shaker and mixed with fine top dressing sand to facilitate product distribution. At the first treatment time (4 Jun), the following soil and environmental conditions existed: air temp, 59°F; soil temp at 1 inch depth, 60°F; soil temp at 2 inch, 58°F; RH, 72%; amt of thatch, 0.5-1.0 inch; soil percent water content (percent by wt), 12.3; water pH, 7.0; application time, early-morning; and clear skies. The experimental area was not irrigated after the treatment. At the second treatment time (31 Aug), the following soil and environmental conditions existed: air temp, 56°F; soil temp at 1 inch depth, 62°F; soil temp at 2 inch, 60°F; RH, 86%; amt of thatch, 0.5-1.0 inch; soil percent water content (percent by wt), 20.3; water pH, 7.0; application time, early-morning; and clear skies. The experimental area was not irrigated after the treatment. General soil conditions were as follows; soil textural class, silt loam; soil particle size analysis: sand, 25.0%; silt, 59.7%; clay, 15.2%: organic matter, 4.7%; and soil pH, 7.0 Three white PVC cylinders (8 inches x 6 inches height) were placed in each replicate and 25 JB adults were realeased inside each cylinder on 6 Jul (60% females) and 12 Jul (60% females). Adult beetles were maintained inside by covering individual cylinders with white shade screen. The latter procedure allowed for oviposition by adult female beetles. All PVC cylinders were removed on 19 Jul. Post-treatment counts were made on 24 Sep. Three ft² sod samples were taken from each replicate. Each ft² sample was centered on turfgrass located within the 8 inch PVC cylinder infestation area. The total no. of JB and NMC grubs/ft² was recorded. Adult JB's were first observed flying on 20 Jun in Centre County. The stage of grubs sampled on 26 Aug included second instar JB and NMC grubs, while those sampled on 15 Sep were third instar JB and NMC grubs. Five treatments provided significant reduction of JB grubs while three treatments provided significant control of NMC on 24 Sep; however the F Probability (F) value was 0.11 or 89% for NMC. Severe drought conditions may have influenced adult beetle and white grub survival in 1999. 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., R. Walker, and M. Rowan. 2000. Formulation and timing effects of Mach-2 on mixed populations of white grubs, 1999.. Arthropod Manage. Tests. 25:p. 365-366. |
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| Web URL(s):
https://academic.oup.com/amt/article/25/1/G30/111151/FORMULATION-AND-TIMING-EFFECTS-OF-MACH-2-ON-MIXED
Last checked: 02/17/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Guide Page |
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MSU catalog number: SB 951 .A1 I48 |
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