| |
| Publication Type:
| Report |
|---|
| Author(s): | Baxendale, F. P.;
Paustian, J. W.;
Wit, L. A. |
|---|
| Author Affiliation: | Baxendale and Paustian: Department of Entomology, University of Nebraska, Lincoln, Nebraska; and Wit: Department of Horticulture, University of Nebraska, Lincoln, Nebraska |
|---|
| Title: | Sod Webworm Control in Bentgrass, 1989 |
|---|
| Source: | Insecticide and Acaricide Tests. Vol. 15, 1990, p. 316. |
|---|
| Publishing Information: | Lanham, MD: Entomological Society of America |
|---|
| Keywords: | TIC Keywords: Agrostis; Crambinae; Detergents
|
|---|
| Abstract/Contents: | "The test was conducted on bentgrass plots located at the University of Nebraska Agricultural Research and Development Center near Mead, NB. Insecticides were applied on 14 Jul to 6 X 8 ft plots arranged in a randomized complete block design and replicated 4 times. The predominant grass species was bentgrass (99%) which was maintained at a mowing height of 5/32 inch. There was no perceptible thatch accumulation. Field conditions at the time of application were as follows: air temperature, 74oF; soil temperature (4-inch depth), 79oF; soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.2-6.6; water pH, 6.7; soil moisture was well below field capacity. Liquid formulations were applied with a CO2 sprayer using a LF-4 nozzle at 24 psi and delivering 3 gal spray/1000 ft2. A precalibrated Gandy 24H12 spreader was used to apply granular formulations. The test area received 0.05 inch of irrigated water 12 hr after treatment. An additional 0.15 and 0.35 inches of irrigated water were applied during the 3-DAT and 7-DAT periods, respectively, and 1.77 inches of rain fell during the 3-DAT period. Product efficacy was evaluted 3 DAT and 7 Dat (17 Jul and 21 Jul) by applying 0.25 cup of liquid detergent/gallon of water over two 6 ft2 areas in each plot and recording the number of sod webworms that emerged form the turf after 15 min. Opposite corner of plots were sampled on successive evaluation dates. Pretreatment counts indicated an average of 12 webworms/6 ft2 in the test area. All treatments resulted in statistically signifiant reductions in sod webworm numbers at both 3 and 7 DAT. By 7 DAT, all products provided greater than 80% reduction. Fewer sod webworms were detected in the check plots at 3 DAT, most likely because of unseasonably cool (67oF) temperatures at the time of evaluation. No phytotoxicity resulted from any of the insecticide treatments. However, the detergent drench caused a slight, temporary yellowing of the bentgrass." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baxendale, F. P., J. W. Paustian, and L. A. Wit. 1990. Sod Webworm Control in Bentgrass, 1989. Arthropod Manage. Tests. 15:p. 316. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=18164 |
| If there are problems with this record, send us feedback about record 18164. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 951 .A1 I48 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
