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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Lucas, M. D.;
Montgomery, D. P.;
Brede, A. D. |
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| Author Affiliation: | Oklahoma State University |
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| Title: | Mower-Deck Injection of Pesticides in Turf. |
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| Source: | Southern Weed Science Society Proceedings. Vol. 39, January 1986, p. 128. |
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| Publishing Information: | Nashville, TN: Southern Weed Science Society. |
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| Keywords: | TIC Keywords: Pesticides
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| Abstract/Contents: | "Four field experiments have been conducted since the summer of 1984 to develop a mower injection system which would duplicate the effects of a conventional spray system. A mower injection system involves injecting a pesticide directly into a mower deck during its operation and using the mower blade to distribute the pesticide. The initial experiment tested arrangement and number of injection points on an unpressurized injection system. Rhodamine B dye was used to replace the pesticide making the treated area highly visible. Two injection points, postioned at ten and two o'clock on the mower deck, were found to produce 75 to 85% coverage of the plot. Two field experiments were conducted in 1985 to compare a pressurized mower injection system to a conventional spray system. A 0.56 kg ha rate of paraquat (Paraquat+Plus) was used to determine the distribution patterns of the various systems. The pressurized system was accomplished by mounting a CO2-powered single nozzle boom to the mower deck at a seven o'clock position. The flat fan (SS11002) nozzle was mounted to spray a pattern parallel to the ground. Also in the 1985 experiments the effect of grass heights was tested. Both low (1.5 inch) and high (2.5 inch) grass heights did not effect any of the spray systems. Test plots were rated one and two weeks following treatment for percent kill and uniformity. At the one week rating the percent kill of the pressurized injection system was equal to that of the conventional, but was significantly less at the second rating. A uniformity rating has shown all systems equal at the one week rating, however, the conventional system did show significantly better uniformity than both injection systems at the second rating. Using these results another field experiment was conducted where 0.56 and 1.12 kg ha-1 treatments of mefluidide (Embark) were applied using both a conventional system and an unpressurized mower injection system. Conventional spray treatments produced significantly more growth reduction and seedhead inhibition of the bermudagrass than the mower injection system. The mower injection treatment did show activity but it was erratic. The mower injection system does seem to have great potential but the present system needs refinement." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lucas, M. D., D. P. Montgomery, and A. D. Brede. 1986. Mower-Deck Injection of Pesticides in Turf.. South. Weed Sci. Soc. Proc. 39:p. 128. |
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MSU catalog number: SB 611 .S6 |
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