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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1989.tb01919.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Mowat, D. J.;
Shakeel, M. A. |
Author Affiliation: | Department of Argicultural Zoology, The Queens University, Belfast, Newforge Lane, Belfast |
Title: | The effect of some invertebrate species on persistence of white clover in ryegrass swards |
Source: | Grass and Forage Science. Vol. 44, No. 2, June 1989, p. 117-124. |
Publishing Information: | Oxford, Blackwell Scientific Publications |
Keywords: | TIC Keywords: Lolium; Lolium perenne; Chlorpyrifos
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Abstract/Contents: | "In two experiments established swards of perennial ryegrass and white clover, plots were treated with pesticides to control slugs, leatherjackets, weevil larvae and lucerne flea as selectively as possible. Other plots were treated to control all of these pests. Chlorpyrifos application in early summer (to control weevil larvae) and methiocarb pellets (to control slugs) also gave partial control of leatherjackets. Other effects on non-target species were considered to be unimportant, as pest status could not be attributed to the species. A high level of control of lucerne flea by methiocarb pellets, noted previously, was confirmed. At both sites combined treatment against insect pests and slugs produced large increases in clover content and yield over a 3-year period, in comparison with untreated plots, although clover tended to decline in all plots. At one site, where the clover content of untreated plots reached 33% at one stage, specialist clover herbivores such as weevils and lucerne flea were more common. Treatments directed against weevils and slugs gave the highest clover yields, and leatherjacket control may also have contributed, particularly when the population reached 0.9m ha-1 in the final year. At the other site, where the clover content was low (ultimately 0.1-1.6%), leatherjacket populations reached 2.1 m ha-1 and slug numbers were also relatively high. Control of these species contributed most to the relative increase in clover content and yield." |
Language: | English |
References: | 15 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Mowat, D. J., and M. A. Shakeel. 1989. The effect of some invertebrate species on persistence of white clover in ryegrass swards. Grass Forage Sci. 44(2):p. 117-124. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1989.tb01919.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 197 .B7 |
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