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| Publication Type:
| Trade |
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| Author(s): | Dahlsson, Sven-Ove |
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| Author Affiliation: | Ansvarig Utgivare, Weibullsholms Grässektion, Landskrona, Sweden |
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| Title: | Fritflugan - skadegörare i gräsmattor: Resultat fr^Doan ett bekämpningsförsök |
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| Translated Title: | The frit fly - harmful to lawns |
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| Source: | Weibulls Gräs-Tips. Vol. 12-14, December 1971, p. 3-8. |
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| Publishing Information: | Landskrona, Sweden: W. Weibull AB |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Oscinella frit; Diazinon; Lawn turf; Dimethoate; Larva; Insecticide evaluation; Insecticide application; Spraying
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| Abstract/Contents: | "In 1970 and 1971 many lawn and turf areas were attacked by the frit fly (Oscinella frit L.) Mainly newly sown lawns were badly damaged, but also some older ones suffered from hard attacks. The eggs are laid on the leaf blade or sheath. When the larva comes it eats the main shoot near the base. The top of the shoot begins to yellow and dies very soon. You can find the white-yellowish larva near the base if you split the sheath carefully. The larva is 2-3 mm long. The fly is about 2 mm long and black. Damages in lawns have been recorded very seldom. Therefore insecticide application is not very well known. 1971 The Turfgrass Division at Weibullsholm carried out a test in order to elucidate that question. Five chemicals were tested, diazinon, fenitrotion, dimetoat, metoxyklor with about equal amounts of active ingredient. Diazinon and dimetoat were more effective than metoxyklor and fenitrotion. In the second sowing (June 9th) there was hardly any effect from the treatments of June 30th and July 19th. On the other hand the treatment of September 8th was very effective on the third generation of the fly. Preventive sprayings could not be recommended. Spraying should be done twice with an interval of 14 days as soon as damage appears. High volume is required (at least 600 l/ha). Further trials will be carried out in 1972 and published later on in Gräs-Tips." |
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| Language: | Swedish |
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| References: | 12 |
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| Note: | Pictures, b/w
Figures
Tables
Graphs
Abstract appears in English |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dahlsson, S.-O. 1971. Fritflugan - skadegörare i gräsmattor: Resultat fr^Doan ett bekämpningsförsök. (In Swedish) Weibulls Gräs-Tips. 12-14:p. 3-8. |
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MSU catalog number: SB 433 .A1 W4 |
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