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| Publication Type:
| Refereed |
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| Author(s): | Yoshida, M. |
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| Author Affiliation: | Professor Emeritus of Shizuoka University, Shizuoka-shi, Japan |
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| Title: | Problems and perspective of destructive turfgrass insects in Japan |
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| Section: | Keynote addresses
Other records with the "Keynote addresses" Section
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| Volume Editors: | Takatoh, Hiroshi |
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| Meeting Info.: | Tokyo, Japan: July 31-August 5, 1989 |
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| Source: | Proceedings of the Sixth International Turfgrass Research Conference. 1989, p. 61-68. |
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| Publishing Information: | Tokyo, Japan: Japanese Society of Turfgrass Science and the International Turfgrass Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Insects; Distribution; Control; Grubs; Parapediasia teterrella; Antonina graminis; Sphenophorus veratus vestitus
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| Abstract/Contents: | "(1) Destructive turfgrass insects in Japan are divided broadly into two categories: that of insects common to Japan that have become destructive along with the increase in turfgrass area and that of parasitic invading destructive insects that are thought to have accompanied the importation of turfgrass. As of 1988, over 43 types of destructive insects belonging to the Coleoptera, Lepidoptera, Hemiptera, Diptera, Orthoptera and Nematode types have been discovered and there is a trend of further increase through changes in agricultural species and methods of cultivation. (2) Scarabs that attack turfgrass are divided broadly into two categories by adult insects and food habit: (A) Adult insects that do not need maturation feeding or ingest young grass or pollen of turfgrass and larvae that turn into destructive turfgrass insects, (B) Adult insects that ingest plants other than turfgrass and larva that turn into destructive turfgrass insects. Furthermore, over 22 kinds of beetles were distinguished by food plants and chlorology of adult insect activity. The main destructive turfgrass insects are Scarabs (grass grubs) that belong to category (A), but adult insects belong to category (B) that require maturation feeding polyphagous types are also becoming important. (3) As of 1988 parasitic destructive insects that have been discovered are Parapediasia teterrella (Zinken) (Bluegrass webworm), Antonina graminis Maskell (Rhodesgrass Mealybug), Sphenophorus venatus vestitusChittenden (Hunting billbug) and Meloidogyne graminis (Sledget Golden) Whitehead (Grass root-knot nematode) which has not been reported yet in Japan. All of these are thought to have entered into Japan when Tifton grass was imported from the United Stated in 1964. Presently, they have become the main destructive insects and control is being carried out. (4) In the 20 years since the damage done by Bluegrass webworms to turfgrass was discovered in 1968 the extent of the damage done by this insect is occurring south west of the area bounded by Ibaragi Prefecture of the Pacific Ocean side and Ishikawa Prefecture of the Japan Sea side (excluding golf courses above an altitude of 500m). (5) Damage done by the Rhodesgrass scale can be seen in the Kyushu and Shikoku regions and the south coast of Kii Peninsula. The survey on the damage done by the Hunting billbug in Shikoku and Chugoku regions has not progressed sufficiently, but significant damage can be seen in the Kyushu and Kinki regions, and in the Kanto region damage is also occurring in Kanagawa and Chiba Prefectures. (6) The geographical distribution of the land which is damaged by the 3 kinds parasitic insects are roughly the same. In the United States these destructive insects inhabit the warm climes of the south and therefore it is thought that their outbreak is limited according to the temperature of the areas they inhabit. (7) Control of Scarabs that damage turfgrass concentrates on control of adult insects. Control of the larval stage is carried out as a secondary measure. To control Scarabs belonging to category (B) it is necessary either not to grow the food plants of adult insects or control through pesticides in the development period of adult insects. The control of Moth is carried out by surveying the development stage of adult insects and then using pesticides at the young larval period. It is advisable to use pesticides that are registered for turfgrass use. (8) Using slides, I shall explain the essential points with regard to the bionomics, seasonal prevalence of occurrence and control of principal destructive turfgrass insects." |
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| Language: | English |
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| References: | 13 |
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| Note: | Tables
Graphs
"Keynote address 10" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yoshida, M. 1989. Problems and perspective of destructive turfgrass insects in Japan. Int. Turfgrass Soc. Res. J. p. 61-68. |
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MSU catalog number: SB 433 .I52 no.6 |
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