Estimating control threshold of two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) on chrysanthemum using presence-absence sampling method
To develop an easier control decision-making system, the control threshold of Tetranychus urticae on chrysanthemum was estimated in terms of proportion of leaves with adult females. The relationship between the proportion of leaves with mites and the mean number of mites per leaf fitted the Kono-Sug...
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| Veröffentlicht in: | Japanese Journal of Applied Entomology and Zoology 1998/02/25, Vol.42(1), pp.1-5 |
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| container_title | Japanese Journal of Applied Entomology and Zoology |
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| creator | Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan)) Sano, T Chiwaki, K Tanaka, F |
| description | To develop an easier control decision-making system, the control threshold of Tetranychus urticae on chrysanthemum was estimated in terms of proportion of leaves with adult females. The relationship between the proportion of leaves with mites and the mean number of mites per leaf fitted the Kono-Sugino model. The relationship between the injury level of leaves at harvest (30 July) and the mean number of mites per leaf at various census dates was described by the same model. The control threshold in terms of proportion of leaves with mites at various census dates could be estimated by combining the two relationships. For example, the control threshold when assuming the economic injury level to be 50% of the leaf undersurface to be spotted was 0.1%, 15.6%, and 81.8% for 5, 16, and 26 July, respectively. However, the control threshold at more than 1 month before harvest was difficult to establish because of the high marketable quality of chrysanthemum. Wald's sequential likelihood-ratio test seemed useful in control decision-making. |
| doi_str_mv | 10.1303/jjaez.42.1 |
| format | Article |
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(Okayama-ken. Agricultural Experiment Station, San-yo (Japan)) ; Sano, T ; Chiwaki, K ; Tanaka, F</creator><creatorcontrib>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan)) ; Sano, T ; Chiwaki, K ; Tanaka, F</creatorcontrib><description>To develop an easier control decision-making system, the control threshold of Tetranychus urticae on chrysanthemum was estimated in terms of proportion of leaves with adult females. The relationship between the proportion of leaves with mites and the mean number of mites per leaf fitted the Kono-Sugino model. The relationship between the injury level of leaves at harvest (30 July) and the mean number of mites per leaf at various census dates was described by the same model. The control threshold in terms of proportion of leaves with mites at various census dates could be estimated by combining the two relationships. For example, the control threshold when assuming the economic injury level to be 50% of the leaf undersurface to be spotted was 0.1%, 15.6%, and 81.8% for 5, 16, and 26 July, respectively. However, the control threshold at more than 1 month before harvest was difficult to establish because of the high marketable quality of chrysanthemum. Wald's sequential likelihood-ratio test seemed useful in control decision-making.</description><identifier>ISSN: 0021-4914</identifier><identifier>EISSN: 1347-6068</identifier><identifier>DOI: 10.1303/jjaez.42.1</identifier><language>jpn</language><publisher>JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY</publisher><subject>CHRYSANTHEMUM ; CONTROL DE PLAGAS ; control threshold ; ENCUESTAS SOBRE PLAGAS ; EVALUACION ; EVALUATION ; FORECASTING ; LUTTE ANTIRAVAGEUR ; MATHEMATICAL MODELS ; MODELE MATHEMATIQUE ; MODELOS MATEMATICOS ; PEST CONTROL ; PEST SURVEYS ; presence-absence sampling ; SURVEILLANCE DES DEPREDATEURS ; TECHNIQUE DE PREVISION ; TECNICAS DE PREDICCION ; TETRANYCHUS URTICAE</subject><ispartof>Japanese Journal of Applied Entomology and Zoology, 1998/02/25, Vol.42(1), pp.1-5</ispartof><rights>by The Japanese Society of Applied Entomology and Zoology</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c406t-1812e32800ec3c9a56ef2bd1d8625b8f4f15cf020a2d1baae2a8c14737b6bdb73</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1881,4022,27922,27923,27924</link.rule.ids></links><search><creatorcontrib>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan))</creatorcontrib><creatorcontrib>Sano, T</creatorcontrib><creatorcontrib>Chiwaki, K</creatorcontrib><creatorcontrib>Tanaka, F</creatorcontrib><title>Estimating control threshold of two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) on chrysanthemum using presence-absence sampling method</title><title>Japanese Journal of Applied Entomology and Zoology</title><description>To develop an easier control decision-making system, the control threshold of Tetranychus urticae on chrysanthemum was estimated in terms of proportion of leaves with adult females. The relationship between the proportion of leaves with mites and the mean number of mites per leaf fitted the Kono-Sugino model. The relationship between the injury level of leaves at harvest (30 July) and the mean number of mites per leaf at various census dates was described by the same model. The control threshold in terms of proportion of leaves with mites at various census dates could be estimated by combining the two relationships. For example, the control threshold when assuming the economic injury level to be 50% of the leaf undersurface to be spotted was 0.1%, 15.6%, and 81.8% for 5, 16, and 26 July, respectively. However, the control threshold at more than 1 month before harvest was difficult to establish because of the high marketable quality of chrysanthemum. Wald's sequential likelihood-ratio test seemed useful in control decision-making.</description><subject>CHRYSANTHEMUM</subject><subject>CONTROL DE PLAGAS</subject><subject>control threshold</subject><subject>ENCUESTAS SOBRE PLAGAS</subject><subject>EVALUACION</subject><subject>EVALUATION</subject><subject>FORECASTING</subject><subject>LUTTE ANTIRAVAGEUR</subject><subject>MATHEMATICAL MODELS</subject><subject>MODELE MATHEMATIQUE</subject><subject>MODELOS MATEMATICOS</subject><subject>PEST CONTROL</subject><subject>PEST SURVEYS</subject><subject>presence-absence sampling</subject><subject>SURVEILLANCE DES DEPREDATEURS</subject><subject>TECHNIQUE DE PREVISION</subject><subject>TECNICAS DE PREDICCION</subject><subject>TETRANYCHUS URTICAE</subject><issn>0021-4914</issn><issn>1347-6068</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNptkE-L1EAQxRtRcBj34l3oo4oZuzqdf96WYXXVBT2s51Dprkx6SNKhuwcZP40f1WSyrCBeqijq1XvUj7GXIHaQivT98Yj0a6fkDp6wDaSqSHKRl0_ZRggJiapAPWdXIdhGiKwSUJbVhv2-CdEOGO144NqN0buex85T6FxvuGt5_OmSMLkYyfAwWUOeDzbSO35P0eN41t0p8JOPViPxr053_PW1Rm8__BVYg_SGu5Hrzp8DjrGj4TTwU1hCpzmLRk0JNpfOAw5Tv2wGip0zL9izFvtAVw99y358vLnf3yZ33z593l_fJVqJPCZQgqRUlkKQTnWFWU6tbAyYMpdZU7aqhUy3QgqUBhpEklhqUEVaNHljmiLdsrerr_YuBE9tPfkZjD_XIOoFb33BWys5T1sm_hFrG2eIC0C0_f9P9uvJMUQ80KM7Luh6WqVQZcVFvhZ43OoOfU3j7PJqdWnR1XjwNtRfvkNVzX-rIsvSP8qppSY</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan))</creator><creator>Sano, T</creator><creator>Chiwaki, K</creator><creator>Tanaka, F</creator><general>JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1998</creationdate><title>Estimating control threshold of two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) on chrysanthemum using presence-absence sampling method</title><author>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan)) ; Sano, T ; Chiwaki, K ; Tanaka, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-1812e32800ec3c9a56ef2bd1d8625b8f4f15cf020a2d1baae2a8c14737b6bdb73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>1998</creationdate><topic>CHRYSANTHEMUM</topic><topic>CONTROL DE PLAGAS</topic><topic>control threshold</topic><topic>ENCUESTAS SOBRE PLAGAS</topic><topic>EVALUACION</topic><topic>EVALUATION</topic><topic>FORECASTING</topic><topic>LUTTE ANTIRAVAGEUR</topic><topic>MATHEMATICAL MODELS</topic><topic>MODELE MATHEMATIQUE</topic><topic>MODELOS MATEMATICOS</topic><topic>PEST CONTROL</topic><topic>PEST SURVEYS</topic><topic>presence-absence sampling</topic><topic>SURVEILLANCE DES DEPREDATEURS</topic><topic>TECHNIQUE DE PREVISION</topic><topic>TECNICAS DE PREDICCION</topic><topic>TETRANYCHUS URTICAE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan))</creatorcontrib><creatorcontrib>Sano, T</creatorcontrib><creatorcontrib>Chiwaki, K</creatorcontrib><creatorcontrib>Tanaka, F</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Japanese Journal of Applied Entomology and Zoology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kondo, A. (Okayama-ken. Agricultural Experiment Station, San-yo (Japan))</au><au>Sano, T</au><au>Chiwaki, K</au><au>Tanaka, F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Estimating control threshold of two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) on chrysanthemum using presence-absence sampling method</atitle><jtitle>Japanese Journal of Applied Entomology and Zoology</jtitle><date>1998</date><risdate>1998</risdate><volume>42</volume><issue>1</issue><spage>1</spage><epage>5</epage><pages>1-5</pages><artnum>1</artnum><issn>0021-4914</issn><eissn>1347-6068</eissn><abstract>To develop an easier control decision-making system, the control threshold of Tetranychus urticae on chrysanthemum was estimated in terms of proportion of leaves with adult females. The relationship between the proportion of leaves with mites and the mean number of mites per leaf fitted the Kono-Sugino model. The relationship between the injury level of leaves at harvest (30 July) and the mean number of mites per leaf at various census dates was described by the same model. The control threshold in terms of proportion of leaves with mites at various census dates could be estimated by combining the two relationships. For example, the control threshold when assuming the economic injury level to be 50% of the leaf undersurface to be spotted was 0.1%, 15.6%, and 81.8% for 5, 16, and 26 July, respectively. However, the control threshold at more than 1 month before harvest was difficult to establish because of the high marketable quality of chrysanthemum. Wald's sequential likelihood-ratio test seemed useful in control decision-making.</abstract><pub>JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY</pub><doi>10.1303/jjaez.42.1</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Japanese Journal of Applied Entomology and Zoology, 1998/02/25, Vol.42(1), pp.1-5 |
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| source | J-STAGE Free; EZB-FREE-00999 freely available EZB journals; AgriKnowledge（アグリナレッジ）AGROLib |
| subjects | CHRYSANTHEMUM CONTROL DE PLAGAS control threshold ENCUESTAS SOBRE PLAGAS EVALUACION EVALUATION FORECASTING LUTTE ANTIRAVAGEUR MATHEMATICAL MODELS MODELE MATHEMATIQUE MODELOS MATEMATICOS PEST CONTROL PEST SURVEYS presence-absence sampling SURVEILLANCE DES DEPREDATEURS TECHNIQUE DE PREVISION TECNICAS DE PREDICCION TETRANYCHUS URTICAE |
| title | Estimating control threshold of two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) on chrysanthemum using presence-absence sampling method |
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