Formulation Factors Affecting the Efficacy, Phytotoxicity and Rainfastness of Fenitrothion Microcapsules for Agricultural Use
Fenitrothion 20wt% microcapsules equal in mass median diameter (ca. 20μm) but different in wall thickness (T) were prepared and tested for efficacy against tobacco cutworms (Spodoptera litura), phytotoxicity to cabbage and rainfastness compared with a fenitrothion 50wt% emulsifiable concentrate. LC9...
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| Veröffentlicht in: | Journal of Pesticide Science 1991/11/20, Vol.16(4), pp.609-614 |
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| container_title | Journal of Pesticide Science |
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| creator | OHTSUBO, Toshiro TSUDA, Shigenori TAKEDA, Hisami TSUJI, Kozo |
| description | Fenitrothion 20wt% microcapsules equal in mass median diameter (ca. 20μm) but different in wall thickness (T) were prepared and tested for efficacy against tobacco cutworms (Spodoptera litura), phytotoxicity to cabbage and rainfastness compared with a fenitrothion 50wt% emulsifiable concentrate. LC95 values of the microcapsules increased with increasing in T and there was an optimum range in T to maintain the efficacy for a long period. A way of action of the microcapsules against tobacco cutworms was supposed to be breaking by the insects. The microcapsules was less phytotoxic than the emulsifiable concentrate. The thicker the wall of the microcapsules, the lower the phytotoxicity. Microcapsules with a thin wall excelled the emulsifiable concentrate in rainfastness both immediately after spray and after drying. |
| doi_str_mv | 10.1584/jpestics.16.609 |
| format | Article |
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LC95 values of the microcapsules increased with increasing in T and there was an optimum range in T to maintain the efficacy for a long period. A way of action of the microcapsules against tobacco cutworms was supposed to be breaking by the insects. The microcapsules was less phytotoxic than the emulsifiable concentrate. The thicker the wall of the microcapsules, the lower the phytotoxicity. Microcapsules with a thin wall excelled the emulsifiable concentrate in rainfastness both immediately after spray and after drying.</description><identifier>ISSN: 1348-589X</identifier><identifier>ISSN: 0385-1559</identifier><identifier>EISSN: 1349-0923</identifier><identifier>DOI: 10.1584/jpestics.16.609</identifier><identifier>CODEN: NNGADV</identifier><language>eng</language><publisher>Tokyo: Pesticide Science Society of Japan</publisher><subject>Biological and medical sciences ; Chemical control ; Control ; Fundamental and applied biological sciences. 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Microcapsules with a thin wall excelled the emulsifiable concentrate in rainfastness both immediately after spray and after drying.</description><subject>Biological and medical sciences</subject><subject>Chemical control</subject><subject>Control</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Invertebrates</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. 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Psychology</topic><topic>Invertebrates</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>OHTSUBO, Toshiro</creatorcontrib><creatorcontrib>TSUDA, Shigenori</creatorcontrib><creatorcontrib>TAKEDA, Hisami</creatorcontrib><creatorcontrib>TSUJI, Kozo</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Journal of Pesticide Science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>OHTSUBO, Toshiro</au><au>TSUDA, Shigenori</au><au>TAKEDA, Hisami</au><au>TSUJI, Kozo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Formulation Factors Affecting the Efficacy, Phytotoxicity and Rainfastness of Fenitrothion Microcapsules for Agricultural Use</atitle><jtitle>Journal of Pesticide Science</jtitle><addtitle>J. Pestic. Sci.</addtitle><date>1991-01-01</date><risdate>1991</risdate><volume>16</volume><issue>4</issue><spage>609</spage><epage>614</epage><pages>609-614</pages><issn>1348-589X</issn><issn>0385-1559</issn><eissn>1349-0923</eissn><coden>NNGADV</coden><abstract>Fenitrothion 20wt% microcapsules equal in mass median diameter (ca. 20μm) but different in wall thickness (T) were prepared and tested for efficacy against tobacco cutworms (Spodoptera litura), phytotoxicity to cabbage and rainfastness compared with a fenitrothion 50wt% emulsifiable concentrate. LC95 values of the microcapsules increased with increasing in T and there was an optimum range in T to maintain the efficacy for a long period. A way of action of the microcapsules against tobacco cutworms was supposed to be breaking by the insects. The microcapsules was less phytotoxic than the emulsifiable concentrate. The thicker the wall of the microcapsules, the lower the phytotoxicity. 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| identifier | ISSN: 1348-589X |
| ispartof | Journal of Pesticide Science, 1991/11/20, Vol.16(4), pp.609-614 |
| issn | 1348-589X 0385-1559 1349-0923 |
| language | eng |
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| source | J-STAGE Free |
| subjects | Biological and medical sciences Chemical control Control Fundamental and applied biological sciences. Psychology Invertebrates Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates |
| title | Formulation Factors Affecting the Efficacy, Phytotoxicity and Rainfastness of Fenitrothion Microcapsules for Agricultural Use |
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