Chlorpyrifos effect on armored scale (Homoptera: Diaspididae) populations in San Joaquin Valley citrus
Portions of three citrus orchards infested with California red scale, Aonidiella aurantii (Maskell), and with yellow scale, A. citrina Coquillett), were sprayed either with a commercial rate of chlorpyrifos or left unsprayed. The three orchards included a chlorpyrifos-susceptible A. aurantii populat...
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| Veröffentlicht in: | Journal of economic entomology 1994-08, Vol.87 (4), p.1046-1057 |
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| container_title | Journal of economic entomology |
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| creator | Vehrs, S.L.C Grafton-Cardwell, E.E |
| description | Portions of three citrus orchards infested with California red scale, Aonidiella aurantii (Maskell), and with yellow scale, A. citrina Coquillett), were sprayed either with a commercial rate of chlorpyrifos or left unsprayed. The three orchards included a chlorpyrifos-susceptible A. aurantii population, a chlorpyrifos-resistant A. aurantii population, and a chlorpyrifos-resistant A. citrina population. The levels of efficacy of chlorpyrifos in the field trials confirmed the levels of susceptibility of scales in the laboratory bioassays. Susceptible A. aurantii were killed for 60 d after treatment with one application of properly timed chlorpyrifos, Chlorpyrifos-resistant A. aurantii were held at pretreatment levels for 30 d but increased in numbers similar to those of the unsprayed control plots by 60 d after treatment. There was no significant difference in percentage of parasitism between the sprayed and unsprayed treatments. Resistant A. citrina were unaffected by the chlorpyrifos treatment, both in the number of scales per plant structure as well as in the population structure. The percentage of parasitism was significantly greater in the unsprayed compared with the chlorpyrifos treatment in this population |
| doi_str_mv | 10.1093/jee/87.4.1046 |
| format | Article |
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The three orchards included a chlorpyrifos-susceptible A. aurantii population, a chlorpyrifos-resistant A. aurantii population, and a chlorpyrifos-resistant A. citrina population. The levels of efficacy of chlorpyrifos in the field trials confirmed the levels of susceptibility of scales in the laboratory bioassays. Susceptible A. aurantii were killed for 60 d after treatment with one application of properly timed chlorpyrifos, Chlorpyrifos-resistant A. aurantii were held at pretreatment levels for 30 d but increased in numbers similar to those of the unsprayed control plots by 60 d after treatment. There was no significant difference in percentage of parasitism between the sprayed and unsprayed treatments. Resistant A. citrina were unaffected by the chlorpyrifos treatment, both in the number of scales per plant structure as well as in the population structure. The percentage of parasitism was significantly greater in the unsprayed compared with the chlorpyrifos treatment in this population</description><identifier>ISSN: 0022-0493</identifier><identifier>EISSN: 1938-291X</identifier><identifier>DOI: 10.1093/jee/87.4.1046</identifier><identifier>CODEN: JEENAI</identifier><language>eng</language><publisher>Lanham, MD: Entomological Society of America</publisher><subject>AONIDIELLA AURANTII ; Biological and medical sciences ; CALIFORNIA ; CALIFORNIE ; Chemical control ; CHLORPYRIFOS ; CITRUS SINENSIS ; CLORPIRIFOS ; Control ; Diaspididae ; Fundamental and applied biological sciences. Psychology ; Homoptera ; INSECTICIDAS ; INSECTICIDE ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates ; RESISTANCE AUX PRODUITS CHIMIQUES ; RESISTENCIA QUIMICA</subject><ispartof>Journal of economic entomology, 1994-08, Vol.87 (4), p.1046-1057</ispartof><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c314t-b1aa09681f426681ac6c6986366604e72bdfce3d7c86716b0b1d0341b3c47bcd3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3298788$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Vehrs, S.L.C</creatorcontrib><creatorcontrib>Grafton-Cardwell, E.E</creatorcontrib><title>Chlorpyrifos effect on armored scale (Homoptera: Diaspididae) populations in San Joaquin Valley citrus</title><title>Journal of economic entomology</title><description>Portions of three citrus orchards infested with California red scale, Aonidiella aurantii (Maskell), and with yellow scale, A. citrina Coquillett), were sprayed either with a commercial rate of chlorpyrifos or left unsprayed. The three orchards included a chlorpyrifos-susceptible A. aurantii population, a chlorpyrifos-resistant A. aurantii population, and a chlorpyrifos-resistant A. citrina population. The levels of efficacy of chlorpyrifos in the field trials confirmed the levels of susceptibility of scales in the laboratory bioassays. Susceptible A. aurantii were killed for 60 d after treatment with one application of properly timed chlorpyrifos, Chlorpyrifos-resistant A. aurantii were held at pretreatment levels for 30 d but increased in numbers similar to those of the unsprayed control plots by 60 d after treatment. There was no significant difference in percentage of parasitism between the sprayed and unsprayed treatments. Resistant A. citrina were unaffected by the chlorpyrifos treatment, both in the number of scales per plant structure as well as in the population structure. The percentage of parasitism was significantly greater in the unsprayed compared with the chlorpyrifos treatment in this population</description><subject>AONIDIELLA AURANTII</subject><subject>Biological and medical sciences</subject><subject>CALIFORNIA</subject><subject>CALIFORNIE</subject><subject>Chemical control</subject><subject>CHLORPYRIFOS</subject><subject>CITRUS SINENSIS</subject><subject>CLORPIRIFOS</subject><subject>Control</subject><subject>Diaspididae</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Homoptera</subject><subject>INSECTICIDAS</subject><subject>INSECTICIDE</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>RESISTANCE AUX PRODUITS CHIMIQUES</subject><subject>RESISTENCIA QUIMICA</subject><issn>0022-0493</issn><issn>1938-291X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNo9kD1PwzAURS0EEqUwsjB5QAiGtHbsOg4bKh8FVWIoRWzWi2ODqyRO7WTovydVEdN9Tzr3DgehS0omlORsujFmKrMJHz4ujtCI5kwmaU6_jtGIkDRNCM_ZKTqLcUMIFSklI2TnP5UP7S446yM21hrdYd9gCLUPpsRRQ2Xw7cLXvu1MgHv86CC2rnQlmDvc-ravoHO-idg1eAUNfvOw7Yf7E6rK7LB2XejjOTqxUEVz8ZdjtH5--pgvkuX7y-v8YZloRnmXFBSA5EJSy1MxBGihRS4FE0IQbrK0KK02rMy0FBkVBSloSRinBdM8K3TJxujmsNsGv-1N7FTtojZVBY3xfVRUzCQVjAxgcgB18DEGY1UbXA1hpyhRe5tqsKlkprja2xz4679h2CuxARrt4n-JpbnMpBywqwNmwSv4DgOyXuUzms54xn4BH1t95A</recordid><startdate>19940801</startdate><enddate>19940801</enddate><creator>Vehrs, S.L.C</creator><creator>Grafton-Cardwell, E.E</creator><general>Entomological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SS</scope></search><sort><creationdate>19940801</creationdate><title>Chlorpyrifos effect on armored scale (Homoptera: Diaspididae) populations in San Joaquin Valley citrus</title><author>Vehrs, S.L.C ; Grafton-Cardwell, E.E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c314t-b1aa09681f426681ac6c6986366604e72bdfce3d7c86716b0b1d0341b3c47bcd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>AONIDIELLA AURANTII</topic><topic>Biological and medical sciences</topic><topic>CALIFORNIA</topic><topic>CALIFORNIE</topic><topic>Chemical control</topic><topic>CHLORPYRIFOS</topic><topic>CITRUS SINENSIS</topic><topic>CLORPIRIFOS</topic><topic>Control</topic><topic>Diaspididae</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Homoptera</topic><topic>INSECTICIDAS</topic><topic>INSECTICIDE</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>RESISTANCE AUX PRODUITS CHIMIQUES</topic><topic>RESISTENCIA QUIMICA</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vehrs, S.L.C</creatorcontrib><creatorcontrib>Grafton-Cardwell, E.E</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Entomology Abstracts (Full archive)</collection><jtitle>Journal of economic entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vehrs, S.L.C</au><au>Grafton-Cardwell, E.E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chlorpyrifos effect on armored scale (Homoptera: Diaspididae) populations in San Joaquin Valley citrus</atitle><jtitle>Journal of economic entomology</jtitle><date>1994-08-01</date><risdate>1994</risdate><volume>87</volume><issue>4</issue><spage>1046</spage><epage>1057</epage><pages>1046-1057</pages><issn>0022-0493</issn><eissn>1938-291X</eissn><coden>JEENAI</coden><abstract>Portions of three citrus orchards infested with California red scale, Aonidiella aurantii (Maskell), and with yellow scale, A. citrina Coquillett), were sprayed either with a commercial rate of chlorpyrifos or left unsprayed. The three orchards included a chlorpyrifos-susceptible A. aurantii population, a chlorpyrifos-resistant A. aurantii population, and a chlorpyrifos-resistant A. citrina population. The levels of efficacy of chlorpyrifos in the field trials confirmed the levels of susceptibility of scales in the laboratory bioassays. Susceptible A. aurantii were killed for 60 d after treatment with one application of properly timed chlorpyrifos, Chlorpyrifos-resistant A. aurantii were held at pretreatment levels for 30 d but increased in numbers similar to those of the unsprayed control plots by 60 d after treatment. There was no significant difference in percentage of parasitism between the sprayed and unsprayed treatments. Resistant A. citrina were unaffected by the chlorpyrifos treatment, both in the number of scales per plant structure as well as in the population structure. The percentage of parasitism was significantly greater in the unsprayed compared with the chlorpyrifos treatment in this population</abstract><cop>Lanham, MD</cop><pub>Entomological Society of America</pub><doi>10.1093/jee/87.4.1046</doi><tpages>12</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-0493 |
| ispartof | Journal of economic entomology, 1994-08, Vol.87 (4), p.1046-1057 |
| issn | 0022-0493 1938-291X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_16581630 |
| source | Oxford University Press Journals Digital Archive legacy |
| subjects | AONIDIELLA AURANTII Biological and medical sciences CALIFORNIA CALIFORNIE Chemical control CHLORPYRIFOS CITRUS SINENSIS CLORPIRIFOS Control Diaspididae Fundamental and applied biological sciences. Psychology Homoptera INSECTICIDAS INSECTICIDE Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates RESISTANCE AUX PRODUITS CHIMIQUES RESISTENCIA QUIMICA |
| title | Chlorpyrifos effect on armored scale (Homoptera: Diaspididae) populations in San Joaquin Valley citrus |
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