Consumption and Utilization by the Mexican Bean Beetle of Soybean Plants Varying in Levels of Resistance12

Barney, William P.; Rock, G. C.

doi:10.1093/jee/68.4.497

Cited by 20 publications

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“…Our findings are consistent with many previous demonstrations that soybean genotypes vary in constitutive resistance (e.g., Van Duyn et al 1971;Barney and Rock 1975;Kraemer and Rangappa et al 1988;Kraemer et al 1994). Our results for the constitutive resistance of particular varieties are largely consistent with previous ratings.…”

Section: Discussionsupporting

confidence: 93%

Induced resistance to Mexican bean beetles in soybean: variation among genotypes and lack of correlation with constitutive resistance

et al. 2000

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Fourteen genotypes (varieties) of soybean (Glycine max) were screened for levels of induced resistance to Mexican bean beetle (Epilachna varivestis) damage, and a subset of 6 of those varieties was screened for levels of constitutive resistance to Mexican bean beetles. Experiments were carried out in the greenhouse, with damage imposed by Mexican bean beetle larvae, and levels of resistance measured by a choice test bioassay with adult beetles. We found significant variation among soybean genotypes in levels of both induced and constitutive resistance. We found no significant correlation between levels of induced and constitutive resistance measured in the same genotypes. We compare these results to past work on resistance in the soybean-Mexican bean beetle system, consider the implications of variation in both types of resistance for plant-herbivore interactions in agricultural and natural systems, and discuss the relationship between induced and constitutive resistance.

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Section: Discussionsupporting

confidence: 93%

Induced resistance to Mexican bean beetles in soybean: variation among genotypes and lack of correlation with constitutive resistance

et al. 2000

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“…The soybean looper (SBL), Pseudoplusia includens (Lepidoptera:Noctuidae), and the Mexican bean beetle (MBB), Epilachna varivestis (Coleoptera:Coccinellidae), are insect pests of significance in certain soybean production areas of the USA. The constitutive resistance of soybean to SBL and MBB has been documented in feeding preference (Kogan, 1972a) and food intake and utilization studies (Kogan, 1972b;Kogan & Cope, 1974;Barney & Rock, 1975), that used relatively resistant as well as susceptible soybean plants (soybean cultivars or breeding lines). MBB is an oligophagous insect and its host range is restricted within the plant family Leguminosae (Turnipseed & Shepard, 1980).…”

Section: Introductionmentioning

confidence: 99%

Influence of induced resistance in soybean on the development and nutrition of the soybean looper and the Mexican bean beetle

Lin

Kogan

1990

Entomologia Exp Applicata

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Standard gravimetric technique was used to assess the effect of induced resistance in soybean on the consumption and utilization of food by the Mexican bean beetle (MBB), Epilachna varivestis, and the soybean looper (SBL), Pseudoplusia includens. Induced resistance had significant retarding effects on the development and growth of both SBL and MBB. SBL fed leaves of previously injured soybean plants had a 8.5% longer developmental time through the entire larval stage and a 10.4% lower pupal weight than larvae fed leaves from uninjured plants. MBB fed on leaves from previously injured plants through the first three instars had a 9.1 % longer developmental time and a 16.5% lower final weight than those fed on leaves from uninjured plants. Induced resistance showed no significant effect on total food consumed by either SBL or MBB. Nutritional indices including relative consumption rate (RCR), relative growth rate (RGR), efficiency of conversion of ingested food (ECI), approximate digestibility (AD), and efficiency of conversion of digested food (ECD) were calculated on dry weight measurements. In general, induced resistance had greater impacts on the performance of MBB than on that of SBL. Résumé Influence de la résistance induite chez le soja sur le développement et l'alimentation de Pseudoplusia includens et Epilachna varivestis Une technique gravimétrique uniforme a été utilisée pour mesurer l'effet de la résistance induite du soja et la consommation et l'utilisation d'aliments par E. varivestis (Coléop.: Coccinellidae) et P. includens (Lepid.: Noctuidae). La résistance induite a significativement retardé la croissance et le développement des 2 insectes. La consommation de feuilles déjà abîmées a prolongé de 8.5% la durée du développement de P. includens et a réduit de 10.4% le poids des chrysalides. La consommation de feuilles de soja abîmées pendant les 3 premiers stades d'E. varivestis a prolongé le développement de 9.1% et a réduit de 16.5% le poids des nymphes. La résistance induite n'a pas provoqué une modification significative de la quantité de feuilles de soja abîmées chez les 2 insectes. Les indices de nutrition, comprenant le taux de consommation relative (RCR), le taux de croissance relative (RGR), l'efficacité de transformation de l'aliment ingéré (ECI), la digestibilité approchée (AD) et l'efficacité de conversion de l'aliment digéré (ECD), ont été calculés à partir des poids secs. En général, la résistance induite a eu des effets plus nets sur les performances d'E. varivestis que de P. includens.

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“…of 20% when feeding on Eucalyptus sp. leaves, and Barney & Rock (1975) showed E.C.I. 's of 5%--22% for Mexican bean beetle larvae feeding on leaves of resistant and susceptible soybeans.…”

Section: Resultsmentioning

confidence: 95%

“…Hoekstra & Beenakkers, 1976;Bailey & Mukerji, 1976) and Coleoptera (e.g. Carne, 1966;Latheef & Harcourt, 1972;Kogan, 1973;Barney & Rock, 1975). In contrast, little research has been undertaken on the Scarabaeidae where the soil inhabiting larvae are primarily plant root feeders.…”

mentioning

confidence: 99%

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

King

Mercer

Meekings

1981

Entomologia Exp Applicata

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The consumption, utilization and growth of third‐instar larvae of black beetle, Heteronychus arator (F.) feeding on roots of ryegrass (Lolium perenne), paspalum (Paspalum ***dilatatum) and white clover (Trifolium repens) were studied. Consumption was greater on the grasses than on white clover when assessed by gravimetric methods, Larvae had a higher growth rate on the grasses. Utilization of the roots of the three species was similar indicating that poor growth on white clover is the result of low consumption probably induced by the presence of feeding deterrents in the roots. ZUSAMMENFASSUNG DIE OEKOLOGIE VON HETERONYCHUS ARATOR (COLEOPTERA, SCARABAEIDAE) EINFLUSS DER PFLANZENART AUF FUTTERAUFNAHME, FUTTER VER WERTUNG UND WACHSTUM DER LARVEN Die Futteraufnahme, die Futterverwertung und das Wachstum von Drittstadiumlarven von H. arator beim Fressen von Wurzeln von Paspalum dilatatum, Raygras (Lolium perenne) und Weissklee (Trifolium repens) wurden gravimetrisch gemessen. Der durchschnittliche Futterverzehrindex auf Gräsern war 0.65 mg/mg Larve/Woche verglichen mit 0.18 auf Weissklee. Die relative Wachstumsrate auf Paspalum und Raygras war 0.158 und 0.124 mg/mg Larve/Woche verglichen mit 0.043 auf Weissklee, was den geringen Verzehr an Weisskleewurzel widerspiegelt. Die Verwertung der gefressenen Wurzel war 22%, 18% und 24% für Paspalum, Raygras und Weissklee. Das Fehlen gesicherter Unterschiede in der Futterverwertung der drei Pflanzenarten deutet darauf hin, dass die geringe Wachstumsrate auf Weissklee bloss durch geringe Futteraufnahme verursacht ist. Es wurde gezeigt, dass in Weisskleewurzel Frasinhibitoren für H. arator vorhanden sind. Die erhaltenen Schätzungen für Futteraufnahme durch Scarabaeiden sind die besten Daten für wurzelfressende Arten und liefern eine Basis, um den Einfluss der Weidepflanzen auf H. arator Populationen zu verstehen.

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Consumption and Utilization by the Mexican Bean Beetle of Soybean Plants Varying in Levels of Resistance12

Cited by 20 publications

References 0 publications

Induced resistance to Mexican bean beetles in soybean: variation among genotypes and lack of correlation with constitutive resistance

Induced resistance to Mexican bean beetles in soybean: variation among genotypes and lack of correlation with constitutive resistance

Influence of induced resistance in soybean on the development and nutrition of the soybean looper and the Mexican bean beetle

ECOLOGY OF BLACK BEETLE HETERONYCHUS ARATOR, INFLUENCE OF PLANT SPECIES ON LARVAL CONSUMPTION, UTILIZATION AND GROWTH

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