Sampling Velvetbean Caterpillar on Soybean

Herzog, D. C.; Todd, J. W.

doi:10.1007/978-1-4612-9998-1_6

Cited by 29 publications

(21 citation statements)

References 26 publications

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“…The caterpillars of this species feed upon a variety of legumes, and they are important defoliators of soybean in the western hemisphere (Turnipseed & Kogan, 1976;Herzog & Todd, 1980). The caterpillars of this species feed upon a variety of legumes, and they are important defoliators of soybean in the western hemisphere (Turnipseed & Kogan, 1976;Herzog & Todd, 1980).…”

Section: Introductionmentioning

confidence: 99%

Compensatory increases in food consumption and utilization efficiencies by velvetbean caterpillars mitigate impact of diluted diets on growth

Slansky

Wheeler

1989

Entomologia Exp Applicata

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Fresh weight (fw) food consumption by caterpillars of Anticarsia gemmatalis Htibner (Lepidoptera: Noctuidae) increased almost 2-fold as the nutrients in an artificial diet were increasingly diluted with water (diets contained 65, 79, 86 or 897o fw water). Nonetheless, dry weight (dw) relative consumption rate (RCR) declined with diet dilution. The efficiency at which the consumed food is digested and assimilated (approximate digestibility, AD) increased on the 3 diluted diets, and the efficiency at which digested food is converted to biomass (ECD) increased on the 79 and 86~o fw diets. As a consequence, dw gained and relative growth rate (RGR), which is the product of RCR x AD x ECD, on the 797o fw diet were similar to those on the 65 ~o fw diet, but they declined on the more diluted diets. Relative nitrogen consumption rate also declined with dietary dilution, but this was compensated by an increase in nitrogen utilization efficiency such that the product of these, relative nitrogen accumulation rate, was similar on all four diets. Insect lipid content declined from 327o on the undiluted diet to 137O dw on the most diluted diet, and was primarily responsible for the decline in RGR. The increases in fw consumption and AD, while not preventing a decline in RGR on the two most diluted diets, mitigated the impact of dietary dilution (e.g., without these increases, RGR on the most diluted diet would have been only 43 7O of that attained). These results indicate that the consumption and utilization of food are dynamic processes, and that caterpillars ofA. gemmatalis, like many other insects, exhibit compensatory responses to changes in dietary quality.

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Section: Introductionmentioning

confidence: 99%

Compensatory increases in food consumption and utilization efficiencies by velvetbean caterpillars mitigate impact of diluted diets on growth

Slansky

Wheeler

1989

Entomologia Exp Applicata

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“…The velvetbean caterpillar, Anticarsia gemmatalisHubner, is considered to be the primary insect defoliator in the southeastern U.S. and the Brazilian soybean production regions (Turnipseed & Kogan, 1976;Herzog & Todd, 1980). In North Florida, the initial insecticide applications against A. gemmatalis populations are effective in suppressing the target pest, but have been reported to disrupt the natural enemy complex which maintains the populations of various potential soybean pests below economic threshold levels (Greene, 1976 ;Greene et al, 1974 ;Shepard et al, 1977).…”

mentioning

confidence: 99%

Predators as potential dispersal agents of the nuclear polyhedrosis virus ofAnticarsia gemmatalis [Lep.: Noctuidae] in soybean

et al. 1987

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The relationships were surveyed among an introduced nuclear polyhedrosis virus (AgNPV), populations of its larval host Anticarsia gemmatalis, and other invertebrates associated with soybean. Early applications of AgNPV to small plots effectively suppressed A. gemmatalis populations without causing detectable perturbations in populations of other phytophagous insects or invertebrate predators. Bioassays of predators collected within and outside treated areas demonstrated that many invertebrates readily fed upon AgNPV-infected A. gemmatalis under field conditions. These results suggest that the predator complex enhances the epidemic potential of this baculovirus. The predators, by feeding upon virus infected larvae, are believed to play an important role in maintaining and disseminating virus inoculum in soybean.

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“…gemmatalis is known to migrate through eastern and central United States during summer and fall, and to overwinter in south Florida (Herzog & Todd 1980, Pashley & Johnson 1986. In Brazil, a study demonstrated that during summer the population peak of VBC on soybean moves to later periods, as its goes southward to greater latitudes (Corrêa et al 1977).…”

Section: Discussionmentioning

confidence: 99%

Survivorship, larval development and pupal weight of Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae) feeding on potential leguminous host plants

Panizzi¹,

Oliveira²,

Silva³

2004

Neotrop. Entomol.

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PALAVRAS-CHAVE: Insecta, lagarta-da-soja, planta hospedeira, legume, soja, Glycine max ABSTRACT -In Brazil, the velvetbean caterpillar Anticarsia gemmatalis Hübner is multivoltine. Several overlapping generations occur with larvae feeding on alternate host plants in areas of warmer temperatures. In this study, the survivorship and development of A. gemmatalis larvae were evaluated on 17 species of cultivated and non-cultivated legumes in laboratory conditions. Larval survivorship on summer legumes varied from 91% on soybean to 5% on showy crotalaria and on velvetbean. On winter legumes, survivorship of A. gemmatalis larvae varied from 90% on white lupin to 25% on common vetch. All larvae fed on yellow lupin died during early development. On non-cultivated summer legumes, 70% of the larvae on Indigofera suffruticosa Millsp., and 55% on I. truxillensis H.B.K. and I. endecaphylla Jacq. reached the pupal stage. Based on survivorship, larval development and pupal weight, the most suitable legumes for A. gemmatalis were soybean, pigeon pea, and white lupin.

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Sampling Velvetbean Caterpillar on Soybean

Cited by 29 publications

References 26 publications

Compensatory increases in food consumption and utilization efficiencies by velvetbean caterpillars mitigate impact of diluted diets on growth

Compensatory increases in food consumption and utilization efficiencies by velvetbean caterpillars mitigate impact of diluted diets on growth

Predators as potential dispersal agents of the nuclear polyhedrosis virus ofAnticarsia gemmatalis [Lep.: Noctuidae] in soybean

Survivorship, larval development and pupal weight of Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae) feeding on potential leguminous host plants

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