Dry Cucurbitacin-containing Baits for Controlling Diabroticite Beetles (Coleoptera: Chrysomelidae)

Metcalf, Robert L.; Ferguson, J. E.; Lampman, Richard L.; Andersen, John F.

doi:10.1093/jee/80.4.870

Cited by 69 publications

(39 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Arrestments of several species of Diabrotica to cucurbitacin and their feeding on baits have been previously reported (Metcalf et al, 1987). In the field, the non arrestment after a total 78 mm rainfall suggests that formulations were washed off.…”

Section: Resultsmentioning

confidence: 83%

Feeding and arrestment responses of Diabrotica speciosa to cucurbitacin-content formulations

Arruda

Ventura

Scarmínio

2005

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate arrestant and stimulant feeding effects on Diabrotica speciosa (Ger.), using cucurbitacin-content starch-based formulations prepared with varying starch sources, and adding potassium lignate. In a glass slide assay, the wash off resistance of formulations was compared. Potassium lignate did not improve wash off resistance. Lagenaria vulgaris L. powder, in which cucurbitacin B concentration was determined as 0.28%, was added to the most adhesive formulation. The resultant material was used in a two-choice assay in which leaves of common bean, Phaseolus vulgaris L., treated with concentrations of 2.5%, 5%, 10%, 15% and 20% were offered to insects together with untreated control leaves. Greater number of insects and leaves consumed were found on leaves treated with cucurbitacin-content formulation (2.5%, 5% -greatest response -, 10% and 15% concentrations) than on untreated control leaves. The concentration, in which responses were higher, was sprayed in a bean field at 1,000, 1,900 and 3,000 g ha -1 . Greater number of beetles was found in plots treated with the highest dosage, 3 and 6 days after spraying. Ten days after spraying, no significant differences were found among dosages, probably due to washoff of the bait.Index terms: Insecta, Coleoptera, bait, semiochemical, rootworm. Respostas alimentares e arrestantes de Diabrotica speciosa a formulações contendo cucurbitacinaResumo -O objetivo deste trabalho foi avaliar os efeitos alimentares estimulantes e arrestantes para Diabrotica speciosa (Ger.), a partir de formulações amiláceas com cucurbitacina, variando-se as fontes de amido e adicionando-se lignato de potássio. Em ensaio com lâmina de vidro, comparou-se a resistência à lavagem das formulações. O lignato de potássio não aumentou a resistência à lavagem. Pó de Lagenaria vulgaris L., cuja concentração de cucurbitacina B foi determinada como sendo de 0,28%, foi adicionado à formulação mais adesiva. O material resultante foi utilizado em ensaios com dupla chance de escolha, nos quais folhas de feijão, Phaseolus vulgaris L., pulverizadas com concentrações de 2,5%, 5%, 10%, 15% e 20% foram oferecidas aos insetos juntamente com folhas não tratadas. Foram observados maior número de insetos e maior quantidade de folhas consumidas nas folhas tratadas com formulações com cucurbitacina (2,5%, 5% -maior resposta -, 10% e 15%) do que nas folhas não tratadas. A formulação cuja concentração teve maior resposta foi pulverizada em lavoura de feijão, nas dosagens de 1.000, 1.900 e 3.000 g ha -1 . O maior número de adultos de D. speciosa foi encontrado nas parcelas tratadas com a maior dosagem, aos 3 e 6 dias após a pulverização. Dez dias após a pulverização, não foram encontradas diferenças entre as dosagens, provavelmente por causa da lavagem da isca pelas chuvas.Termos para indexação: Insecta, Coleoptera, isca, semioquímico, larva alfinete.

show abstract

Section: Resultsmentioning

confidence: 83%

Feeding and arrestment responses of Diabrotica speciosa to cucurbitacin-content formulations

Arruda

Ventura

Scarmínio

2005

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Em estudos com D. virgifera virgifera e D. undecimpunctata Barber, 1947(METCALF et al, 1987, observaram maiores capturas em iscas com adição de inseticidas carbamatos comparados aos piretróides e organofosforados. LANCE (1988) relatou aumento na captura de D. virgifera virgifera e D. barberi Smith e Lawrence, 1967 quando associou em iscas a cucurbitacina, o óleo de oliva, os inseticidas carbamatos e voláteis (estragol e eugenol).…”

Section: Resultsunclassified

“…), poderia ser uma estratégia viável de controle. O inseticida carbaril tem sido o mais empregado para associação às iscas no controle de outras espécies do gênero Diabrotica, por não apresentar efeito repelente sobre a praga (METCALF et al, 1987). Na América do Norte, a isca SLAM ® , que contém cucurbitacina, vem sendo empregada no controle de D. virgifera virgifera LeConte, 1868 e D. virgifera zeae Krysan e Smith, 1980 em cultivo de milho (CHANDLER, 2003).…”

Section: Introductionunclassified

Isca amilácea de cucurbitacina (Lagenaria vulgaris L.) promove maior eficiência do inseticida carbaril no controle de Diabrotica speciosa, em laboratório

Mikami

Ventura

2008

Cienc. Rural

View full text Add to dashboard Cite

show abstract

“…3) Cucurbitacin receptors are strongly conserved in the rapidly evolving species of Diabroticites and the several important pests attacking corn (corn rootworms) respond avidly to ng to gg traces of cucs B and E by arrest and phagostimulation [41]. This ecological behavior provides a new technology of "attracticides" that is significant in decreasing environmental pollution of corn soil from the use of rootworm insecticides, by 90% or more.…”

Section: Cucurbitacin Kairomones For Diabrotica Rootwormsmentioning

confidence: 99%

“…This is mirrored in the astonishing effectiveness of cuc-containing "attracticide baits" for adult corn rootworms which produce commercial control when applied at cuc-concentrations as low as l gha -1 [41]. The "beetle-print" bioassay has been indispensible in the characterization of cuc biosynthesis in plants, in studying cuc metabolism in insects, and in the breeding of Cucurbita cultivars resistant to Diabrotica herbivory by genetic elimination of cuc kairomones [42].…”

Section: Cucurbitacin Kairomones For Diabrotica Rootwormsmentioning

confidence: 99%

Ultramicrochemistry of insect semiochemicals

Metcalf

1998

Mikrochim Acta

Self Cite

View full text Add to dashboard Cite

Abstract. Chemical ecology of the Insecta comprisesan invisible environment where semiochemicals are the principal factors regulating the mating and hostselection of the one million or more species. Biologically effective concentrations of these semiochemicals range from 10 -1~ to 10 -3 ~tg at the insect antennal receptors. These levels are virtually undetectable by conventional microchemistry, and can be measured only by behavioral bioassay and by electrophysiology which are about 10,000 and 100-fold more sensitive than gas chromatography.Despite more than 40 years of study, the sex pheromones have been identified from only about 1300 species of insects (0.1%). The dearth of information about kairomones from host plants for phytophagous insects is even more astonishing, and only about 400 plant species have been studied extensively (ca. 0.2%), and the odorant spectra characterized in only 10 important crop plants. These odorants are chemically complex and their action as semiochemicals for insect herbivores, involves degrees of receptor specificity and synergism that are virtually unstudied.These lacunae in our knowledge of chemical ecology are fundamental to the study of ecology, behavior, and evolution of insects; but also are of vital importance in applied entomology. There is much societal pressure to progress from broadcast application of insecticides, to specific and innovative methods for insect control that are non-hazardous to human health and to environmental quality. Pest management strategies involving the use of semiochemicals are essential to reach this goal. These include monitoring insect populations vis-a-vis the economic threshold, the use of attracticide baits, and strategies for mating confusion and behavioral confusion of insect pest populations in row and orchard crops.The immensity of the semiochemical environments of plant and insect communities, the intellectual challenges for understanding ecology and evolution, and the immediate need for application to applied entomology provide compelling reasons for enhanced study of the microchemistry of semiochemicals.

show abstract

Dry Cucurbitacin-containing Baits for Controlling Diabroticite Beetles (Coleoptera: Chrysomelidae)

Cited by 69 publications

References 0 publications

Feeding and arrestment responses of Diabrotica speciosa to cucurbitacin-content formulations

Feeding and arrestment responses of Diabrotica speciosa to cucurbitacin-content formulations

Isca amilácea de cucurbitacina (Lagenaria vulgaris L.) promove maior eficiência do inseticida carbaril no controle de Diabrotica speciosa, em laboratório

Ultramicrochemistry of insect semiochemicals

Contact Info

Product

Resources

About