Toxicidade de produtos fitossanitários utilizados na cultura do cafeeiro a larvas de Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) e efeitos sobre as fases subseqüentes do desenvolvimento do predador

Silva, Rogério A.; Carvalho, Geraldo Andrade; Carvalho, César Freire; Reis, Paulo Rebelles; Pereira, Antonio Marcos Andrade Rezende; Cosme, Luciano V.

doi:10.1590/s1519-566x2005000600012

Cited by 27 publications

(43 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Esses resultados assemelham-se aos obtidos por Maia et al (2000), que alimentaram C. externa com Schizaphis graminum (Rondani, 1852) (Hemiptera: Aphididae) e constataram duração média do período larval entre 9 e 11 dias, para temperaturas de 24 a 27 o C, e aos de Silva et al (2005), que aplicaram enxofre (Kumulus 800 PM) a 4 g i.a./L sobre larvas de primeiro instar dessa mesma espécie e verificaram média de 8,3 dias.…”

Section: Resultsunclassified

“…Silva et al (2005) também constataram que a sobrevivên-cia de larvas tratadas com enxofre não diferiu significativamente do tratamento testemunha.…”

Section: Resultsunclassified

“…A duração e a sobrevivência das fases de pré-pupa e pupa não foram afetadas pelos compostos espirodiclofeno, enxofre e abamectina (Tabela 2), fato também observado por Silva et al (2005), que justificaram a inocuidade de alguns compostos testados devido à sua degradação pelo sistema enzimático de larvas de C. externa.…”

Section: Resultsunclassified

“…Possivelmente, isto ocorreu em função da capacidade das larvas desse instar em degradar o composto, o que não foi constatado para as larvas do primeiro estádio. Essas observações coincidem com a sintomatologia descrita por Silva et al (2005), que, quando aplicaram o piretróide betaciflutrina em larvas de C. externa, observaram que suas atividades cessaram por um período de aproximadamente 12 horas. Rigitano & Carvalho (2001) relataram que os piretróides possuem efeito de choque acentuado; contudo, em certos casos há recuperação dos insetos, fato esse acontecido no presente estudo.…”

Section: Tratamentounclassified

“…Resultados semelhantes foram encontrados por Silva et al (2005), que enquadraram o enxofre a 4 g i.a./L na classe 1 e Godoy et al (2004), que inseriram deltametrina a 0,0125 g i.a./L na classe 4.…”

Section: Tratamentounclassified

See 4 more Smart Citations

Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeos

Vilela

Carvalho

et al. 2010

Rev. Ceres

View full text Add to dashboard Cite

Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeos Rev. Ceres, Viçosa, v. 57, n.5, p. 621-628, set/out, 2010 RESUMO ABSTRACTS Selectivity of acaricides used in coffee crops to green lacewingGreen lacewings are commonly found in coffee agroecosystems feeding on several pests of economic importance. The objective of this study was to evaluate the selectivity of acaricides used in coffee crop to Chrysoperla externa (Hagen, 1861). The treatments consisted of control (water), spirodiclofen (0.12 g a.i./L), fenpropathrin (0.15 and 0.30 g a.i./L), sulphur (4.0 and 8.0 g a.i./L) and abamectin (0.0067 and 0.0225 g a.i./L). The products were sprayed directly on first, second and third-instar larvae of C. externa, using a Potter spray tower. Duration of instar, survival of larvae and pupae and viability of eggs produced by the adults emerged from the treated larvae were evaluated. The pesticides were classified into toxicity classes. Fenpropathrin was toxic and spirodiclofen and abamectin were moderately toxic, requiring further studies under greenhouse and field conditions to confirm or not their toxicities. Because of the low toxicity of sulphur to the predator C. externa, it can be recommended for coffee pest management programs in order to combine chemical and biological control using this Chrysopidae species. Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeosOs crisopídeos são encontrados em agroecossistema cafeeiro alimentando-se de várias pragas. Objetivou-se avaliar a seletividade de acaricidas utilizados na cafeeiculta sobre a biologia de Chrysoperla externa (Hagen, 1861). Os tratamentos foram: testemunha (água), espirodiclofeno (0,12 g i.a./L), fenpropatrina (0,15 e 0,30 g i.a./L), enxofre (4,0 e 8,0 g i.a./L) e abamectina (0,0067 e 0,0225 g i.a./L). Pulverizaram-se os produtos sobre larvas de primeiro, segundo e terceiro instares de C. externa por meio da torre de Potter. Avaliaram-se a duração do instar, sobrevivência das larvas e pupas e viabilidade dos ovos produzidos pelos adultos provenientes das larvas tratadas. Os produtos foram classificados em classes de toxicidade. Fenpropatrina foi nocivo e espirodiclofeno e abamectina foram moderadamente nocivos, necessitando de novos estudos em condições de casa de vegetação e campo para confirmação ou não de suas toxicidades. Em função da baixa toxicidade apresentada pelo enxofre ao predador C. externa, pode ser recomendado em programas de manejo de pragas do cafeeiro visando compatibilizar os métodos químico e biológico por meio dessa espécie de crisopídeo. Palavras-chave:Chrysoperla externa (Hagen, 1861), Coffea arabica L., pesticidas, toxicidade.

show abstract

Section: Resultsunclassified

“…Silva et al (2005) também constataram que a sobrevivên-cia de larvas tratadas com enxofre não diferiu significativamente do tratamento testemunha.…”

Section: Resultsunclassified

Section: Tratamentounclassified

See 3 more Smart Citations

Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeos

Vilela

Carvalho

et al. 2010

Rev. Ceres

View full text Add to dashboard Cite

show abstract

Effect of the insect growth regulator diflubenzuron on the predator Podisus nigrispinus (Heteroptera: Pentatomidae)

et al. 2011

View full text Add to dashboard Cite

Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) is a common natural predator of defoliating caterpillars in agricultural and forest systems. Insecticides acting as growth regulators of insect pests can indirectly affect their predators through consumption of contaminated prey. We examined the reproductive performance of P. nigrispinus fed on caterpillars of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) reared on soybean leaves exposed to the chitin synthesis inhibitor, diflubenzuron. Caterpillars of A. gemmatalis were fed for 12 h with treated soybean leaves and offered to adults of the predator P. nigrispinus over five consecutive days. The fertility of P. nigrispinus was reduced when feeding on diflubenzuron treated caterpillars, especially at the beginning of the reproductive period, but recovered 3 weeks later. The effects of diflubenzuron ingestion on the life table parameters of P. nigrispinus included an increase in the period taken to double the population size, and reductions in the intrinsic rate of population increase, generation duration, and net reproductive rate. Diflubenzuron therefore had an indirect negative effect on the reproduction and the population dynamics of the non-target predator P. nigrispinus. Clearly, its use in integrated pest management requires further evaluation.

show abstract

Lethal and sublethal effects of pesticides on Chrysoperla carnea larvae (Neuroptera: Chrysopidae) and the influence of rainfastness in their degradation pattern over time

et al. 2016

View full text Add to dashboard Cite

The predator Chrysoperla carnea is a model species for the study of non-target effects of pesticides under different scenarios: registration of plant protection products under the European Union and effects of the Bt toxin. Laboratory and persistence studies were carried out with six pesticides currently used in corn crops in Spain that were applied at their maximum field recommended concentrations. The assessed end-points were larval mortality, survivorship until adult stage, duration of the larval and pupal periods, fecundity, fertility and sex ratio of the emerged adults. Based on the total effect (lethal and sublethal) caused to L3 larvae in contact with fresh residues in the laboratory, pendimethalin was harmless (IOBC 1), lambda-cyhalothrin, abamectin, and hexythiazox were slightly harmful (IOBC 2), deltamethrin was moderately harmful (IOBC 3) and chlorpyrifos was harmful (IOBC 4). Afterwards, the residues of the two most toxic pesticides in the lab (deltamethrin and chlorpyrifos) were aged under greenhouse conditions (22 ± 2 °C, 40 ± 10 % R.H., 16.9 μmol m(-2) s(-1) UV radiation) in the presence and absence of artificial rainfall (10 l m(-2) h(-1), applied 24 h after pesticide application). Deltamethrin was classified as short lived (IOBC A) in both cases. However, degradation of chlorpyrifos residues was accelerated in the presence of rainfall, leading to the classification as slightly persistent (IOBC B), while in absence of rainfall it behaved as persistent (IOBC D). Every pesticide can be recommended for inclusion in corn IPM programs where the predator is present except chlorpyrifos that exhibited high direct toxicity in the lab and prolonged residual action even in the presence of rainfall.

show abstract

Toxicidade de produtos fitossanitários utilizados na cultura do cafeeiro a larvas de Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) e efeitos sobre as fases subseqüentes do desenvolvimento do predador

Cited by 27 publications

References 7 publications

Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeos

Seletividade de acaricidas utilizados em cafeeiro para larvas de crisopídeos

Effect of the insect growth regulator diflubenzuron on the predator Podisus nigrispinus (Heteroptera: Pentatomidae)

Lethal and sublethal effects of pesticides on Chrysoperla carnea larvae (Neuroptera: Chrysopidae) and the influence of rainfastness in their degradation pattern over time

Contact Info

Product

Resources

About