Persistência de agrotóxicos utilizados na produção integrada de maçã a Trichogramma pretiosum

Nörnberg, Sandro Daniel; Grützmacher, Anderson Dionei; Kovaleski, A.; Finatto, Jonas Alex; Paschoal, M.D.F.

doi:10.1590/s1413-70542011000200011

Cited by 10 publications

(5 citation statements)

References 15 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several studies have demonstrated the high toxicity of insecticides belonging to the organophosphate chemical group for different Trichogramma species. Moscardini et al (2008) and Nörnberg et al (2011) verified that the fenitrothion and methidathion, and chlorpyrifos and malathion insecticides, respectively, were harmful to T. pretiosum and reduced its parasitism capacity due to the high mortality rates recorded. Studies conducted by Maia et al (2010) with T. atopovirilia and by Hussain et al (2010) with T. chilonis also indicated high toxicity of chlorpyrifos for both Trichogramma species.…”

Section: Resultsmentioning

confidence: 99%

Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring

Souza

Carvalho

Moura

et al. 2013

Chilean J. Agric. Res.

View full text Add to dashboard Cite

Corn (Zea mays L.) is cultivated in large areas and considered one of the world's major cereal crops. There are several arthropod pests that can reduce its production such as the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lep.: Noctuidae), which is considered to be the main pest for corn. Fall armyworm is primarily controlled by insecticides. The use of biological control agents to manage this pest is growing with an emphasis on the egg parasitoid Trichogramma pretiosum Riley (Hym.: Trichogrammatidae). Thus, the aim of this research was to evaluate the impact of the following insecticides (g ai L -1 ) beta-cypermethrin (0.03), chlorfenapyr (0.60), chlorpyrifos (0.96), spinosad (0.16), etofenprox (0.10), triflumuron (0.08), alfa-cypermethrin/teflubenzuron (0.0425/0.0425), and lambda-cyhalothrin/thiamethoxam (0.11/0.083) on survival, sex ratio, reproduction, and T. pretiosum offspring. Distilled water was used as a control. Commercial insecticide formulations were diluted in distilled water. Bioassays used Anagasta kuehniella eggs treated with insecticides which were afterwards exposed to parasitism. Bioassays were conducted under controlled conditions at 25 ± 2 ºC, 70 ± 10% RH, and 12:12 h photoperiod. Alfa-cypermethrin/teflubenzuron, beta-cypermethrin, chlorpyrifos, chlorfenapyr, spinosad, etofenprox, and lambda-cyhalothrin/thiamethoxam reduced parasitism capacity of maternal generation females as well as the percentage of insect emergence from the F1 generation. Only triflumuron was selective for T. pretiosum and can be recommended along with this parasitoid in fall armyworm management programs in corn.

show abstract

Section: Resultsmentioning

confidence: 99%

Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring

Souza

Carvalho

Moura

et al. 2013

Chilean J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…Dentre os fatores que podem ter influenciado esse resultado, cita-se a condução do trabalho em telado, sem controle das condições ambientais, e a espécie de parasitoide estudada, uma vez que T. pretiosum pode apresentar susceptibilidade ao agrotóxico diferente da apresentada por T. cacoeciae. Nörnberg et al, (2011) e Giolo et al, (2005 classificaram o fungicida-acaricida enxofre como persistente (classe 4) para controle dos adultos de T. pretiosum, resultado que também foi obtido por Grützmacher et al (2004), porém para o parasitoide T. cacoeciae. No entanto, neste trabalho, esse produto foi classificado como moderadamente persistente (classe 3), apresentando redução do parasitismo aos 31 DAP de 13,99% (Figura 2).…”

Section: Resultsunclassified

Ação residual de agrotóxicos pulverizados em plantas de milho sobre Trichogramma pretiosum

et al. 2017

Self Cite

View full text Add to dashboard Cite

Submetido em 16/12/2014 Objetivou-se, com este trabalho, avaliar a ação residual de nove inseticidas e de um fungicida-acaricida sobre o parasitoide Trichogramma pretiosum (Riley, 1879), em condições de semicampo, sob telado. Plantas de milho foram pulverizadas com os agrotóxicos até o ponto de escorrimento, três dias antes da montagem dos ensaios. Ovos de Anagasta kuehniella (Zeller, 1879) foram ofertados, em cartelas de cartolina azul, individualizadas no interior de gaiolas. Os adultos recém-emergidos de T. pretiosum foram liberados na proporção de 1,6 fêmeas por ovo do hospedeiro alternativo. As liberações de T. pretiosum foram realizadas aos 3, 10, 17, 24 e 31 dias após a pulverização das plantas. Os agrotóxicos foram classificados quanto a sua persistência, seguindo-se a escala proposta pela IOBC. Os resultados mostraram que os produtos comerciais-ingredientes ativos (kg ou L ha -1 ) usados na cultura do milho, beta-ciflutrina (0,10), cipermetrina (0,08), clorpirifós (1,00), lambda-cialotrina 50 (0,15), enxofre (1,00), metomil (0,60) e tiodicarbe (0,15) foram moderadamente persistentes (classe 3) (16-30 dias de ação nociva) e lambda-cialotrina 250 (0,10), espinosade (0,10) e lambda-cialotrina + tiametoxam (0,25), foram persistentes (classe 4) (> 31 dias de ação nociva sobre T. pretiosum). Palavras Residual action of pesticides sprayed on corn plants on Trichogramma pretiosumThe objective of this study was to evaluate the residual effect of nine pesticides and a fungicide/acaricide on the parasitoid Trichogramma pretiosum Riley, 1879, in field conditions. Corn plants were sprayed with pesticides up to the runoff point three days before assembling the bioassays. Anagasta kuehniella (Zeller, 1879) eggs were offered in blue cardstock cards, individualized within the cages. The newly emerged adults of T. pretiosum were released in the proportion of 1.6 female per egg of the alternative host. Releases of the parasitoids were performed at 3, 10, 17, 24, and 31 days after spraying the plants. The pesticides were classified by their persistence, following the scale proposed by IOBC. The results showed that the commercial/active ingredients (kg or L ha.-1 ), used in corn, beta-cyfluthrin (0.10), cypermethrin (0.08), chlorpyrifos (1.00), lambda-cyhalothrin 50 (0.15), methomyl (0.60), sulfur (1.00), and thiodicarb (0.15) were moderately persistent (class 3; 6-30 days of harmful action) and lambda-cyhalothrin 250 (0.10), lambdacyhalothrin + thiamethoxam (0.25), and spinosad (0.10) were persistent (Class 4; > 31 days of harmful action) on T. pretiosum.

show abstract

“…Phosmet persistence is also reported for parasitoids. The egg's parasitoid T. pretiosum was susceptible to residues of this pesticide after 31 days from spraying in vine leafs (NÖRNBERG et al, 2011). Also, BELOTI et al 2017classified the organophosphorus phosmet as moderately persistent (class 3) and malathion as slightly persistent (class 2) for the parasitoid specie Tamarixia radiata (Hymenoptera: Eulophidae).…”

Section: Discussionmentioning

confidence: 99%

Persistence of insecticides used in peach orchards to larvae and adults of the predator Chrysoperla externa (Neuroptera: Chrysopidae)

et al. 2019

Self Cite

View full text Add to dashboard Cite

This work aimed to evaluate the persistence (duration of harmful activity) of five insecticides used for pest control in peach orchards, on larvae and adults of the predator Chrysoperla externa. The insecticides were sprayed on cv. Bordô vine plants using the maximum dosage recommended for peach orchards. Weekly, at 3, 10, 17, 24 and 31 days after spraying, larvae and adults of the predator were exposed to treated leaves in order to assess the residual effect of insecticides on mortality and possible effects on reproduction. Given the toxicity observed along the weekly bioassays, the insecticides were classified into persistence categories established by the International Organization for Biological and Integrated Control of Noxious Animals and Plants (IOBC). High persistence was obtained for the organophosphorus insecticides (% of active ingredient) phosmet (0.100) and malathion (0.200), and both were considered persistent (> 30 days of harmful activity) to larvae and adults of C. externa. Similarly, the benzoylurea insecticide lufenuron (0.005), which acts exclusively on immature stages of insects, was persistent to larvae. Differences concerning the persistence for both development stages evaluated were observed for the pyrethroid insecticide deltamethrin (0.001), that was persistent to larvae but moderately persistent (16 – 30 days of harmful activity) to adults; and for the organophosphate fenthion (0.050) which was considered moderately persistent to larvae and short-lived (< 5 days of harmful activity) to adults of C. externa.

show abstract

Persistência de agrotóxicos utilizados na produção integrada de maçã a Trichogramma pretiosum

Cited by 10 publications

References 15 publications

Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring

Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring

Ação residual de agrotóxicos pulverizados em plantas de milho sobre Trichogramma pretiosum

Persistence of insecticides used in peach orchards to larvae and adults of the predator Chrysoperla externa (Neuroptera: Chrysopidae)

Contact Info

Product

Resources

About