Comparação dos sistemas de cultivo nativo e adensado de erva mate, Ilex paraguariensis St. Hil., quanto à ocorrência e flutuação populacional de insetos

Borges, Larissa Rolim; Lázzari, Sonia Maria Noemberg; Lazzari, F. A.

doi:10.1590/s0085-56262003000400005

Cited by 20 publications

(22 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Changing in erva mate to monoculture production has increased the productivity, and in Brazil erva mate annual production is estimated approximately in 252,700 tons, concentrated in the states of Brazilian south region (Paraná, Santa Catarina and Rio Grande do Sul states) (IBGE, 2013). Monoculture production in Brazil also favors the occurrence of pests, especially Hedypathes betulinus (Klug, 1825) (Coleoptera: Cerambycidae), named "broca da erva-mate" BORGES et al, 2003). Adults live in the shoot, and mate and lay eggs near the base of the plant, on the branches and in bark crevices (CASSANELLO, 1993;GALILEO et al, 1993;D'AVILA et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Alves

Fanti

et al. 2017

View full text Add to dashboard Cite

The intensive exploitation of "erva mate" (Ilex paraguariensis St. Hil.) (Aquifoliaceae) has favored the emergence of pests, including Hedypathes betulinus. We evaluated 18 isolates of entomopathogenic nematodes Steinernema and Heterorhabditis genera for control of H. betulinus adults, and tested nematode in-vivo replication capacity in Galleria mellonella L. (Lepidoptera: Pyralidae) larvae. We also evaluated the effect of adjuvants for foliar application, and the efficiency of nematode isolates selected in erva mate seedlings in the greenhouse via application to soil and plant shoots. The PI and CB40 isolates showed the hgh virulence (92.5% insect mortality by both). The PI isolate showed low productivity in G. mellonella larvae, thus only CB40 was used in subsequent tests. Only emulsified vegetable oil adjuvant was compatible with nematodes. Soil application of nematodes proved ineffective; however, shoot application on erva mate seedlings showed significant mortality (82.5%) after exposure to the CB40 isolate without adjuvant. Keywords: Steinernema, Heterorhabditis, Ilex paraguaiensis, biological control. ResumoA exploração intensiva da erva-mate (Ilex paraguariensis St. Hil.) (Aquifoliaceae), tem favorecido o surgimento de pragas incluindo a broca-da-erva-mate (Hedypathes betulinus). Visando seu controle avaliouse a virulência de 18 isolados de nematoides entomopatogênicos dos gêneros Steinernema e Heterorhabditis sobre adultos do inseto e a capacidade de multiplicação in vivo dos nematoides em larvas de Galleria mellonella L. (Lepidoptera: Pyralidae). Foi avaliado também o efeito de adjuvantes foliares e a eficiência dos nematoides selecionados sobre o inseto, em mudas de erva-mate, em casa de vegetação, com aplicação no solo e na parte aérea das plantas. Os isolados PI e CB40 foram os de maior virulência sobre o inseto (92,5% de mortalidade, para ambos), porém o isolado PI mostrou-se pouco produtivo em larvas de G. mellonella e apenas o isolado CB40 foi usado nos testes subsequentes. Dentre os adjuvantes avaliados, somente o óleo vegetal foi compatível com o nematoide. No teste em casa-de-vegetação com aplicação no solo não foi observada mortalidade dos insetos. A aplicação na parte aérea das mudas de erva-mate apresentou efeito significativo, em relação à testemunha, sendo que com o isolado CB40 aplicado sem adjuvante obteve-se mortalidade de 82,5%.

show abstract

Section: Introductionmentioning

confidence: 99%

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Alves

Fanti

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Ilex paraguariensis occurs naturally in Brazil, Argentina and Uruguay, with Thelosia camina (Schaus, 1920) (Lepidoptera, Eupterotidae) and Hedypathes betulinus (Klug, 1825) (Coleoptera, Cerambycidae) being its main pests. 2 Volatile organic compounds (VOCs) are secondary metabolites of plants that play important defensive and attractive roles in the interactions between plants and other plants, herbivores, pathogens and pollinators, among other things. 3,4 Plants emit VOCs from leaves, flowers and fruits into the atmosphere and from roots into the soil, 5 and herbivory often induces the emission of novel VOC blends.…”

Section: Introductionmentioning

confidence: 99%

Volatile Organic Compounds (VOCs) Emitted by Ilex paraguariensis Plants are Affected by the Herbivory of the Lepidopteran Thelosia camina and the Coleopteran Hedypathes betulinus

Martins¹,

Vidal²,

Gomes³

et al. 2016

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

The profile of volatiles emitted by Ilex paraguariensis, leaves of which are used to produce a popular South American tea, were identified and compared among treatments. Headspace collections were performed for 24-72 hours for control, mechanical damage (MD), herbivory by larvae of Thelosia camina (TC), and by adults of Hedypathes betulinus (HB). Based on gas chromatography-mass spectrometry (GC-MS) and gas chromatography-Fourier transform infrared (GC-FTIR) analyses, 20 compounds were identified, totaling about 7, 5, 20, and 25 µg/plant/treatment (control, MD, TC and HB, respectively). Statistical analyses revealed that control and MD treatments are different from TC and HB herbivory treatments. Furthermore, HB herbivory was distinctive from the other treatments at 24 h in that HB feeding induced a distinctive pattern of emission of terpenes. Major compounds per treatments were decanal for control and DM, 4,8-dimethylnona-1,3,7-triene (DMNT) and 2-undecanone for TC, and DMNT and (E)-β-ocimene for HB.

show abstract

“…In parallel, the use of pesticides that are not registered and/or recommended for crops contributes to the formation of an ecologically unbalanced environment, favoring the emergence of pests, including the borer Hedypathes betulinus, the Paraguay tea psyllid, Gyropsylla spegazziniana, the red mite Oligonychus yorthesi (Acari: Tetranychidae), and the caterpillars Thelosia camina (Lepidoptera: Eupterotidae) and Hylesia sp. (Lepidoptera: Hemileucidae) (IEDE; MACHADO, 1989;SAINI;DE COLL, 1993;DIAZ, 1997;BORGES et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…In Brazil, the losses from this pest can be nearly 54%, whereas they are up to 35% in Argentina (RIVERA FLORES, 1983;CHIARADIA et al, 2000). However, despite the importance of this pest, there are few available studies on G. spegazziniana, which have been focused on only determining its population dynamics (BORGES et al, 2003;ZANOL, 2001;LEITE et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Characterization and activity of entomopathogenic fungi isolates against “paraguay tea ampul” (Gyropsylla spegazziniana) (Lizer & Trelles) (Hemiptera: Psyllidae)

et al. 2015

View full text Add to dashboard Cite

Paraguay tea is a native crop of southern Brazil and is also socioeconomically important in Paraguay and Argentina. One of the main pests of this crop is Gyropsylla spegazziniana (Hemiptera: Psyllidae). As there are no registered insecticides for this pest in Brazil, the use of entomopathogenic fungi is an alternative method for its control. This study aimed to evaluate and characterize isolates of the entomopathogenic fungi Beauveria spp., Metarhizium anisopliae, Isaria spp. and Lecanicillium spp. on G. spegazziniana. For this purpose, 5 th instar nymphs were transferred to Paraguay tea seedlings, followed by spraying of conidial suspensions (1 × 10 9 conidia mL -1 ) and then placing the seedlings in polyvinyl chloride (PVC) cages and maintaining them in a temperature-controlled room (26 ± 1°C, 12h00 photophase, 60 ± 10% R.H.). Insect mortality was evaluated daily for 10 days, and the selected isolates were characterized according to their vegetative growth, conidial production in synthetic culture medium and rice and insecticidal activity as well as through molecular analyses, including sequencing the rDNA-ITS region and RAPD analysis. The genus Beauveria spp. was the most efficient, particularly the Unioeste 44 isolate, which caused the greatest total mortality of G. spegazziniana (81.7%) and showed among the highest conidial production levels on rice, indicating a significant potential to be used in an integrated management program for this pest. Molecular analysis of the rDNA-ITS region allowed the isolates to be identified as B. bassiana and B. brongniartii, and RAPD markers were found to be associated with virulence. Key words: Biological control, Ilex paraguariensis, rDNA-ITS ResumoA erva-mate (Ilex paraguariensis St. Hil.) é uma cultura nativa do Sul do Brasil, tendo grande importância socioeconômica também para o Paraguai e Argentina. Uma das principais pragas da cultura é a Gyropsylla spegazziniana (Hemiptera: Psyllidae), e pelo fato de não existirem inseticidas registrados para essa praga no Brasil, o uso de fungos entomopatogênicos pode ser uma alternativa para o seu controle. O objetivo desse trabalho foi caracterizar isolados dos fungos entomopatogênicos Beauveria spp., Metarhizium anisopliae, Isaria spp. e Lecanicillium spp. sobre G. spegazziniana. Para tal, ninfas de 5 o ínstar foram transferidas para mudas de erva-mate, seguido da pulverização das suspensões de conídios (1 × 10 9 conídios mL -1 ), e então as mudas foram acondicionadas em gaiolas de PVC (cloreto de polivinila), e mantidas em sala climatizada (26 ± 1°C; 12h00 de fotofase e U.R. 60 ± 10%). A mortalidade dos insetos foi avaliada diariamente, por 10 dias, e os isolados selecionados foram comparados entre si por meio do crescimento vegetativo, produção de conídios em meio sintético e em arroz, atividade inseticida e análises moleculares, utilizando-se o sequenciamento da região rDNA-ITS e marcadores RAPD. O gênero Beauveria spp. foi o mais eficiente, em especial o isolado Unioeste 44 que apresentou a maior mortalidade total s...

show abstract

Comparação dos sistemas de cultivo nativo e adensado de erva mate, Ilex paraguariensis St. Hil., quanto à ocorrência e flutuação populacional de insetos

Cited by 20 publications

References 1 publication

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Potential of Entomopathogenic Nematodes for Control of the Erva-Mate Pest Hedypathes Betulinus (Klug, 1825) (Coleoptera: Cerambycidae)

Volatile Organic Compounds (VOCs) Emitted by Ilex paraguariensis Plants are Affected by the Herbivory of the Lepidopteran Thelosia camina and the Coleopteran Hedypathes betulinus

Characterization and activity of entomopathogenic fungi isolates against “paraguay tea ampul” (Gyropsylla spegazziniana) (Lizer & Trelles) (Hemiptera: Psyllidae)

Contact Info

Product

Resources

About