Eficiência de Metarhizium anisopliae no controle do Percevejo-do-Colmo Tibraca limbativentris (Heteroptera: Pentatomidae) em lavoura de arroz irrigado

Martins, José Francisco da Silva; Botton, Marcos; Carbonari, Jairo J.; Quintela, E. D.

doi:10.1590/s0103-84782004000600003

Cited by 21 publications

(22 citation statements)

References 14 publications

(11 reference statements)

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“…The rice stink bug, Tibraca limbativentris Stal, 1860 (Heteroptera: Pentatomidae), is one of the most serious pests attacking irrigated rice (Oryza sativa L.) crops worldwide, as it can cause yield losses up to 80 % when control measures are neglected (Ferreira et al, 1986;Martins et al, 2004). Metarhizium spp.…”

Section: Introductionmentioning

confidence: 99%

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Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae

Silva

Quintela

Mascarin

et al. 2013

Sci. agric. (Piracicaba, Braz.)

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The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (strain CG 168). A conidial suspension containing the pesticide at recommended field dosage was subjected to constant agitation in a rotary shaker for 3h to simulate a tank mixing. Then, aliquots of each suspension were used to determine conidial germination, vegetative growth and conidiation on potato dextrose agar (PDA). The fungicides difenoconazole (69 mL ha -1 ), propiconazole (75 mL ha -1 ), trifloxystrobin (313 g ha -1 ) and azoxystrobin (56 mL ha -1 ) were the most harmful products to all biological stages of M. anisopliae and they should not be applied together with this fungus in tank mixing. The insecticides exhibited the least degree of toxicity to this fungal pathogen, whereas the herbicides had the greatest impact on mycelial growth. The agrochemicals compatible with M. anisopliae were the insecticides methyl parathion (240 mL ha -1 ), thiamethoxam (31 g ha -1 ), and lambda-cyhalothrin (6.3 mL ha -1 ) and the herbicides glyphosate (1560 mL ha -1 ), bentazon (720 mL ha -1 ), and imazapic+ imazapyr (84 g ha -1 ). The compatible pesticides could be simultaneously used with this bio-control agent for integrated pest management in rice production systems.

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Section: Introductionmentioning

confidence: 99%

“…Metarhizium anisopliae (Metch.) Sorok (Ascomycota: Clavicipitaceae) complex has been observed causing epizootics on populations of T. limbativentris under irrigated conditions, and field trials with this fungus have shown promising results for the management of this pest in Brazil (Martins et al, 2004;Rampelotti et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae

Silva

Quintela

Mascarin

et al. 2013

Sci. agric. (Piracicaba, Braz.)

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“…In this context, biological control with the use of entomopathogenic fungi M. anisopliae (Metschnikoff) (Deuteromycetes) may be a viable alternative for the management of N. viridula and D. melacanthus in wheat. Several studies have shown that the fungus presented high pathogenicity to different species of bugs (SOSA-GÓMEZ; MOSCARDI, 1998;MARTINS et al, 2004;XAVIER;ÁVILA, 2006;RAMPELOTTI et al, 2007), especially to the sugarcane leafhopper, Mahanarva posticata (Stal, 1855) (Hemiptera: Cercopidae) (LOUREIRO et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity of Metarhizium anisopliae isolates on Nezara viridula and Dichelops melacanthus in wheat crop

et al. 2017

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Bugs such as Nezara viridula (Linnaeus) and Dichelops melacanthus (Dallas) are considered the main insect pests of wheat crop in Brazil. The use of the entomopathogenic fungus Metarhizium anisopliae (Metschnikoff) may be an alternative for the management of these insects in the crop. The objective of this work was to verify the pathogenicity of different isolates of M. anisopliae on adults of N. viridula and D. melacanthus under laboratory and greenhouse conditions. In the laboratory, isolates 05RA, 11RA, 08RA and 02RA were obtained from N. viridula and D. melacanthus infested with M. anisopliae. Also, a high pathogenicity (100% of mortality) of both species was recorded in a bioassay of the topical application 8 Days After Application (DAA). However, compared to the other isolates, the 08RA isolate showed the highest pathogenicity in a shorter time interval for N. viridula (Mean Time “MT” = 2.8 days) and D. melacanthus (MT = 4.0 days). Under greenhouse conditions, the 08RA isolate provided a mortality of 44.9% (N. viridula) and 35.7% (D. melacanthus) in the same evaluation period. However, at 14 DAA, the mortality was 100% for both species, with the MT values of N. viridula and D. melacanthus being obtained at 8 days and 10 days, respectively. The fungus M. anisopliae is a promising alternative for the control of adult N. viridula and D. melacanthus in wheat crop.

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“…Due to the wide distribution of M. anisopliae in the ecosystem (soil) and its ability to infect a great number of insects, the use of this fungus as an alternative biological pest management tool has been suggested (Sung et al, 2007;Sandhu et al, 2012). Furthermore, natural infestations of M. anisopliae in stink bug species were reported (Xavier and Ávila 2006;Barbosa et al, 2015); this fungus was employed to control the sugarcane spittlebug Mahanarva posticata (Stal, 1855) (Hemiptera: Cercopidae) (Loureiro et al, 2012) and other pest stink bug species (Martins et al, 2004;Xavier and Ávila, 2006;França et al, 2006;Rampelotti et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Control of wheat stink bugs (Hemiptera: Pentatomidae) in southern Brazil using the fungus Metarhizium anisopliae

Groth¹,

Bellé²,

Zimmer³

et al. 2017

Aust J Crop Sci

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Stink bugs of the species Nezara viridula and Dichelops melacanthus are considered as some of the main insect pests associated with wheat production in Brazil. The use of the entomopathogenic fungus Metarhizium anisopliae might be an alternative for the management of these insects with chemical insecticides. Thus, the aim of this study was to evaluate and ascertain the pathogenicity of different isolates of M. anisopliae on N. viridula and D. melacanthus adults under laboratory and greenhouse conditions. In the laboratory, the fungal isolates 05RA, 11RA, 08RA, and 02RA, which were collected in the field from adults of N. viridula and D. melacanthus infected with M. anisopliae, were highly pathogenic, leading to 100% mortality in adults of N. viridula and D. melacanthus at 8 days after application (DAA). However, the isolate 08RA presented higher pathogenicity in a shorter period of time for N. viridula (mean mortality time "MMT" = 2.8 days) and D. melacanthus (MMT = 4.0 days) than the remaining isolates. At the greenhouse, the isolate 08RA led to a mortality of 44.9% (N. viridula) and 35.7% (D. melacanthus) at eight DAA; however, the mortality was 100% for both species at 14 DAA, with an MMT of 8 and 10 days for N. viridula and D. melacanthus, respectively. The fungus M. anisopliae constitutes a promising alternative agent to control the growth of adult populations of N. viridula and D. melacanthus in wheat cultures.

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Eficiência de Metarhizium anisopliae no controle do Percevejo-do-Colmo Tibraca limbativentris (Heteroptera: Pentatomidae) em lavoura de arroz irrigado

Cited by 21 publications

References 14 publications

Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae

Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae

Pathogenicity of Metarhizium anisopliae isolates on Nezara viridula and Dichelops melacanthus in wheat crop

Control of wheat stink bugs (Hemiptera: Pentatomidae) in southern Brazil using the fungus Metarhizium anisopliae

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