Controlling Dactylopius opuntiae with Fusarium incarnatum–equiseti species complex and extracts of Ricinus communis and Poincianella pyramidalis

Santos, Ana Carla da Silva; Oliveira, Rafael Leão Soares; Tiago, Patrícia Vieira; Oliveira, Neiva Tinti de

doi:10.1007/s10340-015-0689-4

Cited by 31 publications

(13 citation statements)

References 21 publications

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“…The results show positive synergism of products in insect control, it is possible to decrease the concentrations of these, and especially pesticides, aiming thus a smaller impact on the environment when the products are tested on infested palm plantations by D. opuntiae. Likewise, Santos et al (2015) verified the insecticidal action of the R. communis and P. pyramidalis extracts together with Fusarium incarnatum-equiseti species complex (FIESC) on D. opuntiae, and found more efficient fungus association with the R. communis aqueous extract, with mortality percentage of 100% D. opuntiae. The insecticides with the active principles pyrethroid, organophosphate and neonicotinoid were effective against nymphs and adult females of cochineal citrus, Praelongorthezia praelonga Douglas.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the association of LC 50 extracts and LC 50 pesticides, in particular with the insecticide chlorpyrifos could replace the pesticide use in the control of large infestations of D. opuntiae in field testing, which is a suggested option for employment in the environment. The combination of entomopathogenic agents with chemical insecticides or plant extracts can extend the action of these in pest control and reduce the damage caused to the environment (Amjad, Bashir, Afzal, Sabri, & Javed, 2012;Silva, Alves, E. A. L. A. Lima, & V. L. M. Lima, 2015;Santos et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…These substances have insecticidal action more beneficial compared to chemicals because they are renewable, easily degradable and do not contaminate the environment (Oliveira, Lins-Neto, Araújo, & Albuquerque, 2007). Previous studies have reported the action the of extracts and vegetable oils and other bioactive substances in control of nymphs and adults of D. opuntiae (Vigueras et al, 2009;Vázquez-Garcia, Garabito-Espinoza, Tabares-Vega, & Castillo-Herrera, 2011;Borges et al, 2013;Pérez-Ramirez et al, 2014;Santos, Oliveira, Costa, Tiago, & Oliveira, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of Libidibia ferrea var. ferrea and Agave sisalana Extracts against Dactylopius opuntiae (Hemiptera: Coccoidea)

Lopes¹,

Oliveira²,

Correia³

et al. 2018

JAS

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The carmine cochineal (Dactylopius opuntiae) is an insect-plague of Opuntia ficus-indica palm crops, causing losses in the production of the vegetable used as forage for the Brazilian semiarid animals. The objective of this work was to analyze the efficacy of plant extracts, insecticides and their combination in the control of D. opuntiae. Leaf and pod extracts of Libidibia ferrea var. ferrea, Agave sisalana leaf at concentrations 10, 25, 50, 100 and 200 mg/mL, and insecticides (chlorpyrifos, acetamiprid, thiamethoxam and lamba-cyhalothrin) at concentrations minimum, median and maximum; were applied on cladodes infested by D. opuntiae. After 10 days of treatment, the percentages of mortality and LC 50 (concentration to kill 50% of cochineal) were obtained on the stages of nymphs II and adult females. The association between the LC 50 of the plant extracts with the insecticides on the cochineal it was tested. The results showed that L. ferrea extracts were more effective against cochineal, causing the 81% of nymphal II mortality (LC 50 : 20 to 160 mg/mL) and 97% of adult females (LC 50 : 43 to 50 mg/mL), whereas the extracts of A. sisalana only controlled adult females, causing the mortality from 51 to 97% (LC 50 : 17 to 46 mg/mL). The insecticide chlorpyrifos was the most efficient on nymphs and adult females cochineal (LC 50 : 0,084 mL/L). The combination of this insecticide with the extracts promoted a percentage of mortality above 90%. The extracts presented insecticidal potential on D. opuntiae and can be tested isolated or in combination with insecticides in control of cochineal.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficacy of Libidibia ferrea var. ferrea and Agave sisalana Extracts against Dactylopius opuntiae (Hemiptera: Coccoidea)

Lopes¹,

Oliveira²,

Correia³

et al. 2018

JAS

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“…Another term, i.e., “ecological host range” of an entomopathogen is the range of the insect species which can be infected in field conditions [20]. There have been some studies in the past that suggest the entomopathogenic potential of fusaria in a laboratory setting [21,22]. However, caged laboratory conditions provide an additional benefit to the pathogen, and it is not a surprise that the physiological host range is generally higher than the ecological host range.…”

Section: Fusarium As An Entomopathogenmentioning

confidence: 99%

Fusarium, an Entomopathogen—A Myth or Reality?

Sharma

Marques

2018

Pathogens

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The Fusarium species has diverse ecological functions ranging from saprophytes, endophytes, and animal and plant pathogens. Occasionally, they are isolated from dead and alive insects. However, research on fusaria-insect associations is very limited as fusaria are generalized as opportunistic insect-pathogens. Additionally, their phytopathogenicity raises concerns in their use as commercial biopesticides. Insect biocontrol potential of Fusarium is favored by their excellent soil survivability as saprophytes, and sometimes, insect-pathogenic strains do not exhibit phytopathogenicity. In addition, a small group of fusaria, those belonging to the Fusarium solani species complex, act as insect mutualists assisting in host growth and fecundity. In this review, we summarize mutualism and pathogenicity among fusaria and insects. Furthermore, we assert on Fusarium entomopathogenicity by analyzing previous studies clearly demonstrating their natural insect-pathogenicity in fields, and their presence in soils. We also review the presence and/or production of a well-known insecticidal metabolite beauvericin by different Fusarium species. Lastly, some proof-of-concept studies are also summarized, which demonstrate the histological as well as immunological changes that a larva undergoes during Fusarium oxysporum pathogenesis. These reports highlight the insecticidal properties of some Fusarium spp., and emphasize the need of robust techniques, which can distinguish phytopathogenic, mutualistic and entomopathogenic fusaria.

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“…All of these Dactylopius species produce carminic acid, but only D. coccus is cultivated and used for commercial purposes due to the higher amount and quality of its pigment (Rodríguez et al, 2005 ). Moreover, since non-cultivated Dactylopius are considered a cactus plague, in some countries they are used as biological control for these plants (Zimmermann and Moran, 1991 ; Spodek et al, 2013 ; Pérez-Ramirez et al, 2014 ; da Silva Santos et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Fungal Community Associated with Dactylopius (Hemiptera: Coccoidea: Dactylopiidae) and Its Role in Uric Acid Metabolism

et al. 2016

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We studied fungal species associated with the carmine cochineal Dactylopius coccus and other non-domesticated Dactylopius species using culture-dependent and -independent methods. Thirty seven fungi were isolated in various culture media from insect males and females from different developmental stages and Dactylopius species. 26S rRNA genes and ITS sequences, from cultured fungal isolates revealed different species of Cryptococcus, Rhodotorula, Debaryomyces, Trametes, and Penicillium, which are genera newly associated with Dactylopius. Uric acid (UA) and uricase activity were detected in tissues extracts from different insect developmental stages. However, accumulation of high UA levels and low uricase activities were found only after antifungal treatments, suggesting an important role of fungal species in its metabolism. Additionally, uricolytic fungal isolates were identified and characterized that presumably are involved in nitrogen recycling metabolism. After metagenomic analyses from D. coccus gut and hemolymph DNA and from two published data sets, we confirmed the presence of fungal genes involved in UA catabolism, suggesting that fungi help in the nitrogen recycling process in Dactylopius by uricolysis. All these results show the importance of fungal communities in scale insects such as Dactylopius.

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Controlling Dactylopius opuntiae with Fusarium incarnatum–equiseti species complex and extracts of Ricinus communis and Poincianella pyramidalis

Cited by 31 publications

References 21 publications

Efficacy of Libidibia ferrea var. ferrea and Agave sisalana Extracts against Dactylopius opuntiae (Hemiptera: Coccoidea)

Efficacy of Libidibia ferrea var. ferrea and Agave sisalana Extracts against Dactylopius opuntiae (Hemiptera: Coccoidea)

Fusarium, an Entomopathogen—A Myth or Reality?

Fungal Community Associated with Dactylopius (Hemiptera: Coccoidea: Dactylopiidae) and Its Role in Uric Acid Metabolism

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